Measured pressure. How to measure blood pressure with an automatic sphygmomanometer. Types of mechanical devices

This question is asked by every person at a certain period of his life.

The main condition for a reliable measurement of pressure is the correct posture occupied by a person during the procedure. To do this, you should sit as comfortably as possible on a chair or in an armchair and relax. It is preferable to sit in one position for a while.

An excellent option before measuring pressure on the left or right arm is to rest for 10 minutes with your eyes closed, in a chair in a sitting position.

This simple measure will help you relax as much as possible and restore your heart rhythm.

There should be no distractions in the preparation room for the procedure. It is advisable to be in complete silence. This is done to obtain reliable indicators.

The time of the last drug intake at the time of pressure measurement should exceed two hours. This applies to any medication that can change blood pressure readings. The temperature regime in the room where the procedure is carried out should be optimal, about 20 degrees.

After restoring the normal rhythm of the heartbeat, the person is ready to start the procedure. To obtain truthful results, it remains only to take the correct position of the body. For this purpose, it is necessary to lean on the back of the chair and, if possible, relax the muscles as much as possible.

The body must be in a state of complete rest. The arm on which blood pressure is measured is fixed on a hard surface. The legs are bent at the knees and positioned evenly. They must not be allowed to cross to prevent clamping of large blood vessels, as this will automatically change the results.

Very often, people who have resorted to a tonometer for the first time ask the question they are interested in, on which arm to measure the pressure so that the result is as truthful as possible? There is no single answer to this question, since the procedure should first be carried out alternately on both hands.

And also a popular question is how often can blood pressure be measured? The time interval between studies is 3 minutes. This interval is enough to restore blood circulation. The procedure is repeated 10 times, on each hand.

The results are recorded in a notebook for comparison. Which hand is preferable for measuring blood pressure is determined according to the recorded data. Depending on where the highest readings of the electronic or manual tonometer were, that hand is used to determine the level of blood pressure.

On which hand is it correct to measure pressure: the use of a tonometer and a description of the process

On which arm is it correct to measure the pressure in order to obtain reliable indicators of the level of blood pressure. First of all, you need to put on the cuff on the left or right arm. It is placed 2 cm above the elbow.

The cuff is securely fixed to avoid slipping during the procedure. For a tighter fit of the cuff to the arm, it is put on at an angle, taking into account the anatomical structure of the limb. Then you should inspect the mechanical tonometer.

The arrow of the device for measuring pressure must be set strictly in the center, at the zero mark. After the expiration of the service life (7 years), the device should be replaced, since the information obtained after the service life of the tonometer cannot be considered reliable. The service life of the cuff is 3 years. When buying a device for measuring blood pressure, you should try on the cuff.

Since blood pressure cuffs come in a variety of sizes, it is important to choose the right one for you. The modern market offers a wide range, there are options for measuring pressure in infants.

In order to decide on which hand to measure the pressure correctly, it is necessary to measure it on both hands and calculate the largest indicator. The cuff must be filled with air. And in order to obtain reliable data, this should be done quickly.

Air is pumped into the cuff until the arrow is located at around 20 mm Hg. More experienced specialists take into account the sound of the pulse, it is barely distinguishable when the device reaches the desired mark.

As soon as the arrow has frozen at the desired level, stop the air supply to the cuff. After that, a decrease in pressure begins in it, the air is released very slowly in order to establish accurate indicators.

Marking the first signal emitted by the device will show systolic blood pressure.

Second signal mark means diastolic blood pressure. In the absence of a signal, the patient needs to raise his arm and bend it several times. This will correct the situation and the instrument will display the results.

On which arm blood pressure is measured: the main errors and differences in the readings on different arms

On which arm is blood pressure measured to get the most accurate result? Everyone is different. Some need to measure the pressure on the left hand, while others - on the right. But the main thing is to do it right.

There are errors that drastically change the performance:

  • The hand is fixed above or below the desired level. An elevated blood pressure tonometer shows if the limb is located below the level of the heart. Therefore, when in a position below the level of the heart, the device will give a low blood pressure.
  • The back of a person does not rest on a hard surface. The numbers will be high.
  • Wearing a cuff over clothing will also give an erroneous result. If sleeves are present, they should be lifted up but not rolled up to avoid pinching the veins.
  • Not enough air in the cuff. This will serve as the basis for issuing a low systolic blood pressure device.
  • Talking and body movements made by a person also change the indicators.

Changes in blood pressure are different on the right and left hands. This is justified by the anatomical characteristics of the heart - the blood vessels heading to the left and right hand have different pressures. The difference is +/- 30 mmHg. Art.

Therefore, by measuring the pressure on the left hand, you can not pay attention to the beginning of hypertension, which would immediately be detected when measuring blood pressure on the right hand. But regardless of these structural features of the human body, doctors perform the procedure on the left hand. Based on the convenience of the patient.

So on which arm is blood pressure measured? The difference in indicators on both hands is an individual phenomenon. For some, it is insignificant or absent. In this case, the principle of carrying out the procedure applies, for left-handers on the right limb, for right-handers - on the left.

Factors affecting the results:

  • Products containing caffeine and nicotine can increase blood pressure by 5 to 15 mm Hg. In a person who rarely consumes such products, a single use can cause a sharp rise in blood pressure levels.
  • In the presence of arrhythmia, the method for determining blood pressure depends on the form of pathology. The most accurate readings are given by an electronic tonometer.
  • An uncomfortable or incorrect body position will lead to an error in the indicators.

note

British scientists have proved that while maintaining the difference in blood pressure measurement readings of 10 mm Hg. the risk of developing diseases of the vessels of the upper extremities increases by 2 times.

With a difference of 15 mm Hg. Art. and more, dizziness is possible, and there is also a possibility of damage to the vessels and capillaries of the brain, this can easily cause a stroke and even death. Reasons for the big difference?

The hemispheres of the brain are influenced by the vital activity of the whole organism. The work of the internal organs: the kidneys, liver, digestive organs and pancreas, have a huge impact on the activity of the right, and the heart, lungs and hands affect the left hemisphere.

If abnormalities occur in one of the above organs, the natural functions are disrupted, which leads to spasms of the cervical vessels, and a failure of blood circulation in the cerebral hemisphere responsible for its work.

Reduced blood flow to brain cells can contribute to the development of a pre-stroke condition.

Symptoms of a significant difference in blood pressure in both limbs include general weakness, fatigue, dizziness, decreased reactions. But there are exceptions, in the form of a complete absence of signs. And the difference can be established only by constant monitoring of blood pressure in both limbs.

Recommendations for controlling the error in blood pressure indicators on the right and left hands are described in educational publications of medical institutes of the Soviet era. But in practice, few people pay special attention to this factor.

Therefore, if inexplicable signs of a deterioration in well-being appear, it is advisable to independently control blood pressure on both hands at home using the method described above.

Hypertension- this is the scourge of a civilized society - after 40 years, every third person suffers from it. Therefore, in order to independently regulate blood pressure, it will be useful for everyone to learn how to measure it for themselves and their loved ones.

Advantages of a mechanical tonometer

Now medical equipment stores have a wide arsenal of devices for measuring pressure. For this purpose, you can use either semi-automatic or mechanical tonometer. The first two, of course, allow you to carry out the procedure faster, however, in medical institutions, doctors prefer to measure people's pressure in a tried and tested second way.

Therefore, both the general practitioner called by you at home and the paramedic of the ambulance will most likely use a mechanical device.

The advantages of such a device:

  • has a simple design;
  • allows you to measure pressure with maximum accuracy;
  • rarely fails;
  • does not require replacement of batteries;
  • suitable for hands of any fullness, including for children;
  • lasts longer than electronic ones;
  • affordable.

The device of the manual apparatus

A manual tonometer for measuring pressure is an air-filled cuff with Velcro, connected by hoses to a rubber blower - pear and a meter (pressure gauge). The cuff wraps around the patient's shoulder and fastens. The pear is equipped with a screw valve. Through several compressions, air is forced into the cuff.

The most common failure of a mechanical tonometer is a violation of the tightness of the pear: the latter bursts, or an imperceptible crack appears on it over time, which requires replacement of this part of the device.

In addition to some devices, a phonendoscope is attached to listen to the tremors of blood in the artery. These tonometers are definitely more convenient.

What doctors say about hypertension

Doctor of Medical Sciences, Professor Emelyanov G.V.:

I have been treating hypertension for many years. According to statistics, in 89% of cases, hypertension ends with a heart attack or stroke and the death of a person. Approximately two-thirds of patients now die within the first 5 years of disease progression.

The next fact is that it is possible and necessary to bring down the pressure, but this does not cure the disease itself. The only medicine that is officially recommended by the Ministry of Health for the treatment of hypertension and is also used by cardiologists in their work is this. The drug acts on the cause of the disease, making it possible to completely get rid of hypertension. In addition, within the framework of the federal program, every resident of the Russian Federation can receive it IS FREE.

Types of mechanical devices

Manual mechanical tonometers are produced by various manufacturers. The variety of models allows a person to choose the device in accordance with their wishes and material capabilities. The following table shows examples of the most popular mechanical instruments.

ModelMicrolife BP AG1-10B.Well WM-62SLittle Doctor LD-70NRRiester Sanaphon
ManufacturerMicrolife, SwitzerlandB.Well, UKLittle Doctor, SingaporeRudolf Riester, Germany
Includes a phonendoscopeNotThere isNotThere is
Measurement error, mm Hg Art.±2±3±3±3
Cuff dimensions, cm14.5 x 5325–40 14 x 5354.5 x 14.5
Device weight, g360 385 237 390
Important! According to Decree No. 56742, until June 17, every diabetic can receive a unique medicine! Blood sugar is permanently reduced to 4.7 mmol/L. Save yourself and your loved ones from diabetes!

Preparing to measure blood pressure

You need to perform the manipulation in a relaxed state, calming down and not being nervous. To reduce the chance of getting erroneous results, To measure the pressure you need to properly prepare:

  • At least 2 hours before the procedure, give up coffee, alcohol and smoking, from medications that act on blood vessels.
  • Do not undergo significant physical exertion before measurement.
  • Empty your bladder immediately before the procedure.
  • You can measure the pressure 30 minutes after eating.

To measure your blood pressure, you need to perform a series of sequential steps:

  1. Sit at a table with the hand to be examined on its surface, palm up.
  2. Loosely wrap the cuff around your upper arm with the hoses down. Secure it with Velcro.
  3. If there is a phonendoscope included with the device, then insert its ends into the ears, and attach the head with the membrane to the place of the strongest pulsation, usually located on the inside of the elbow joint. If there is no stethoscope, blood strokes will have to be determined visually, guided by sensations in the hand.
  4. Tighten the valve on the pear until it stops and with your free hand inflate the cuff with air until you feel numbness in the shoulder and the pulsation stops. At the same time, observe the pressure gauge needle: it should reach values ​​of 20–30 mm Hg. Art. higher than your normal blood pressure.
  5. Slowly open the pear valve. At this point, you will hear a series of beats (about 8-10 in total) corresponding to the beating of the heart. Remember to look at the dial of the meter: the arrow will quickly move in the opposite direction, towards zero. You should see what mark it will be at when you hear the first and strongest push of blood - this is the value of systolic, or upper, blood pressure.
  6. The beats of the pulse will gradually subside. The last audible push of the series corresponds to the lower (diastolic) pressure. For example, if you heard the first beat of blood when the arrow was at 140, and the last at 90, then your blood pressure is 140/90 mmHg. Art.
  7. At the end of the measurement, open the pear valve fully and let all the air out of the cuff.

Having a certain experience and skill, using a manual tonometer for measuring pressure with a phonendoscope, you can measure these indicators on the leg, if necessary. The point of the most audible pulsation of the vessels is located on the outside of the dorsum of the foot.

normal blood pressure

Normal blood pressure in young and old people, in men and women may differ slightly. Indeed, over time, the vessels inevitably narrow due to the deposition of cholesterol on their walls.

Naturally, the older the person, the higher the norm for him. The following table shows the average blood pressure values ​​by gender and age.

Age in yearsMenWomen
Less than 20115/75 110/70
20 to 30120/80 120/75
30 to 40130/80 130/80
40 to 50135/80 135/80
50 to 60140/85 140/85
Over 60145/85 150/85

An increase in blood pressure is not only caused by hypertension. Sometimes its performance is affected by the weather factor, neuropsychic experiences or physical overstrain. It is not difficult to learn how to measure pressure - even a teenager can master this procedure.

Normally, pressure indicators should constantly be at about the same level. Slight fluctuations in one direction or another are acceptable, but only temporarily, for example, as a result of stress, overwork, mental overstrain. If there are jumps in blood pressure upwards, then this is a sign of the development of hypertension, cardiovascular pathology.

Important! High blood pressure is the main enemy for patients diagnosed with hypertension. Complications (hypertensive crisis, stroke, myocarditis infarction) can be fatal. It is important to keep pressure indicators under strict control, regularly measure pressure with a manual tonometer and keep it always at hand in order to find out the values ​​​​at any time in a relaxed home environment, if necessary, and seek medical help in a timely manner.

Preparation for pressure measurement

It is rather problematic to measure pressure with a manual tonometer, so you should first adapt, acquire some skills. Although, according to the reviews of many users, a home mechanical device is the best and most accurate to date. Composed of:

  • rubber pear with attachment to the cuff;
  • manometer;
  • phonendoscope for listening to sound signals.

On a note! If the patient has vision problems, then the best choice is an automatic or semi-automatic device, then certain skills in work are not required.

It is most convenient to take blood pressure measurements at home, since it is desirable to calm down and relax in order to get more accurate results. In a clinical setting, this is not always possible. The preferred temperature is room temperature. In order to prepare you need:

  • eliminate alcohol intake within 12 hours;
  • do not smoke 1.5 hours before the session;
  • refrain from eating for 0.5 hours.

Action algorithm

To get more reliable blood pressure results means to follow simple sequential steps:

  • lean on the back of a chair, sitting in a comfortable position;
  • release the right hand from clothing or raise the sleeve to avoid pinching the artery;
  • put your hand on the surface of the table so that it does not hang down;
  • put on the cuff just above the elbow by 2-3 cm;
  • fasten with Velcro;
  • insert the auditory part of the stethoscope into the ears;
  • attach the membrane amplifier to the wrist - the site of the pulsating artery;
  • make sure that the arrow on the tonometer is at the level - 0;
  • release the air to the end, if there is one in the cuff, otherwise the measurements may be false;
  • turn the valve on the pear so that during the period of air injection it does not go outside;
  • inflate the cuff, periodically squeezing the pear and until the arrow on the pressure gauge shows an extremely high number;
  • stop air pumping;
  • start slowly unscrewing the valve on the pear, track the lowering of the arrow down;
  • the appearance of 1 knock of the auditory part of the endoscope will indicate the upper pressure indicator, then it should decline.

When the sound disappears completely, then this will be the lower - diastolic pressure. It remains only to deflate the cuff and remove it from the arm.

Attention! It is necessary to choose an indicator for self-measurement of pressure, taking into account the previous indicators. Thus, bring the arrow slightly above the old pressure value.

It is important to position the cuff on the arm correctly so that the air tube descends from the back of the arm, parallel to the radial carpal joint and in relation to the middle finger.

If measurements are taken for the first time, then it is recommended to catch the arrow on the dial up to 220 mm Hg. Art., then stop squeezing the pear, begin to gradually unwind the wheel for a slow release of air. Reliable is to read the highest blood pressure readings with a triple measurement. In all subsequent times, it is recommended to measure the pressure on the arm where it will be the highest. It is advisable for older people to write down the obtained indicators in a notebook in order to analyze and evaluate pressure surges in one direction or another.

You can not cross your legs, throw your legs back. The position of the back should be even, and the hand should be as relaxed as possible and released from under the clothes.

If pressure is measured for the first time, then it is advisable to measure the indicators on each arm in turn. Carry out the procedure three times with an interval of 5-7 minutes. As a result, calculate the average value, that is, sum up the 3 parameters of systolic pressure, divide by the number 3. Perform the same calculations with diastolic pressure.

Types of tonometers

The most common types:

  1. Mechanical consisting of a cuff, a pressure gauge, a connecting hose, a pneumatic chamber, a rubber bulb, a stethoscope.
  2. Semi-automatic with the presence of a pneumatic chamber and air supply to it. All information is reflected on the display, a person only needs to pump up a pear and identify indicators of his pressure.
  3. Oscillometric - as a fairly effective tonometer with the issuance of the most accurate indicators. Minus - the need for recharging, otherwise the device will not work without a battery or batteries.
  4. Automatic blood pressure monitor is a modern electronic microlife with independent reproduction of almost all manipulations. A person will only need to place the cuff on his arm just above the elbow and start the device. Pressure measurement is performed independently, the results are displayed on the panel.

If a person is right-handed, then measurements should be taken on the left hand. It is advisable to measure the pressure at about the same time of day, preferably in the morning. Moreover, for hypertensive patients with jumps in systolic and diastolic indicators, this should become an integral, daily procedure.

Common Mistakes


Often patients make mistakes when working with a tonometer, which is why pressure readings may not be entirely inaccurate. Here are the main nuances:

  1. You can not talk, move at the time of measuring blood pressure.
  2. The cuff should be at the level of the heart and fit snugly around the arm.
  3. Pinching vessels on the arm is unacceptable, as well as hanging from the table. If necessary, you can put a pillow under the elbow.
  4. If you roll up the sleeve, then there will be a squeezing of the arm, a violation of normal blood circulation, as a result - false results.
  5. The cuff should not slip on the arm, so it is advisable to choose the right size, taking into account the circumference of the arm.
  6. If the indicators of the upper, lower pressure are approximate or almost equal to each other, then this is not the norm, a sign of hypertension. It is better not to postpone the visit to the cardiologist.
  7. Between measurements, you need to take breaks for 3-4 minutes, and between the second and third, it is advisable to withstand 5-7 minutes in order to get more reliable results.

If you start measuring pressure on the other arm immediately after the first, then the pressure may be slightly higher due to squeezing the cuff of the primary arm for a long time.

High blood pressure leads to stroke and heart failure. These are deadly diseases. Main symptoms: dizziness, headache, hand tremor. These are the bells that you need to immediately check the pressure. If the indicators go off scale much higher than the usual values, then you need to take action. Inaction is fraught with death.

Frequent stresses, tense and fast-paced rhythm of modern life provoke pressure surges. This negatively affects health.

Some do not attach importance to the resulting headaches, a general unexplained deterioration.

They take painkillers or tonic pills and continue to live in the same rhythm until poor health and problems of the cardiovascular system become apparent. You need to measure the pressure, to measure the pressure you need a tonometer. High blood pressure is recorded in 40% of the population. Everyone needs to know how to measure pressure correctly.

Measuring pressure and determining your blood pressure indicators (observing the algorithm of actions is necessary not only for people with health problems.

In order to detect and promptly eliminate possible deviations in the body and not to miss the onset of the disease, it is necessary to periodically monitor pressure indicators in healthy people. There are various methods for measuring blood pressure.

Types of tonometers

The pressure is measured with a special device - a tonometer, which happens:

  • mechanical
  • semi-automatic
  • automatic

The device consists of:

  1. cuffs - worn on the arm;
  2. pears - for pumping air into the cuff
  3. manometer - fixing pressure indicators
  4. Phonendoscope

Need to read the rules how can measure pressure different tonometers to choose the convenient one for you. When purchasing a blood pressure monitor, it is very important to choose the right cuff. The pneumocuff is put on the arm and compresses it when air is injected, it must correspond to the volume of the arm. Cuffs are made in different sizes (for overweight people, for children). Omron tonometers have proven themselves well.

To get reliable, correct numbers, you need to know how to measure blood pressure.

Many people think that it does not matter which arm to measure the pressure on. However, the measurements on both hands differ by 10-20 mm Hg. If the difference in indicators, depending on which arm you measure the pressure on, differs much more (than 10-20 units), then this may indicate dissection of the aortic walls - a rare and serious disease. There is no exact confirmed data on which arm the pressure is higher. In some people (about 50% of the population), the pressure on the right hand is higher than on the left. For others (45%), the opposite is true. It depends on the individual characteristics of the person and is considered the norm. To obtain the most accurate data, you need to measure the pressure on both hands. In the future, determine for yourself on which arm it is correct to measure the pressure, since there is no consensus.

There are different methods for measuring blood pressure. To get the right readings when measuring blood pressure, you need to know how to measure blood pressure correctly. The following rules must be observed:

  • an hour before do not smoke, do not drink alcohol, do not drink coffee;
  • create a calm, comfortable environment;
  • take a sitting posture, relax
  • empty the bladder;
  • place the hand to put on the cuff on the table so that the elbow is approximately at the level of the heart
  • don't talk or move

The room should be warm, from the cold the vessels shrink and the readings will be distorted. If you need to re-measure, pause for 5 minutes, relaxing the cuff.

It is necessary to measure the pressure 2-3 times, take the average. Sometimes the patient experiences excitement at the sight of a white coat. If the person was lying down and stood up abruptly, the pressure would also increase. Give the person time to calm down and relax.

Blood pressure shows the work of the heart: upper (systolic) - the heart is maximally compressed, lower (diastolic) - maximally relaxed. Optimal pressure (normal) 120/80 mm Hg. Art. Indicators 100-130 / 60-85 are considered satisfactory. Deviations from these figures in any direction signals some pathologies in the body, the onset of the disease. The reasons can be: hormonal failure, diseases of the vessels, heart, kidneys. It is necessary to undergo an examination. Arterial hypertension (AH) has 3 degrees of development:

  • high blood pressure - 130-139 / 85-89;
  • hypertension of the 1st degree - 140-159 / 90-99;
  • hypertension of the 2nd degree - 160-179 / 100-109;
  • hypertension of the 3rd degree - above 180 / above 110.

These numbers may change slightly with age.

Measuring pressure with a mechanical tonometer


Various ways to blood pressure measurements, pressure measurement is carried out by different tonometers . Many people use mechanical blood pressure monitors as the most affordable ones, but do not know how to properly measure blood pressure using it themselves. We offer an algorithm for measuring blood pressure with a manual (mechanical) tonometer:

  • sit down at the table, put your feet flat on the floor;
  • free your hand from clothing;
  • fasten the cuff (3-4 cm above the elbow). The cuff should be approximately at the level of the heart, do not pinch the arm with the cuff (should not press);
  • place a phonendoscope on the elbow to listen to the pulse;
  • quickly pump air to the readings (200, sometimes more) on the pressure gauge;
  • release air slowly by loosening the valve;
  • carefully listen to the pulsation of the heart: the first beat is the upper pressure (note the number on the pressure gauge), the last beat is the lower pressure (the number on the pressure gauge). You can also calculate your heart rate per minute.

By following the rules for measuring blood pressure, you can get the right readings. It is easy to learn how to measure blood pressure with a mechanical tonometer yourself. Indeed, at home, you need to do this 2-3 times a day, especially for hypertensive patients. When making pressure measurements, keep a record of indications for the attending physician in order to correctly select the necessary drugs to stabilize it.

People speak well of a mechanical tonometer. It should be in every home, especially the elderly. At first, the measurement process may seem difficult. But when you acquire the skills of measuring pressure, how to measure pressure with a mechanical tonometer, everything will turn out easily and not take much time.

Many people prefer to measure pressure with a manual tonometer, not trusting automatic devices. But it is not easy for people over 60 to cope with measuring pressure with a mechanical tonometer. For the elderly, it is recommended to purchase an automatic device.

How to measure blood pressure with an electronic sphygmomanometer

Everyone knows how to measure pressure with a manual sphygmomanometer. But measuring blood pressure with a mechanical tonometer is not always convenient. To simplify the process, modern technologies offer new instruments for measuring pressure. You can buy an electronic blood pressure monitor at any pharmacy.

It is very simple to measure pressure with an automatic sphygmomanometer. The technique for measuring blood pressure is as follows: put a cuff on your arm and press the “start” button on the device. If the cuff is worn correctly, OK and a circle symbol are displayed on the monitor. The electronic tonometer will inflate the cuff itself, take all the measurements, and display the blood pressure and pulse indicators (number of heart beats per minute) on the screen. Such a device is convenient for those who need to measure the pressure several times throughout the day. How often and how to measure, the attending physician will tell you.

It also has an arrhythmia indicator. They are easy to use, indispensable when it is not easy for a person to measure these indicators with a mechanical tonometer, for example, at the time of an attack. There are models equipped with built-in memory, convenient for hypertensive patients. The attending physician can view the history, the dynamics of changes in pressure in the process of taking a certain drug. This will help to choose the most effective drug to maintain optimal pressure for a particular patient. Before purchasing the device, learn howmeasure pressure conventional sphygmomanometer and how to measure pressure with an electronic tonometer correctly and choose the option that is more suitable for you.

There is an opinion that an electronic device often measures incorrectly, since it shows different numbers with each subsequent measurement. This is due to the fact that the device responds to the slightest changes (fluctuations) in blood pressure. Therefore, in order to more accurately measure the pressure, it is necessary to take measurements 3 times in a row (with pauses of 5 minutes) and calculate the average result.

In semi-automatic electronic blood pressure monitors, the air must be injected independently, and the numbers are displayed on the monitor. They have 3 types of cuffs that are worn on the shoulder, finger, or wrist. A model with a cuff on the finger sins with measurement inaccuracy. At the price they are located between mechanical and electronic.

Measurement of blood pressure according to the Korotkoff method


In 1906, an auscultatory method for measuring blood pressure was published by the Russian professor S.N. Korotkov. The Korotkov method of bloodless measurement of blood pressure and the method is the only one approved by WHO and recommended by doctors in the world for use to this day. The measurement is carried out with a sphygmomanometer, with the help of a stethoscope they listen to the Korotkoff sounds from the clamped artery.

This method measures pressure much more accurately. Korotkov described 5 phases of heart sounds heard during cuff deflation, of which:

  • 1st phase (appearance of tones) - the readings of the sphygmomanometer correspond to systolic pressure;
  • 5th phase (disappearance of tones) - diastolic pressure.

Every third person in the world suffers from hypertension. Cardiovascular disease ranks first in terms of mortality. Particular attention should be paid to your health in terms of the work of the heart and blood vessels.

If symptoms such as dizziness, headaches, nausea occur, you need to check the pressure, learn how to measure pressure with a tonometer, and purchase a suitable device for this.

Controlling your blood pressure isn't just for those who have problems. The determination of this indicator is also important for a healthy person in order to make sure that there are no deviations and to detect developing pathologies in a timely manner.

But in order for the data to be accurate, you need to know how to measure blood pressure correctly, which tonometer to use for this, and what the numbers mean.

There are certain rules for measuring blood pressure that must be followed in order to obtain reliable results. Otherwise, the data will be distorted, which will affect the diagnosis and treatment, if necessary.

Blood pressure measurement is performed as follows.

Pressure is measured with a special device: a tonometer, which can be mechanical (manual), semi-automatic, automatic (electronic). It is important to know which one is the most convenient and which company made it (Omron, Microlife, etc.). The most accurate are considered blood pressure monitors manufactured by Omron.

The tonometer consists of a pneumocuff that compresses the arm, a pear that pumps air, and a pressure gauge. The most commonly used technique for measuring blood pressure is to place a cuff on the upper arm. This method of measurement is the most accurate.

It is very important that the size of the cuff is in accordance with the volume of the arm. Too narrow a cuff can cause erroneous results. Therefore, there are special cuffs designed for children or overweight people.

The pressure is measured in a room with room temperature, where the patient feels comfortable and calm. If the room is too cold, the numbers may be higher due to vasospasm. Before performing the procedure, you need to relax the person. It takes at least 5 minutes to relax.

Do not measure blood pressure immediately after eating, coffee or cigarettes. This also distorts the results. Before the measurement should take at least half an hour.

You should also make sure that the patient does not have white coat syndrome. The presence of such a feature can cause difficulties with the diagnosis.

There is a question in which position it is better to measure the pressure: sitting or lying down. There are differences in results between these two methods. When you change position, changes in blood circulation occur, because, depending on whether a person is lying down or sitting, blood is supplied to his organs. Therefore, when measuring in lying and sitting positions, there will be a difference. How will the pressure change if a person was lying down and then got up? The numbers will first decrease and then increase.

Proper measurement technique requires the patient to be seated rather than lying down. Usually doctors take measurements in this way. The existing rules for decoding indicators are focused on sedentary patients. But in some cases, you can measure blood pressure and lying down, if it is difficult for the patient to sit.

During the procedure, a person should lean on the back of a chair, while it is undesirable to cross your legs. It is advisable to completely relax. The hand should be lowered onto a table or any other supporting surface. This will help avoid distortion due to muscle tension. Do not move your hand during the measurement.

The blood pressure measurement algorithm is as follows:


The first time to measure the pressure is on both hands. The indicators may differ.

15 mmHg difference considered normal. The following measurements should be performed on the arm on which the greater result is found. In the presence of hypertension, blood pressure measurements should be taken twice a day, in the morning and in the evening. It is also important to take measurements when you feel unwell.

No special preparations are required before performing these actions. It is only important to relax and not strain, and also take a comfortable position so that the arm does not hang down.

What should not be done before the measurement?

The blood pressure monitor may show erroneous results if, shortly before the measurement, the patient:

All these actions should not be performed before measuring blood pressure.

During measurements, it is undesirable to talk, actively move, keep your hand on weight, strain your muscles.

Types of tonometers

Patients are interested not only in the algorithm for measuring blood pressure, but also which tonometer is better to use for this. Several companies can be named among the manufacturers of tonometers. This:

  • AND (Japan). The shoulder tonometer AND UA-777 manufactured by this company is most in demand.
  • Omron (Japan and Germany). Omron products are in great demand in the market. Most often, they purchase an Omron M2 Classic blood pressure monitor.
  • Microlife (Switzerland). The devices of this brand also have good reviews, they are recognized as the best blood pressure monitors for the whole family.

All three firms are the most well-known manufacturers of measuring devices on the market. The most commonly used tonometers are Omron, which produces various types of devices.

To determine which tonometer to use, you should familiarize yourself with the advantages and disadvantages of each of them.

It is also desirable to find out what reviews exist about manufacturing companies. A lot of positive feedback has been left about Omron blood pressure monitors. That is why the devices produced by this company are so common. And, when purchasing a blood pressure monitor for home use, you should choose Omron.

Types of tonometers:


They also produce tonometers, which are placed on the wrist for measurements. Such a device is convenient and easy to use, it is easy to carry, which is important for people who need to constantly monitor their pressure. It is problematic to use such a tonometer for a person with atherosclerosis.

You can learn more about how to choose a tonometer for measuring pressure at home.

When do people talk about white coat syndrome?

In the practice of many doctors, white coat syndrome is often mentioned. What is this phenomenon?

White coat syndrome is associated with an increase in blood pressure in a person when it is measured by a doctor.

That is, at home, he records some results, and in the doctor’s office, others, as a rule, are higher. About 15% of patients experience white coat syndrome.

What is the reason for this phenomenon is unknown. There are suggestions that some people subconsciously retain the excitement experienced at the first visit to the doctor, and this excitement is repeated at subsequent visits. This is what causes the white coat syndrome. In some people, a similar reaction occurs not to the measurement of pressure by a doctor, but to the procedure itself.

Due to the fact that the patient has white coat syndrome, there are difficulties with diagnosis. This is especially evident at reduced pressure, since in this case the tonometer shows the norm. But even with increased pressure, problems may arise when the prescribed treatment has already brought the necessary results, but due to the patient's inherent syndrome, this cannot be established. Therefore, doctors recommend taking measurements at home and recording the data obtained in a special diary.

Any measurements must be analyzed and correlated with the norm. This also applies to pressure indicators. It is very important to know what the results mean.

There are no strict criteria for the norm of blood pressure, since this characteristic is very dependent on the individual characteristics of a person. There are also some differences in the results of measurements taken lying down and sitting. Nevertheless, the World Health Organization has deduced a certain classification, which doctors are guided by when diagnosing.

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