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Blood pressure is a vital indicator of an individual’s overall health and wellbeing. It reflects the force exerted by blood against the walls of arteries as the heart pumps it throughout the body. Understanding blood pressure is crucial for healthcare providers and individuals alike, as it can provide insights into potential cardiovascular issues and allow for proper medical interventions. However, to comprehend blood pressure readings, one must first be acquainted with the unit of measurement used and how to accurately measure and interpret blood pressure. In this article, we will explore the unit of blood pressure, commonly expressed in millimeters of mercury (mmHg), and delve into the proper techniques for reading and measuring blood pressure to ensure accurate results. Armed with this knowledge, individuals can take proactive steps towards maintaining their cardiovascular health and overall well-being.
Measuring blood pressure is an important thing for regular health monitoring. Join Thptlaihoa.edu.vn to find out what the unit of blood pressure is as well as how to measure and read blood pressure on a blood pressure monitor!
What is blood pressure measurement?
Blood pressure measurement concept
Blood pressure measurement is one of the manual examination methods to measure the increase and decrease in blood pressure of a person in a certain period of time to assess the body’s blood pressure index, to support the examination and treatment process. sick.
Principle of blood pressure measurement
Blood pressure measurement is performed based on the principle of inflating a rubber armband to release the pulse of an artery and then gradually releasing the air to help observe and record the response of the artery. basis for diagnosis.
Blood pressure measurement results include 2 important indicators :
- Systolic blood pressure : Determined at the time when blood begins to pass through the vessel when the pressure in the rubber band begins to decrease.
- Diastolic blood pressure: Corresponds to the time when blood is completely free to circulate in the artery when there is no longer pressure from the rubber band on that artery.
What is a blood pressure reading?
Blood pressure is a number that shows how much pressure the heart exerts on the walls of blood vessels when the heart pumps blood. Based on this index, doctors can diagnose whether the patient’s cardiovascular health is good or not.
To determine what blood pressure is like, people will perform heart pressure measurements in both contractile (systolic) and dilated (diastolic) states. The larger the gap between these two numbers, the more normal the blood pressure, and vice versa.
The older you are, the higher your blood pressure will be
What is the unit of blood pressure?
The unit for measuring blood pressure is in millimeters of mercury. On measuring devices users will see the abbreviation for this unit is mmHG. Note, blood pressure readings can be affected by external environmental factors, leading to erroneous results.
Therefore, to get the most accurate measurement results, you should take measurements several times a day to be able to correctly determine your current health status and promptly receive treatment.
Microlife B6 Advanced automatic blood pressure monitor provides accurate blood pressure and heart rate measurement results
How to read blood pressure readings
Currently on the market there are many devices that support blood pressure measurement such as electronic blood pressure monitors in the wrist or electronic monitors in the upper arm. Despite the differences in design, the readings of blood pressure readings on these devices are similar.
- Systolic blood pressure: The number displayed at the top, equal to the SYS character and always greater than the number below. At this time, the pressure of the heart on the walls of the vessels is at its highest.
- Diastolic blood pressure: The number measured below, level with the letter DIA . This is a state when the heart is expanding and the pressure of the heart on the vessel walls is minimal.
Yuwell YE8600A electronic wrist blood pressure monitor has the function of measuring heart rate, blood pressure, health warning
Why measure blood pressure?
For the elderly, sick people or people with blood pressure problems, blood pressure measurement is very necessary. This helps you to check and monitor your blood pressure regularly, so that you can detect abnormal health problems for appropriate treatment.
Measure your blood pressure regularly to easily control your health condition
The most accurate way to measure blood pressure at home
Standard posture to measure blood pressure
To measure blood pressure for the most accurate results, the patient must choose a comfortable sitting position , before relaxing for 5 minutes.
Do not measure blood pressure immediately after running fast, climbing stairs, having just eaten, being too hungry, too tired, etc. because the blood pressure is then high or lower than the normal number.
Sit in the correct position for accurate blood pressure readings
Blood pressure measurement location
With an electronic sphygmomanometer, blood pressure can be measured in the upper arm or wrist as long as the sensor point in the cuff is at heart level. Specifically:
- If measuring on the biceps: The arm can be placed on the back of the table with the touch point about 2cm above the elbow crease.
- If measuring at the wrist: Bend your arm about 45 degrees so that your wrist is level with your heart.
Manipulation of blood pressure
After determining the measurement position and position, put on the hand wrap and press the control button on the machine to start the measurement process. Hold the position until the results are displayed on the screen, then turn off the device.
Hold the position until the blood pressure reading is available
Note:
- When measuring blood pressure, you should pay attention not to eat, drink, or speak while measuring blood pressure because it will cause erroneous results.
- When measuring for the first time, measure both arms so that later choose the arm with the blood pressure that tends to be higher.
- Blood pressure should be measured twice a day , in the morning before taking the medicine and in the afternoon about 1 hour after a meal.
- Record all results with the date and time of the measurement in a notebook for the doctor to easily evaluate during the follow-up visit.
Result of blood pressure measurement
When reporting results, you must include both systolic (large numbers) and diastolic (small numbers) values because doctors can only diagnose disease and assess progress when both values are available. In there:
- Normal blood pressure: The systolic blood pressure is less than 120 mmHg and the diastolic blood pressure is less than 80 mmHg.
- High blood pressure: When the systolic blood pressure is greater than 140 mmHG and the diastolic blood pressure is greater than 90 mm Hg .
- Prehypertension: The value of the blood pressure readings is between normal and high blood pressure (systolic blood pressure 120 – 139 mmHg or diastolic blood pressure 80 – 89 mmHg ).
- Low blood pressure : Diagnosed when systolic blood pressure is less than 90 mmHg or 25 mmHg lower than normal.
(DBP: Systolic blood pressure; HATtr: Diastolic blood pressure; BP: Blood pressure; BP: Hypertension)
Above is information on how to measure blood pressure accurately that Thptlaihoa.edu.vn shares with you. If you have any questions, please leave a comment below the article.
In conclusion, the unit of blood pressure is typically measured in millimeters of mercury (mmHg), which represents the amount of pressure exerted on the blood vessel walls during systole (when the heart contracts) and diastole (when the heart is at rest). Accurate measurement of blood pressure is crucial for diagnosing and managing various medical conditions such as hypertension or hypotension.
To read and measure blood pressure accurately, it is essential to use a reliable blood pressure monitor, either manual or digital. The process involves positioning the cuff around the upper arm at heart level, inflating the cuff to temporarily stop blood flow, and slowly releasing the pressure while listening to the heartbeat with a stethoscope or relying on electronic sensors.
When reading blood pressure, two numbers are recorded: systolic pressure over diastolic pressure. The systolic pressure represents the maximum force exerted on the arterial walls during the heartbeat, while the diastolic pressure indicates the minimum force when the heart is at rest. These numbers are expressed in millimeters of mercury and are typically reported as a ratio, with systolic pressure appearing on top.
To ensure accurate measurement, one should take blood pressure readings in a quiet environment, avoiding stressful or stimulating activities beforehand. It is also recommended to avoid smoking, caffeine, and intense physical activity for at least 30 minutes prior to measurement. Proper cuff size selection and correct cuff positioning on the upper arm are crucial to obtain precise readings.
Ultimately, accurate measurement and monitoring of blood pressure are vital for maintaining cardiovascular health and preventing potential complications. Regular checks and understanding blood pressure readings can assist individuals in making informed decisions regarding their lifestyle, diet, and medication, leading to improved overall well-being.
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