How to Get Accurate Blood Pressure Test Results

Filed Under: Heart Health, Blood Pressure Webinar

woman taking her blood pressure

Learn the best techniques for ensuring you receive an accurate blood pressure reading, at home or in the doctor’s office, with my guidelines.

High blood pressure levels often has no symptoms, which is why it’s referred to as the "silent killer." The most important thing you can do to keep yourself out of the “danger zone” is to test your blood pressure levels regularly. 

Healthy blood pressure levels are considered to be less than 120 over 80 mmHg, where the first number is systolic pressure and the second is diastolic pressure. Systolic pressure is the amount of force created as blood is pumped into your arteries, and diastolic pressure is the force that results when your arteries contract and resist the flow of blood. High blood pressure levels means you have a systolic blood pressure of 140 mmHg or greater, or a diastolic pressure of 90 mmHg or greater. Hypertensive crisis—where emergency care is needed—is defined as a high blood pressure level with a systolic reading of higher than 180 mmHg or a diastolic reading of higher than 110 mmHg. It is estimated that 73 million Americans have high blood pressure levels and uncontrolled high blood pressure.

How To Monitor Your Blood Pressure at Home

If you have a strong family history of high blood pressure levels, like I do, I recommend getting a blood pressure monitor you can use at home. Not only does it let you test your blood pressure levels more frequently—it helps you avoid something called "white coat hypertension." That’s when your blood pressure spikes in the doctor’s office due to the anxiety of the situation, giving you an artificially high reading.

Get more of Dr. Sinatra's advice on Healthy Blood Pressure

Because getting an accurate blood pressure test reading is an important first step to controlling high blood pressure, I want to share with you the three guidelines I follow when checking my patients’ blood pressure.

Blood Pressure Test Guidelines

1. Refrain From Talking

When taking a resting blood pressure test, I don’t let people talk. Talking drives your numbers up. As a group, air traffic controllers have higher-than-normal blood pressure. They’re under enormous pressure—and they talk all the time.

2. Try to Relax

It’s clichéd but true—the worst place to take a blood pressure test is in a doctor’s office.

Many people come in with considerable anxiety (hyperarousal), and that drives the numbers up. There’s even a name for this phenomenon—“white coat hypertension.” This is why I have more faith in home blood pressure test readings than I do in those recorded in a doctor’s office. It’s also why I avoid taking a blood pressure test if the patient rushed getting to my office, especially when he or she was caught in traffic, when the outside temperature is very cold or when some emotional stress issues are ongoing.

The bottom line: Remain calm before and during the blood pressure test.

3. Position Yourself Properly

Research has shown that the results of your blood pressure test can be affected if your pressure is taken while you’re sitting on an exam table without arm or back support, or while your feet are dangling instead of being on the floor. Standards adopted by the American Heart Association—and I agree with them—include:

  • The patient should be seated with back support.
  • The patient's bare arm should rest on the table so that when the cuff is placed on the upper portion of that arm it is at “heart level”.
  • The patient should have their feet on the floor and not dangling.
  • The stethoscope bell—or sensor—should overlay the brachial artery, which is at the inside of the bend of your elbow, where a pulse can usually be found.

4. Try Both Arms

For some people, a blood pressure difference between the two arms is normal. Doctors should note it on your medical record, and track it accordingly on both sides. They will usually take an average of the two blood pressure readings.

For standardization and accuracy, blood pressure should be taken exactly the same way every time. It's best to take a blood pressure reading an hour after awakening, before breakfast. 

However, if you are monitoring your blood pressure at home, I recommend taking blood pressure tests at different times throughout the day and averaging your readings to get the best sense of what your current pressure is. Doing this is important because blood pressure fluctuates over the course of the day, and you don’t want all of your readings to be taken at a time when it’s naturally high or low. 

WATCH: How to Properly Take Your Blood Pressure Test at Home



More Dr. Sinatra Advice on Understanding Blood Pressure

What should your blood pressure reading be? Find out what your blood pressure numbers should be and what causes high blood pressure.

What are the symptoms and risk factors associated with high blood pressure?  Learn about the health consequences of having high blood pressure.

Are you a woman with blood pressure concerns? Discover why women are especially susceptible to high blood pressure and its negative impact on health.

Read questions and answers about high blood pressure.

DISCLAIMER: The content of is offered on an informational basis only, and is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified health provider before making any adjustment to a medication or treatment you are currently using, and/or starting any new medication or treatment. All recommendations are "generally informational" and not specifically applicable to any individual's medical problems, concerns and/or needs.

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