Reviewed by Ryan Adami, DO, dual board-certified in Internal Medicine and Pediatrics, Founder & Medical Director, Xcelsior Health, Tampa, FL

High blood pressure is one of the most important risk factors for heart attack and stroke, and one of the easiest health metrics to monitor at home.

But there’s an important catch: how you measure your blood pressure matters.

An improperly positioned arm, crossed legs, talking during the reading, or checking your blood pressure immediately after a stressful event can all affect the number you see.

At Xcelsior Health, we look beyond a single reading. Blood pressure naturally changes throughout the day, which is why consistent measurements and long-term trends provide much more useful information than one isolated number.

Watch Dr. Ryan Adami Explain How to Measure Blood Pressure at Home

In the video below, Dr. Adami walks through proper positioning, how to respond to an unexpectedly high reading, and what to look for when choosing a home blood pressure monitor.

What Does a Blood Pressure Reading Mean?

Blood pressure is recorded as two numbers.

• Systolic pressure is the top number and represents the pressure in your arteries when your heart contracts.
• Diastolic pressure is the bottom number and represents the pressure when your heart relaxes between beats.

The 2025 American Heart Association / American College of Cardiology high blood pressure guideline classifies readings of 130/80 mmHg or higher as stage 1 hypertension in adults.

However, one reading at or above 130/80 does not automatically mean you have hypertension.

Blood pressure can change throughout the day in response to stress, caffeine, physical activity, pain, sleep, medications, and even the circumstances surrounding the measurement.

The goal isn’t to react to one number. It’s to understand the trend.

How to Take Your Blood Pressure Correctly at HomeIf you’re monitoring your blood pressure at home, a few simple adjustments can make your readings more reliable.

1. Prepare before you measure

Empty your bladder first, and avoid caffeine, smoking, and exercise for about 30 minutes beforehand. Each of these can temporarily raise your reading.

2. Sit in a chair with back support

Sit upright in a comfortable chair with your back supported.

Avoid taking your blood pressure while standing, sitting on the edge of a chair, or otherwise unsupported.

3. Keep both feet flat on the floor

Place your feet flat on the ground and avoid crossing your legs.

Your posture can influence your reading, so consistency is important each time you measure.

4. Rest your arm at heart level, on bare skin

Place the arm you’re using on a table, desk, or other stable surface so that the cuff sits at approximately heart level.

Don’t hold your arm up yourself. Let it rest comfortably.

Place the cuff directly on your upper arm rather than over a sleeve—measuring over clothing can distort the reading.

5. Use an upper-arm cuff

For home monitoring, an appropriately sized upper-arm blood pressure cuff is generally preferred.

Make sure the cuff fits properly and follow the manufacturer’s instructions for placement.

6. Sit quietly before measuring

Give yourself a few minutes to settle before taking your reading. The American Heart Association recommends resting quietly for at least five minutes.

Avoid measuring immediately after exercise, caffeine, or a stressful situation when possible.

During the measurement, remain quiet and still—talking can raise your reading.

7. Take two readings

Take two readings about one minute apart, and try to measure at the same time each day.

If the first number is higher than expected, don’t panic.

Anxiety can cause blood pressure to rise quickly. Instead, sit quietly, take a few slow, deep breaths, and repeat the measurement.

The second reading may provide a very different result.

What If Your Blood Pressure Is High?

An unexpectedly high reading isn’t necessarily an emergency.

Before assuming something is wrong, consider the circumstances surrounding the measurement.

Were you:

• Stressed or anxious?
• In pain?
• Recently exercising?
• Drinking caffeine?
• Rushing around?
• Talking during the measurement?
• Sitting in an uncomfortable position?

These factors can temporarily raise blood pressure.

That’s one reason patterns matter more than isolated readings.

Keeping a consistent record of your readings helps you and your provider determine whether your blood pressure is regularly elevated or whether an occasional high reading is simply part of normal variation.

When Should You Seek Medical Attention?

While an isolated elevated reading isn’t necessarily cause for panic, certain readings and symptoms should not be ignored.

Call 911 if your reading is above 180/120 mmHg and you have symptoms such as chest pressure, severe headache, vision changes, difficulty speaking, shortness of breath, or weakness or numbness.

If your reading is above 180/120 mmHg without those symptoms, wait one minute and measure again. If it remains that high, contact your provider right away.

If you are concerned about a reading or aren’t sure what your numbers mean, talk with your provider rather than trying to interpret the result on your own.

If you’re an Xcelsior Health member, you don’t need to wait for an opening to do that. Call, text, or message your provider directly– and if you need to be seen, we’ll get you in the same day or next day, with enough time on the schedule to actually go through your readings together.

Choosing a Home Blood Pressure Monitor

Not every blood pressure monitor provides the same level of accuracy.

When purchasing a device, look for a clinically validated blood pressure monitor rather than choosing based solely on price, convenience, or brand recognition.

A useful resource for checking whether a device has been validated is ValidateBP.org, maintained by the American Medical Association, which lists clinically validated blood pressure devices.

Monitors we suggest: Upper-arm cuffs from Omron and A&D Medical are good examples. Both are widely available at pharmacies including CVS and Walgreens.

A note on wrist and wearable devices

Newer wrist-based devices use photoplethysmography (PPG) technology to estimate blood pressure. While the technology is promising, Xcelsior Health is not formally endorsing these devices at this time. The 2025 AHA/ACC guideline likewise cautions against relying on smartwatches and cuffless devices until their accuracy improves.

As more validation data becomes available, we’ll reassess.

Blood Pressure Is a Trend, Not Just a Number

One of the most useful things you can do for your cardiovascular health is understand your blood pressure over time.

A single reading gives you a snapshot. Consistent measurements reveal a pattern.

That distinction matters because cardiovascular risk isn’t determined by one number in isolation. Your blood pressure should be considered alongside your age, family history, metabolic health, lifestyle, medications, and other health markers.

It’s the same reason our Longevity Plus members connect their Apple Watch, Oura, or WHOOP data directly to their physician—continuous data reviewed by a doctor who knows your history is far more useful than a number you’re left to interpret alone.

At Xcelsior Health, we believe better health decisions come from looking at the whole picture—not reacting to one isolated measurement.

If you’re tracking your blood pressure at home, focus on consistency, use a validated device, and make sure you’re measuring it correctly. Those simple steps make your data much more useful—and give you and your physician a clearer picture of your cardiovascular health.

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Have questions about your blood pressure or cardiovascular health? Xcelsior Health is a direct primary care practice in South Tampa. Become a member or call 813-605-1977 to learn how a more proactive approach to primary care helps you understand your health over time.

This article is for educational purposes and is not a substitute for individualized medical advice. Talk with your healthcare provider about your specific situation.