How to Measure Blood Pressure

by Dan MacKinnon  BScPT, MClScPT
updated Oct 16, 2024

Monitoring your blood pressure at home is a great way to keep track of your health. Here’s a step-by-step guide to help you measure your blood pressure accurately:

What you’ll need:

– A blood pressure monitor (either a manual sphygmomanometer with a stethoscope or an automatic digital blood pressure cuff)
– A comfortable, quiet place to sit

Steps for Measuring Blood Pressure

For a video resource try here

1. Prepare for Measurement:
– Rest Before Measuring: Sit quietly for at least 5 minutes before taking your blood pressure. This helps ensure that the reading is accurate.
– Avoid Certain Activities: Don’t eat, drink caffeinated beverages, smoke, or exercise right before measuring.

2. Get Comfortable:
– Seated Position:Sit in a chair with your back supported and your feet flat on the floor. Your arm should be supported on a flat surface (like a table) with your palm facing upward.
– Arm Position: Make sure your arm is at heart level.

3. Apply the Cuff:

Digital Monitors:
– Wrap the cuff around your upper arm, just above the elbow. The cuff should be snug but not too tight. Make sure the bottom of the cuff is about 1 inch above the bend of your elbow.
– If you’re using a wrist monitor, follow the manufacturer’s instructions to ensure the cuff is placed at heart level on your wrist.

Manual Monitors:
– Place the cuff on your upper arm, aligning it with the brachial artery (located just above the elbow). Secure it snugly but not too tight.

4. Take the Measurement:

Digital Monitor:
– Press the start button on the device. Stay still and do not talk during the measurement. The cuff will inflate and then slowly deflate while the monitor records your blood pressure.

Manual Monitor:
– Use the bulb to inflate the cuff until it is tight around your arm.
– Slowly release the air while listening with the stethoscope placed over the brachial artery. Note the readings when you first hear the heartbeat (systolic pressure) and when the sound disappears (diastolic pressure).

5. Record the Reading:
– Write down the systolic (top number) and diastolic (bottom number) pressures along with the date and time of the measurement. If you’re tracking multiple readings, it’s helpful to note any additional factors like how you were feeling.

Other Tips:

• Consistency: Measure your blood pressure at the same time each day to monitor trends over time.
• Avoid Movements: Try not to talk or move while taking the measurement.
• Check Your Device: Regularly check that your blood pressure monitor is calibrated according to the manufacturer’s recommendations.

About the author

Daniel MacKinnon

Physiotherapist Learn More about Daniel MacKinnon