How to Check Blood Pressure at Home

Knowing how to check blood pressure at home can help you monitor your readings regularly and keep track of changes over time. Using a validated automatic upper-arm blood pressure monitor is generally the easiest option for home measurements. Accurate results depend on using the correct cuff size, sitting properly, and taking the reading under suitable conditions.

1. Choose the Right Blood Pressure Monitor

Use an automatic blood pressure monitor designed for the upper arm. Make sure the cuff fits your arm correctly because an incorrectly sized cuff can affect the reading.

• Choose an upper-arm monitor
• Use the correct cuff size
• Check that the device is working properly

2. Prepare Before Taking the Reading

Rest quietly for about five minutes before measuring your blood pressure. Avoid smoking, exercising, and consuming caffeine shortly before taking a reading because these can temporarily affect your results.

• Sit quietly before measuring
• Empty your bladder if necessary
• Avoid exercise, smoking, and caffeine beforehand

3. Sit in the Correct Position

Sit on a chair with your back supported and keep both feet flat on the floor. Rest your arm on a table so that the cuff is roughly level with your heart.

Do not cross your legs or talk while the monitor is measuring.

• Keep your back supported
• Place both feet flat on the floor
• Rest your arm on a table
• Keep still and quiet

4. Position the Cuff Correctly

Place the cuff directly on your bare upper arm according to the monitor’s instructions. The lower edge of the cuff should generally sit slightly above the bend of your elbow.

Make sure the tubing is positioned correctly and the cuff is snug but not excessively tight.

• Place the cuff on bare skin
• Position it correctly above the elbow
• Keep the arm relaxed

5. Take Two Readings

Start the monitor and remain still while it measures your blood pressure. After the first reading, wait about one minute and take a second reading.

Record both readings rather than relying on a single measurement.

• Take the first reading
• Wait about one minute
• Take a second reading
• Record the results

6. Understand the Numbers

A blood pressure reading normally contains two numbers. The systolic number is the pressure when the heart contracts, while the diastolic number is the pressure when the heart relaxes between beats.

For example, a reading of 120/80 mmHg means a systolic pressure of 120 and a diastolic pressure of 80.

• Note the systolic number
• Note the diastolic number
• Record the date and time

7. Keep a Blood Pressure Record

Regular records can help you and a healthcare professional identify patterns. Try to measure your blood pressure at similar times and under similar conditions when monitoring it over several days.

Do not change prescribed medication based only on home readings without discussing it with a healthcare professional.

• Record each reading
• Include the date and time
• Note unusual circumstances
• Keep your records for medical appointments

8. Know When to Seek Urgent Help

If your blood pressure is 180/120 mmHg or higher, wait at least one minute and take another reading. If it remains that high, seek urgent medical advice. If a very high reading occurs together with symptoms such as chest pain, severe shortness of breath, weakness or numbness, difficulty speaking, vision changes, or severe headache, seek emergency medical care immediately.

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