How to Measure Blood Pressure Correctly

This part is critical—how to measure blood pressure properly. Recent updates have introduced significant changes to the way high blood pressure is diagnosed and monitored.

Outdated Methods Are No Longer Recommended

Previously, high blood pressure was diagnosed through at least three measurements taken at a doctor’s office. However, this method has been removed from the guidelines due to its unreliability. Many individuals experience “white coat hypertension”, where their blood pressure is falsely elevated in a clinical setting due to stress or anxiety.

Now, the recommended approach is home blood pressure monitoring or 24-hour ambulatory blood pressure monitoring performed by a doctor.

1. Home Blood Pressure Monitoring

Home monitoring is a crucial part of diagnosing and managing hypertension. Proper technique is essential for accurate readings.

Follow these best practices on how to measure blood pressure at home:

• Use a validated upper-arm blood pressure monitor.
• Ensure your device has been recently calibrated (devices older than 2-3 years can become unreliable).
• Avoid wrist monitors and smartphone apps, as they are not considered accurate.
• Take multiple readings for the most reliable results.
• Follow these steps when measuring:
  
  • Empty your bladder beforehand.
  • Sit comfortably with both feet flat on the floor.
  • Avoid talking or moving during the measurement.
  • Record both systolic and diastolic numbers—they are equally important.

2. 24-Hour Ambulatory Blood Pressure Monitoring

For the most precise diagnosis, doctors may use 24-hour ambulatory blood pressure monitoring. This method involves wearing a cuffed device that takes readings every 10-15 minutes throughout the day and night.

This is considered the gold standard for diagnosing high blood pressure. It provides a complete picture of your blood pressure fluctuations over 24 hours, capturing variations that might be missed during a single reading at a doctor’s office.

The Bottom Line

If you want to take control of your blood pressure, home monitoring is essential. If you don’t own a blood pressure monitor, invest in a validated device. If you already have one, ensure it is not too old and has been recently calibrated.

Knowing how to measure blood pressure correctly is the key to early detection and prevention of hypertension-related complications. Get measuring and stay healthy!