Did you know not all blood pressure monitors are accurate? Accurate blood pressure measurements are essential for diagnosing and managing hypertension but inaccurate measurements can lead to misdiagnosis which could affect your health in several ways. This article will delve over reasons why not all blood pressure monitors are created equal as far as accuracy and how to find a monitor that works for you.
Reasons Why Not All Blood Pressure Monitors Are Accurate
The Type of Monitor
Wrist monitors are generally less accurate than upper arm monitors. There are some wrist blood pressure monitors that have been validated and can be accurate if used exactly as directed and checked against measurements taken in your provider's office. But the American Heart Association recommends using a cuff-size, upper-arm monitor whenever available.Age of Monitor
Wear and tear and battery depletion over time can cause inaccurate readings.
Is the Monitor Clinically-Validated?
Certain monitors have not been tested for accuracy. According to Harvard Health, up to 85–94% of blood pressure monitors may not be validated.
What is a Validated Blood Pressure Monitor?
A validated blood pressure monitor is a device that has been clinically validated for accuracy through an independent review process and not through the company that makes the product.
Clinical validation ensures accuracy. The device is considered validated if it meets or exceeds the requirements of a scientifically accepted parameter. A validated blood pressure monitor is especially important when choosing one for a senior, person who is pregnant, or child.
How to Choose a Validated Blood Pressure Monitor
You can find different options of validated Blood Pressure Monitors at validatebp.org.
Keep in mind: even with a validated BP monitor, it can still produce inaccurate readings if these steps are not followed:
-Avoid smoking, caffeinated beverages, or exercise 30 minutes before taking your blood pressure.
-Empty your bladder.
-Rest for at least five minutes.
-Sitting position: Sit with your back supported against a chair or wall. Your feet should be flat on the floor. The legs are uncrossed. Arms should be at heart level, such as on a dining room table.
-The monitor should be placed on the appropriate location, typically the upper arm. Check your monitor's instructions or ask your medical professional for instructions if you are unsure.
-There should be no talking or moving during the measurement.
-Take the measurement on the bare arm. Remove clothing over the arm that will be used to measure blood pressure.
Check out our selection of validated blood pressure monitors available to meet your needs.
References
1. American Heart Association (2024). Home Blood Pressure Monitoring. American Heart Association.
2. Godman, Heidi (2023). Is Your Blood Pressure Monitor Accurate? Harvard Health.