Repeat BP measurement to confirm the accuracy and diagnosis of hypertension
It is important to remember that blood pressure can vary throughout the day, and a single elevated blood pressure may not indicate that the patient has hypertension. Repeat measurements and evaluation are essential to confirm a diagnosis and determine appropriate treatment strategies. To diagnose hypertension, two or more blood pressure readings at separate medical appointments are needed. After new measurement, diagnose or assess control and initiate treatment per your established protocol. Also, consider prescribing SMBP (Self-Measured Blood Pressure) monitoring to confirm diagnosis and aid in achieving BP control. Consider following these steps as guidance to repeating measurements:
- Take two or more blood pressure measurements at separate appointments. This allows for any fluctuations to stabilize.
- Ensure consistent measurement techniques throughout each reading. Use the same arm and maintain proper patient positioning. Refer back to the previous section as needed.
- Record each blood pressure measurement accurately, including date, time, and patient's position. Document any specific circumstances (recent physical activity, caffeine intake or stress) which may affect the readings.
- Compare the average blood pressure measurement to established diagnostic criteria for hypertension. The guidelines may differ depending on factors such as age, presence of comorbidities, and additional risk factors.
Links:
Target: BP; Selecting a cuff size
Target: BP; Using a wrist cuff to measure blood pressure
AMA guide to blood pressure competency program