Improper Arm Positioning in Blood Pressure Tests May Lead to Millions of Misdiagnoses

A Johns Hopkins study reveals that incorrect arm placement can significantly inflate blood pressure readings, potentially affecting millions of Americans.

The study found that improper arm positioning during blood pressure measurements could misclassify 16% to 22% of U.S. adults as hypertensive.
Blood pressure readings with the arm unsupported or resting on the lap can overestimate systolic pressure by up to 7 mmHg and diastolic by 4.4 mmHg.
Researchers emphasize the importance of supporting the arm on a desk or table at heart level for accurate measurements.
The findings highlight the need for standardized blood pressure measurement techniques in both clinical and home settings.
Healthcare providers and patients are encouraged to adhere to best practices to prevent unnecessary hypertension diagnoses and treatments.