Hypertension

Most online blood pressure images get it wrong, study finds

September 12, 2025

Study details: This cross-sectional analysis evaluated 1,106 BP measurement images from 11 major stock photo websites. Two independent reviewers assessed each image for adherence to the 2023 International Consensus on Standardized Clinic BP Measurement, focusing on visible technique elements such as patient posture, device type, and observer behavior.

Results: Only 14% of images met all guideline criteria. Common errors included unsupported back (73%), forearm not resting (55%), use of manual rather than electronic devices (52%), feet not flat (36%), and talking/laughing during measurement (23%). Accuracy was lower in clinical settings compared with home settings (8% vs. 25%; P<0.001), and images featuring healthcare providers were less accurate than those with patients self-measuring (7% vs. 35%; P<0.001).

Clinical impact: The widespread inaccuracy of online images may contribute to public misunderstanding and improper home or clinical BP measurement, potentially affecting hypertension management. Physicians should proactively educate patients on proper BP measurement and advocate for accurate visual resources in public health materials.

Source:

Aminde LN, et al. (2025, September 8). Hypertension. Poor Accuracy of Blood Pressure Measurement Images Online: Implications for Public Health Education. https://pubmed.ncbi.nlm.nih.gov/40920910/