Before measuring
An unvalidated device, wrong cuff size or poor technique can mislead. A single reading should not drive medication changes, and very high readings with concerning symptoms require urgent medical guidance.
An automated upper-arm cuff estimates systolic and diastolic pressure from cuff oscillations. Validation, cuff size, posture, rest and repeated measurements determine whether the result is useful.
Purpose, evidence and practical considerations.
An unvalidated device, wrong cuff size or poor technique can mislead. A single reading should not drive medication changes, and very high readings with concerning symptoms require urgent medical guidance.