How should BP be measured in a patient with arrhythmia?

• A. Take one reading with an oscillometric device only.
• B. Take multiple readings (often more than two), use auscultatory method when possible, and consider ambulatory monitoring.
• C. Use only the arm with arrhythmia for a single reading.
• D. Use manual palpation instead of auscultation.

Answer: (B)

When a patient has an arrhythmia, the heartbeat is irregular, so blood pressure can vary from beat to beat and automated devices may misread the pressures. To get an accurate measurement, take multiple readings (often more than two) and average them. If possible, use the auscultatory method with a calibrated sphygmomanometer and stethoscope, because listening for Korotkoff sounds provides a direct, beat-to-beat assessment that tends to be more reliable in irregular rhythms than some automated sensors. If readings remain inconsistent or you need a fuller picture, consider ambulatory blood pressure monitoring or home BP monitoring to track pressures over time, including daytime and nighttime patterns. Use proper technique: patient seated with back supported, feet uncrossed and flat, arm at heart level, correct cuff size, and rest before measurements; take several readings spaced about 1–2 minutes apart and average them.