Which practice helps mitigate inconsistent BP readings across visits?

• A. Use random measurement times
• B. Standardize the protocol, use the same arm, and ensure proper cuff size
• C. Change cuffs and protocols at random
• D. Measure only once per visit without rest

Answer: (C)

Consistent technique across visits reduces the biggest sources of variability in blood pressure readings. By standardizing how you measure—following the same steps every time—you limit differences that come from the method itself. Using the same arm for each reading avoids inter-arm differences, and making sure the cuff fits properly prevents systematic bias from cuffs that are too small (which overestimate) or too large (which underestimate). If measurement times are random, cuffs and protocols change unpredictably, or you measure only once with no rest, readings can drift from visit to visit even if the true BP hasn’t changed. So, the best practice is to standardize the protocol, use the same arm, and ensure proper cuff size.