What is a common reason for inconsistent BP readings across visits?

• A. Fluctuations in room temperature
• B. Inconsistent technique or cuff size
• C. Patient age variation
• D. Differences in diet before each measurement

Answer: (B)

Inconsistent blood pressure readings across visits mostly come from how the measurement is performed and the cuff that’s used. BP is highly sensitive to procedural details, so if the cuff is too small or too large, or if it isn’t placed correctly, or if the patient isn’t seated properly with the arm at heart level, the readings can vary a lot from visit to visit. Standardizing technique and using the correct cuff size for each patient minimizes these fluctuations and yields more reliable results.

Other factors can affect BP momentarily—room temperature, recent activity, caffeine or nicotine use, or how long the patient rested—but they’re less likely to drive the kind of cross-visit variability you get from inconsistent technique or cuff sizing. Age doesn’t change between visits, and while diet can influence BP, it’s not the main source of repeated measurement variability.