-While emphasis is placed on using correct technique and a validated
sphygmomanometer to ensure accurate readings, end digit preference is an underreported yet clinically meaningful error. Even in research studies where researchers are educated on this bias, it persists.
-Use of electronic BP machines reduces this practice and therefore offers an important advantage over manual devices.
-As noted in fig 2, rounding a reading of 142 to 140 mm Hg or 147 to 150 mm Hg results in marked differences in control rates.
-In summary, precision matters. Directly record an electronic value. With manual methods, deflate at a rate of 2 mm Hg / second to ensure a clear-cut reading.