The optimal method for measuring blood pressure, as used in the SPRINT trial, involves a quiet, relaxed environment and multiple readings, which may yield lower numbers than typical clinical measurements.

“what they did was they had people in a quiet room they had an automated cuff one of the sort of standard you know sort of um Best in Class at that time automated cuff they put the cuff on the person they had them s seated and relaxed in a quiet room by themselves and they had the blood pressure measured three times 5 minutes in between right so total of once 5 minute break one more five minute break and once more and they took the average of those blood pressures”