Translations:Adventist Youth Honors Answer Book/Health and Science/Heart and Circulation/8/en
From Pathfinder Wiki
To detect it at the wrist, again place the fingers side-by-side on the smooth side of the wrist a few centimeters
below the thumb. Do not use the thumb to take the pulse, as the pulse can be detected in the thumb itself which can interfere with the pulse one is attempting to measure.
