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Home > All Images > 1988 > November > 16 Nov 1988

Images Dated 16th November 1988

Choose from 11 pictures in our Images Dated 16th November 1988 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Blood pressure test Featured 16 Nov 1988 Print

Blood pressure test

Illustration of blood pressure measurement. Blood pressure is a measurement of the pressure that blood exerts against the walls of the main arteries and is quoted in millimetres of mercury (mmHg). Measurements are made when the heart is contracting (the systolic pressure) and during relaxation (the diastolic pressure); results are presented as the systolic over the diastolic pressure. A typical value for a normal, young adult might be 120/80 mmHg. Here, a massive systolic pressure of 240mmHg is displayed on the sphygmomanometer. Abnormally high blood pressure (hypertension) is a serious medical condition with a variety of underlying causes

© DAVID GIFFORD/SCIENCE PHOTO LIBRARY