MODEL RELEASED. Blood pressure measurement. Doctor takes the blood pressure of a woman. He uses an instrument called a sphygmomanometer. It consists of a cuff with pressure gauge which is inflated around the patient's upper arm until it is tight enough to stop blood flow in a main artery. Slowly deflating the cuff the pressure is recorded as the systolic pressure of the pumping heart; further cuff deflation gives the diastolic pressure of the relaxed heart between pumps. Blood pressure is then expressed as a difference between these two measurements,in millimetres of mercury (mm Hg). Although blood pressure varies over the day,it is an important measure of bodily health | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / CC Studio |
Taille de l’image : | 3543 px × 3518 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |