‘’Blood pressure is a measure of the force that your heart uses to pump blood around your body. Blood pressure is measured in millimetres of mercury (mmHg) and is given in two figures: systolic pressure and diastolic pressure’’. (www.nhs.uk/blood pressure).
‘’Systolic blood pressure is each heartbeat cycle when the heart contracts causing a peak in arterial blood pressure called systolic pressure’’ (Walker, R. 2002).
The heart pumps blood round a complex route of many vessels. This brings about a resistance and generates pressures within the system. This pressure in the blood is high when the left ventricle is contracting and working and it reduces when it is at rest. The pressure is high also when blood is pumped into the artery to be distributed all over the body. Blood
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According to Clegg, ‘’In a healthy adult, the pressure in the arteries close to the heart is highest (120 millimetre (mm) of mercury (Hg) when the ventricle are contracting, which is known as the systolic blood pressure, and lowest (8o mm Hg) when the ventricles are relaxing, which is known as the diastolic blood pressure’’ (Clegg, 1995). Also, the American Heart Association sees anyone in the range of 120/80 mmHg blood pressure as normal (www.healthline.com).
A clinician recording of a 46 years old male patents in the test 1, is 140/ 90 mmHg. The upper figure of 140 is the systolic blood pressure. The reading shows that the pressure of the blood in the patient arteries when the heart is contracting is slightly higher than normal, which means that this patients has a pre-high high blood pressure. The diastolic blood pressure is the bottom figure which is 90 in the reading of