Health Application
A doctor reports blood pressure in millimetres of mercury (mm Hg) as a ratio of systolic blood pressure to diastolic blood pressure (such as 140 over 80). Systolic pressure is measured when the heart beats, and diastolic pressure is measured when it rests. Refer to the table of blood pressure ranges for adults.

Manohar is a healthy 37 years old man whose blood pressure is in the normal category.
Calculate an approximate ratio of systolic to diastolic blood pressures in the normal range.

Health Application A doctor reports blood pressure in millimetres of mercury (mm Hg) as a ratio of systolic blood pressure to diastolic blood pressure (such as 140 over 80). Systolic pressure is measured when the heart beats, and diastolic pressure is measured when it rests. Refer to the table of blood pressure ranges for adults. Manohar is a healthy 37 years old man whose blood pressure is in the normal category. Calculate ratio of average systolic to average diastolic blood pressure in the prehypertension category.

Health Application A doctor reports blood pressure in millimetres of mercury (mm Hg) as a ratio of systolic blood pressure to diastolic blood pressure (such as 140 over 80). Systolic pressure is measured when the heart beats, and diastolic pressure is measured when it rests. Refer to the table of blood pressure ranges for adults. Manohar is a healthy 37 years old man whose blood pressure is in the normal category. If Manohar’s systolic blood pressure is 102 mm Hg, use the ratio from part (a) to predict his diastolic blood pressure.

Blood Pressure

Define blood pressure.

In a normal man blood pressure is :-

Blood pressure in the pulmonary artery is