Question

Question 116 (i)

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 yr old man whose blood pressure is in the normal category.
Calculate an approximate ratio of systolic to diastolic blood pressures in the normal range.

Answer 1

Systolic blood pressure In the normal range = 120 mm Hg
Diastolic blood pressure in the normal range = 80 mm Hg
Approximate ratio of systdicio diastolic blood pressure $\frac{Systolicbloodpressureinnormalrange}{DiastolicbloodpressureInnormalrange}=\frac{120}{80}=\frac{3}{2}$ [dividing numerator and denominator by 40]
Hence, approximate ratio is 3:2.