Calculations

Question 1

Define mean arterial pressure

Answer 1

Average blood pressure in the arteries

= diastolic BP + 1/3(systolic - diastolic)

Question 2

Define Cardiac Output

Answer 2

The volume of blood pumped from the heart in one minute

= Stroke volume (End Diastolic - End Systolic) x bpm

Question 3

Define tidal volume

Answer 3

Volume of air inspired and expired with each breath

Question 4

Define pulmonary ventilation

Answer 4

Tidal volume x ventilation rate

The total exchange of air between the lungs and the ambient air, usually in liters per minute.

Question 5

Define minute ventilation

Answer 5

Volume of air for a minute = breaths/min x mL in breath

Tital volume x breaths in a minute

Question 6

Define total lung capacity

Answer 6

Total amount of air contained within the lungs

RV + ERV + TV + IRV

Question 7

Define vital capacity

Answer 7

Volume of air that can be moved in/out in a single breath

TV + IRV + ERV

Question 8

Define functional residual capacity

Answer 8

Volume of air remaining after a normal expiration

RV + ERV

Question 9

Inspiratory capacity

Answer 9

Volume of air that can be inspired after a normal expiration

TV + IRV

Question 10

Define residual volume

Answer 10

Volume of air remaining after a forced inspiration

Question 11

Define expiratory reserve volume

Answer 11

Volume of air that can be forcefully expired after a normal tidal expiration

Question 12

Define inspiratory reserve volume

Answer 12

Volume of air that can be forcefully inspired after a normal tidal inspiration