CVS 2

What is the Ejection Fraction of an athlete if he has a heart rate (HR) of 60 beats/min, a cardiac output (CO) of 4.8L and an end systolic volume (ESV) of 40 ml.

• 33%

• 80%

• 67%

• 40%

The mean arterial pressure (MAP) in a patient whose diastolic pressure is 66mmHg and systolic pressure is 102 mmHg is

• (102+66)/3

• 1/3 x 66 + 2/3 x 102

• 102 - 1/3 (102 - 66)

• 66 + 1/3 (102 - 66)

A patient has a blood pressure (BP) of 120/72 mmHg and his cardiac output (CO) is 4.8L/min. His total peripheral resistance (in mmHg).min/l) would be

• 10.0

• 18.3

• 9.4

• 4.8

If the systolic BP is increased by 20 mmHg while the diastolic BP is increased by 15 mmHg, by how much would the mean arterial pressure change

• 10 mmHg

• 30 mmHg

• 25 mmHg

• 20 mmHg

AT a Cardiac Function Lab a patient is found to have the following:

Heart Rate: 70 beats.min, End-diastolic volume: 140 ml, End-systolic volume: 60 ml, Blood Pressure: 120/80 mmHg. The patient's Mean Arterial pressure (mmHg) is:

• 93

• 87

• 60

• 106.7

The patient has a Heart rate of 70 beats/min, End-diastolic volume of 140 ml, end-systolic volume of 60 ml and a BP of 120/80 mmHg. His Total Peripheral resistance (TPR) is (in mmHg.min/L)

• 0.2

• 5.0

• 16.6

• 60.2

The duration of the PR interval in the ECG tracing is

• 0.12 sec

• 0.16 sec

• 0.20 sec

• 0.28 sec

The Heart Rate in the ECG tracing would be (in beats/min)

• 150

• 100

• 125

• 75

The mean electrical axis for the ECG tracing is:

• Normal

• An example of Right axis deviation

• An example of left axis deviation

• An example of extreme axis deviation (i.e. No Man's Land)