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- 1. Multiple ChoiceCardiac output increases during exercise.TrueFalse
- 2. Multiple ChoiceA person who has lost 500 ml of blood will have a higher preload compared to a person with normal blood volume.TrueFalse
- 3. Multiple Choice
The term afterload is defined as
volume of blood in the ventricles
volume of blood in the atria during diastole
resistance to blood flow out of the ventricle during systole
pressure of left ventricle during diastole
- 4. Multiple Choice
Cardiac output is affected by
age/ gender/ body size
oxygen demand of body
viscosity of blood
- 5. Multiple Choice
Which of the following causes an increase in cardiac output?
Increase in contractility and decreased in preload
increase in afterload
increase in both contractility and preload
increased in preload and decrease in contractility
- 6. Multiple Choice
Calculate the Cardiac output
SV= 70 ml/beat
HR = 75 beats/min
5 L/min
5.25 L/min
5.5 L/min
5.35 L/min
- 7. Multiple Choice
Conditions that reduce cardiac output include
eating
heart disease
standing from lying position
adrenaline
- 8. Multiple Choice
Where does the blood flow due to gravity?
upper extremities to superior vena cava
upper extremities to inferior vena cava
upper extremities to pulmonary artery
upper extremities to pulmonary vein
- 9. Multiple Choice
The most important force in venous flow is
cardiac suction
the pressure generated by the heart.
the skeletal muscle pump.
the thoracic (respiratory) pump.
one way flow due to valves.
- 10. Multiple Choice
If heart rate increases to 180 beats/min (which is very fast) from the original 70 beats/min and stroke volume remains 70mL/beat the cardiac output increases from 4.9L/min to
12,600 mL/minute
12.6 L/min
13 mL/sec
13 mL/hr
- 11. Multiple Choice
Calculate the CO with the following:
HR = 120 bpm
SV = 140 mL/beats
16,800 mL/min
16,800 L/sec
16,800 mL/hr
16,800 L/day
- 12. Multiple Choice
Using the formulas for stroke volume, SV = EDV – ESV, and ejection fraction, EF = SV/EDV x 100%,
End-diastolic volume = 160 mL
End-systolic volume = 80 mL
What is the SV?
50 mL
60 mL
70 mL
80 mL
- 13. Multiple Choice
Using the formulas for stroke volume, SV = EDV – ESV, and ejection fraction, EF = SV/EDV x 100%,
End-diastolic volume = 160 mL
End-systolic volume = 80 mL
What is the Ejection fraction?
25%
50%
75%
100%
- 14. Multiple Choice
Using the formulas for stroke volume, SV = EDV – ESV, and ejection fraction, EF = SV/EDV x 100%,
End-diastolic volume = 100 mL
End-systolic volume = 50 mL
What is the SV?
30mL
40mL
50mL
60mL
- 15. Multiple Choice
Using the formulas for stroke volume, SV = EDV – ESV, and ejection fraction, EF = SV/EDV x 100%,
End-diastolic volume = 100 mL
End-systolic volume = 50 mL
What is the EF?
45%
50%
55%
60%
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