Cardiovascular Physiology Quiz Spring 16
1. A 70-year-old man is suffering from congestive heart failure. He has a
cardiac output of 4.0 L/min, arterial pressure of 115/85, and a heart
rate of 90 bpm. Further tests by a cardiologist reveal that the patient
has a right atrial pressure of +10 mmHg. An increase in which of the
following would be expected in this patient?
A. Plasma colloid osmotic pressure
B. Interstitial colloid osmotic pressure
C. Arterial pressure
D.Cardiac output
E. Vena cava hydrostatic pressure
2. A 35-year-old male was admitted to the emergency room following an
automobile accident, and the following EKG was taken. The heart rate
in beats per minute is expected to be:
A.
B.
C.
D.
E.
30
68
90
110
150
3. Paradoxical splitting of S2 in a 60-year- old male is most likely due to
which of the following?
A.
B.
C.
D.
E.
Aortic valve stenosis
Atrial septal defect
Tricuspid stenosis
Mitral stenosis
Pulmonary hypertension
4. According to Law of laplace, wall stress in the ventricle is directly
proportional to:
A. Thickness of the wall
B.
C.
D.
E.
Flow of blood through aorta
Radius of the ventricular cavity
Systemic vascular resistance
Viscosity
5. Which of the following occurs in orthostatic hypotension:
A.
B.
C.
D.
E.
Generalized sympathetic stimulation
Increase in cardiac output
Increased venous return
Central Venous Pressure decreases
Increased blood flow to the brain
6. Dicrotic notch in the aortic pressure curve occurs due to:
A.
B.
C.
D.
E.
Aortic stenosis
Increased sympathetic discharge constricting the aorta
Elastic recoil of aorta after the closure of aortic valve
Presence of patent ductus arteriosus
Increased stroke volume
7. In the Pressure - Volume curve given below, the black curve (A)
indicates normal resting cardiac function. Which of the following will
result in changes depicted by the red curve (B)?
A.
B.
C.
D.
E.
Increased sympathetic stimulation
Aortic valve stenosis
Increased venous return
Onset of acute exercise
Congestive heart failure
8. During which phase of the cardiac cycle does the mitral valve begin
to open?
A.
B.
C.
D.
Atrial systole
Rapid Ventricular ejection
Phase of late diastole
Isovolumetric ventricular relaxation
9. While auscultating your patient's heart you hear a systolic murmur.
What is the likely cause of the murmur?
A.
B.
C.
D.
Aortic Regurgitation
Mitral stenosis
Mitral regurgitation
Tricuspid stenosis
10.
A 65-year-old male presents with a heart murmur. He is found to
have cardiac enlargement on chest x-ray. There is no evidence of
pulmonary edema. The mean QRS axis of his EKG is +160 degrees.
What is the likely cause of this shift?
A.
B.
C.
D.
E.
Mitral stenosis
Aortic stenosis
Pulmonary valve stenosis
Triscuspid valve stenosis
Mitral regurgitation
11.
A cardiovascular function curve is shown below. What is the
Mean systemic filling pressure at point E.
A.
B.
C.
D.
E.
11
12
14
15
16
12.
A.
B.
C.
D.
E.
Ischemic heart disease
Myocardial Infarction
Bundle branch block
Long QTc syndrome
Premature Ventricular contraction
13.
A.
B.
C.
D.
E.
The change depicted in the following EKG is classical of:
The EKG shown below shows classical changes seen in:
Acute Myocardial Infarction
Acute Ischemia
Ventricular fibrillation
Atrial fibrillation
AV block
14.
The EKG shown below shows classical changes seen in:
A.
B.
C.
D.
E.
Acute M yocardial Infarction
Ventriculat tachycardia
Ventricular fibrillation
Atrial fibrillation
AV block
15.
A 30-year-old female comes to the hospital with chest
discomfort. Her EKG is recorded. What is the most likely
interpretation of her EKG recording:
A.
B.
C.
D.
E.
Acute M yocardial Infarction
Ventricular fibrillation
Atrial fibrillation
AV block
Sinus tachycardia
Answers on Thursday. Good luck!
