PNP301 TEST 3 PRACTICE QUESTIONS AND ANSWERS
MaintainS CO when SV decreases - CORRECT ANSWER✅✅increased HR
Causes AV nodes to close - CORRECT ANSWER✅✅increased intraventricular pressure
"It is a potential space containing a very small amount of serous fluid." - CORRECT
ANSWER✅✅pericardial cavity
Which of the following factors greatly improves venous return to the heart during strenuous exercise?
a. Rapid emptying of the right side of the heart
b. Forceful action of the valves in the veins
c. Contraction and relaxation of skeletal muscle
d. Peristalsis in the large veins - CORRECT ANSWER✅✅C. contraction & relaxation of Sk. muscle
"signal the cardiovascular control center of changes in systemic blood pressure." - CORRECT
ANSWER✅✅Baroreceptors
The normal delay in conduction through the AV node is essential for__________ - CORRECT
ANSWER✅✅completing ventricular filling
Which of the following is a result of increased secretion of epinephrine?
a. Increased heart rate and force of contraction
b. Decreased stimulation of the SA node and ventricles
c. Vasoconstriction in skeletal muscles and kidneys
d. Vasodilation of cutaneous blood vessels - CORRECT ANSWER✅✅A. increased HR + force of
contraction
Which of the following causes increased heart rate?
a. Stimulation of the vagus nerve
, b. Increased renin secretion
c. Administration of beta-blocking drugs
d. Stimulation of the sympathetic nervous system - CORRECT ANSWER✅✅D. stimulation of the SNS
causes the QRS wave on an electrocardiogram (ECG) - CORRECT ANSWER✅✅Ventricular DEpolarization
The cardiac reserve is? - CORRECT ANSWER✅✅the ability of the heart to increase cardiac output when
needed
what is "Preload"? - CORRECT ANSWER✅✅volume of venous return
what is "Cardiac output"? - CORRECT ANSWER✅✅Volume of blood ejected by a ventricle in one minute
Which of the following is most likely to cause left-sided congestive heart failure?
a. Incompetent tricuspid heart valve
b. Chronic pulmonary disease
c. Infarction in the right atrium
d. Uncontrolled essential hypertension - CORRECT ANSWER✅✅D. uncontrolled essential HTN
definition of Congestive heart failure? - CORRECT ANSWER✅✅the inability of the heart to pump
enough blood to meet the metabolic demands of the body.
The classic early manifestation(s) of left-sided congestive heart failure is/are ____, whereas the early
indicator(s) of right-sided failure is/are _______.
a. palpitations and periodic chest pain; shortness of breath on exertion
b. swelling of the ankles and abdomen; chest pain
c. shortness of breath on exertion or lying down; swelling of the ankles
d. coughing up frothy sputum; hepatomegaly and splenomegaly - CORRECT ANSWER✅✅C. SOB on
exertion/lying down (L); Swelling of ankles (R)
MaintainS CO when SV decreases - CORRECT ANSWER✅✅increased HR
Causes AV nodes to close - CORRECT ANSWER✅✅increased intraventricular pressure
"It is a potential space containing a very small amount of serous fluid." - CORRECT
ANSWER✅✅pericardial cavity
Which of the following factors greatly improves venous return to the heart during strenuous exercise?
a. Rapid emptying of the right side of the heart
b. Forceful action of the valves in the veins
c. Contraction and relaxation of skeletal muscle
d. Peristalsis in the large veins - CORRECT ANSWER✅✅C. contraction & relaxation of Sk. muscle
"signal the cardiovascular control center of changes in systemic blood pressure." - CORRECT
ANSWER✅✅Baroreceptors
The normal delay in conduction through the AV node is essential for__________ - CORRECT
ANSWER✅✅completing ventricular filling
Which of the following is a result of increased secretion of epinephrine?
a. Increased heart rate and force of contraction
b. Decreased stimulation of the SA node and ventricles
c. Vasoconstriction in skeletal muscles and kidneys
d. Vasodilation of cutaneous blood vessels - CORRECT ANSWER✅✅A. increased HR + force of
contraction
Which of the following causes increased heart rate?
a. Stimulation of the vagus nerve
, b. Increased renin secretion
c. Administration of beta-blocking drugs
d. Stimulation of the sympathetic nervous system - CORRECT ANSWER✅✅D. stimulation of the SNS
causes the QRS wave on an electrocardiogram (ECG) - CORRECT ANSWER✅✅Ventricular DEpolarization
The cardiac reserve is? - CORRECT ANSWER✅✅the ability of the heart to increase cardiac output when
needed
what is "Preload"? - CORRECT ANSWER✅✅volume of venous return
what is "Cardiac output"? - CORRECT ANSWER✅✅Volume of blood ejected by a ventricle in one minute
Which of the following is most likely to cause left-sided congestive heart failure?
a. Incompetent tricuspid heart valve
b. Chronic pulmonary disease
c. Infarction in the right atrium
d. Uncontrolled essential hypertension - CORRECT ANSWER✅✅D. uncontrolled essential HTN
definition of Congestive heart failure? - CORRECT ANSWER✅✅the inability of the heart to pump
enough blood to meet the metabolic demands of the body.
The classic early manifestation(s) of left-sided congestive heart failure is/are ____, whereas the early
indicator(s) of right-sided failure is/are _______.
a. palpitations and periodic chest pain; shortness of breath on exertion
b. swelling of the ankles and abdomen; chest pain
c. shortness of breath on exertion or lying down; swelling of the ankles
d. coughing up frothy sputum; hepatomegaly and splenomegaly - CORRECT ANSWER✅✅C. SOB on
exertion/lying down (L); Swelling of ankles (R)
