2026 COMPLETE QUESTIONS AND ANSWERS
◉ After activation of the Bainbridge reflex in a patient, the nurse
assesses for:
A. Increased heart rate
B. Decreased blood pressure
C. Increased rate and depth of respirations
D. Decreased myocardial contractility. Answer: Increased heart rate
◉ Which principle should the nurse remember while planning care
for a
cardiac patient? Pressure in the left ventricle must exceed pressure
in
the _____ before the left ventricle can eject blood.
A. Coronary arteries
B. Aorta
C. Inferior vena cava
D. Pulmonary veins. Answer: Aorta
,◉ A 50-year-old female received trauma to the chest that caused
severe
impairment of the primary pacemaker cells of the heart. Which of
the
following areas received the greatest damage?
A. Atrioventricular (AV) node
B. Sinoatrial (SA) node
C. Bundle of His
D. Ventricles. Answer: Sinoatrial (SA) node
◉ The nurse is planning care for a patient with heart problems.
Which
information should the nurse remember? The _____ artery travels
down the
interventricular septum and delivers blood to portions of the left
and
right ventricle.
A. Right coronary
B. Circumflex
C. Left anterior descending
D. Cardiac. Answer: Left anterior descending
,◉ A nurse is teaching about the heart. Which information should the
nurse include? The chamber of the heart that generates the highest
pressure is the:
A. Right atrium
B. Left atrium
C. Left ventricle
D. Right ventricle. Answer: Left ventricle
◉ A nurse is discussing the different types of regulation. Which
regulation is the nurse describing? Local myogenic regulation of
blood vessel diameter and thus blood flow through a vessel is an
example of:
A. Autonomic regulation
B. Somatic regulation
C. Autoregulation
D. Metabolic regulation. Answer: Autoregulation
◉ Which information by the nurse indicates a good understanding
of depolarization? Depolarization of a cardiac muscle cell occurs as
the result of:
, A. A decrease in the permeability of the cell membrane to ions
B. The rapid movement of ions across the cell membrane
C. A blockade by calcium ions
D. Stimuli instigated during the refractory period. Answer: A
decrease in the permeability of the cell membrane to ions
◉ A new drug is released to aid in weight loss. It stimulates the
sympathetic system. The nurse monitors for an increased heart rate.
The sympathetic system causes this by:
A. Inhibiting the release of catecholamines
B. Altering the threshold potential
C. Decreasing the conduction time through the atrioventricular (AV)
node
D. Increasing the influx of calcium. Answer: Altering the threshold
potential
◉ A 54-year-old male is diagnosed with left bundle branch block.
Which of the following structures would not receive an electrical
impulse?
A. Atrioventricular (AV) node
B. Sinoatrial (SA) node
C. Bundle of His