Questions With Accurate
Answers
A 13-year-old female took a weight loss drug that activated the
sympathetic nervous system. Which of the following assessment
findings would the nurse expect?
a. Decreased myocardial contraction
b. Decreased heart rate
c. Increased cardiac conduction
d. Increased intranodal conduction time correct answer c. Increased
cardiac conduction
A 50-year-old female presents with a low heart rate and low blood
pressure. She is given an intravenous (IV) infusion of fluids. The
increase in atrial distension results in:
a. Renal retention of fluids
b. Depressed myocardial contractility
c. Release of acetylcholine
d. Increased heart rate correct answer d. Increased heart rate
,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 correct answer b. Sinoatrial (SA) node
A 65-year-old male develops blockage in the pulmonary artery. As a
result of the blockage, blood would first back up into the:
a. Aorta
b. Left ventricle
c. Pulmonary veins
d. Right ventricle correct answer d. Right ventricle
A consequence of alveolar hypoxia is:
a. Reactive vasodilation
b. Local bronchoconstriction
c. Decreased respiratory rate
,d. Pulmonary artery vasoconstriction correct answer d. Pulmonary
artery vasoconstriction
A diabetic patient is recovering from a myocardial infarction but does
not have symptoms of heart failure. The nurse will expect to teach this
patient about:
a. ACE inhibitors and beta blockers.
b. biventricular pacemakers.
c. dietary supplements and exercise.
d. diuretics and digoxin. correct answer a. ACE inhibitors and beta
blockers
A man asks a nurse why he cannot use digoxin (Lanoxin) for his heart
failure, because both of his parents used it for HF. The nurse will
explain that digoxin is not first-line therapy for which reason?
a. It causes tachycardia and increases the cardiac workload.
b. It does not correct the underlying pathology of heart failure.
c. It has a wide therapeutic range that makes dosing difficult.
d. It may actually shorten the patient's life expectancy. correct answer
b. It does not correct the underlying pathology of heart failure.
, Digoxin improves cardiac output, alters electrical effects, and helps to
decrease sympathetic outflow from the central nervous system (CNS)
through its neurohormonal effects; however, it does not alter the
underlying pathology of heart failure or prevent cardiac remodeling.
Digoxin causes bradycardia and increases the cardiac workload by
increasing contractility. It has a narrow therapeutic range and many
adverse effects. Digoxin does not improve life expectancy; in women it
may actually shorten life expectancy.
A nurse assesses the heart after acetylcholine because the effect of
acetylcholine on the heart is to
a. Decrease the refractory period
b. Increase calcium influx
c. Increase the strength of myocardial contraction
d. Decrease the heart rate correct answer d. Decrease the heart rate
A nurse is discussing heart failure with a group of nursing students.
Which statement by a student reflects an understanding of how
compensatory mechanisms can compound existing problems in
patients with heart failure?
a. "An increase in arteriolar tone to improve tissue perfusion can
decrease resistance."
b. "An increase in contractility to increase cardiac output can cause
pulmonary edema."