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 - Answer--d. Right ventricle
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--c. Left ventricle
A nurse recalls the chamber that receives blood from the systemic circulation is the:
a. Right atrium
b. Right ventricle
c. Left atrium
d. Left ventricle - Answer--a. Right atrium
,Which statement indicates the nurse understands blood flow? Oxygenated blood flows through the:
a. Superior vena cava
b. Pulmonary veins
c. Pulmonary artery
d. Cardiac veins - Answer--b. Pulmonary veins
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--c. Left anterior descending
When a staff member asks where venous blood from the coronary circulation drains into, what is the
best response by the nurse? The:
a. Superior vena cava
b. Inferior vena cava
c. Right atrium
d. Reft atrium - Answer--c. Right atrium
While viewing the electrocardiogram, the nurse recalls the _____ conducts action potentials down the
atrioventricular septum.
, a. Bachmann bundle
b. Bundle of His
c. Sinoatrial node
d. Atrioventricular node - Answer--b. Bundle of His
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 - Answer--c. Increased cardiac conduction
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--b. Sinoatrial (SA) node
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