NU551 Unit 6 Purdue University Global | UPDATED Questions with
100% Verified Answers
Question:
A 65-year-old male is transported to the ER for chest pain. An
electrocardiogram reveals a prolonged QRS interval. What is
the nurse monitoring when the nurse observes the QRS
complex on the electrocardiogram? The QRS complex
reflects:
a. Pulmonary artery closure
b. Mitral valve opening
c. Aortic valve closing
d. Ventricular activity
Answer:
d. VENTRICULAR ACTIVITY
Question:
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. Left anterior descending
b. Right coronary
c. Circumflex
d. Cardiac
Answer:
a. LEFT ANTERIOR DESCENDING
Question:
While viewing the electrocardiogram, the nurse recalls the _____
conducts action potentials down the atrioventricular septum.
a. Bundle of His
b. Atrioventricular node
c. Sinoatrial node
,d. Bachmann bundle
Answer:
a. BUNDLE OF HIS
Question:
When a student nurse asks the nurse how the cardiac
electrical impulse normally begins, what is the most correct
response? The cardiac electrical impulse normally begins
spontaneously in the sinoatrial (SA) node because it:
a. Has rich sympathetic innervation via the vagus nerve
b. Depolarizes more rapidly than other automatic cells of the
heart
c. Has a superior location in the right atrium
d. Is the only area of the heart capable of spontaneous
depolarization
Answer:
b. DEPOLARIZES MORE RAPIDLY THAN OTHER AUTOMATIC CELLS OF HEART
Question:
A 54-year-old male is diagnosed with left bundle branch
block. Which of the following structures would not receive an
electrical impulse?
a. The left ventricle
b. Bundle of His
c. Atrioventricular (AV) node d. Sinoatrial (SA) node
Answer:
a. THE LEFT VENTRICLE
Question:
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. Increased intranodal conduction time
, b. Increased cardiac conduction
c. Decreased heart rate
d. Decreased myocardial contraction
Answer:
b. INCREASED CARDIAC CONDUCTION
Question:
The chamber of the heart that generates the highest pressure
is the:
a. Right atrium
b. Left atrium
c. Right ventricle
d. Left ventricle
Answer:
d. LEFT VENTRICLE
Question:
A 28-year-old female with seizure disorder has a vagus nerve
stimulator implanted to help control seizure activity. Which of
the following would the nurse also expect to occur?
a. Increased speed of cardiac cycle
b. Decreased cardiac conduction
c. Increased cardiac contractility
d. Decreased vasodilation
Answer:
b. DECREASED CARDIAC CONDUCTION
Question:
The nurse is reviewing a normal electrocardiogram. The nurse
assesses the PR interval because it represents:
a. "Electrical systole" of the ventricles
b. Onset of atrial activation to onset of ventricular activity
c. Ventricular depolarization
100% Verified Answers
Question:
A 65-year-old male is transported to the ER for chest pain. An
electrocardiogram reveals a prolonged QRS interval. What is
the nurse monitoring when the nurse observes the QRS
complex on the electrocardiogram? The QRS complex
reflects:
a. Pulmonary artery closure
b. Mitral valve opening
c. Aortic valve closing
d. Ventricular activity
Answer:
d. VENTRICULAR ACTIVITY
Question:
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. Left anterior descending
b. Right coronary
c. Circumflex
d. Cardiac
Answer:
a. LEFT ANTERIOR DESCENDING
Question:
While viewing the electrocardiogram, the nurse recalls the _____
conducts action potentials down the atrioventricular septum.
a. Bundle of His
b. Atrioventricular node
c. Sinoatrial node
,d. Bachmann bundle
Answer:
a. BUNDLE OF HIS
Question:
When a student nurse asks the nurse how the cardiac
electrical impulse normally begins, what is the most correct
response? The cardiac electrical impulse normally begins
spontaneously in the sinoatrial (SA) node because it:
a. Has rich sympathetic innervation via the vagus nerve
b. Depolarizes more rapidly than other automatic cells of the
heart
c. Has a superior location in the right atrium
d. Is the only area of the heart capable of spontaneous
depolarization
Answer:
b. DEPOLARIZES MORE RAPIDLY THAN OTHER AUTOMATIC CELLS OF HEART
Question:
A 54-year-old male is diagnosed with left bundle branch
block. Which of the following structures would not receive an
electrical impulse?
a. The left ventricle
b. Bundle of His
c. Atrioventricular (AV) node d. Sinoatrial (SA) node
Answer:
a. THE LEFT VENTRICLE
Question:
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. Increased intranodal conduction time
, b. Increased cardiac conduction
c. Decreased heart rate
d. Decreased myocardial contraction
Answer:
b. INCREASED CARDIAC CONDUCTION
Question:
The chamber of the heart that generates the highest pressure
is the:
a. Right atrium
b. Left atrium
c. Right ventricle
d. Left ventricle
Answer:
d. LEFT VENTRICLE
Question:
A 28-year-old female with seizure disorder has a vagus nerve
stimulator implanted to help control seizure activity. Which of
the following would the nurse also expect to occur?
a. Increased speed of cardiac cycle
b. Decreased cardiac conduction
c. Increased cardiac contractility
d. Decreased vasodilation
Answer:
b. DECREASED CARDIAC CONDUCTION
Question:
The nurse is reviewing a normal electrocardiogram. The nurse
assesses the PR interval because it represents:
a. "Electrical systole" of the ventricles
b. Onset of atrial activation to onset of ventricular activity
c. Ventricular depolarization
