NRSG 4472: Chapter 13 questions with correct answers
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Course
RN- Nursing
Institution
RN- Nursing
A patient with a serum potassium level of 6.8 mEq/L may exhibit what type of electrocardiographic changes?
a.
A prominent U wave
b.
Tall, peaked T waves
c.
A narrowed QRS
d.
Sudden ventricular dysrhythmias Correct Answer-b
A patient with heart failure may be at risk for hypomagnesemia as...
NRSG 4472: Chapter 13 questions with correct
answers
A patient with a serum potassium level of 6.8 mEq/L may exhibit what
type of electrocardiographic changes?
a.
A prominent U wave
b.
Tall, peaked T waves
c.
A narrowed QRS
d.
Sudden ventricular dysrhythmias Correct Answer-b
A patient with heart failure may be at risk for hypomagnesemia as a
result of which factor?
a.
Pump failure
b.
Diuretic use
c.
Fluid overload
d.
Hemodilution Correct Answer-b
,Which diagnostic test is most effective for measuring overall heart size?
a.
12-lead electrocardiography
b.
Echocardiography
c.
Chest radiography
d.
Vectorcardiography Correct Answer-c
ST segment monitoring for ischemia has gained increasing importance
with the advent of thrombolytic therapy. What is the most accurate
method for monitoring the existence of true ischemic changes?
a.
Biomarkers
b.
Echocardiogram
c.
5-lead ECG
d.
12-lead ECG Correct Answer-d
Which criteria are representative of the patient in normal sinus rhythm?
a.
,Heart rate, 64 beats/min; rhythm regular; PR interval, 0.10 second; QRS,
0.04 second
b.
Heart rate, 88 beats/min; rhythm regular; PR interval, 0.18 second; QRS,
0.06 second
c.
Heart rate, 54 beats/min; rhythm regular; PR interval, 0.16 second; QRS,
0.08 second
d.
Heart rate, 92 beats/min; rhythm irregular; PR interval, 0.16 second;
QRS, 0.04 second Correct Answer-b
What is the major factor influencing the patient's response to atrial
flutter?
a.
Atrial rate
b.
Ventricular response rate
c.
PR interval
d.
QRS duration Correct Answer-b
What characteristic is associated with junctional escape rhythms?
a.
, Irregular rhythm
b.
Rate greater than 100 beats/min
c.
P wave may be present or absent
d.
QRS greater than 0.10 seconds Correct Answer-c
When assessing a patient with PVCs, the nurse knows that the ectopic
beat is multifocal because it appears in what way?
a.
In various shapes in the same lead
b.
With increasing frequency
c.
Wider than a normal QRS
d.
On the T wave Correct Answer-a
What major clinical finding present in a patient with ventricular
fibrillation (VF)?
a.
Hypertension
b.
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