NCLEX-RN PRACTICE EXAM QUESTIONS WITH VERIFIED.
ANSWERS
ANSWERS..(LATEST UPDATE 2025/2026)
The healthcare provider is caring for a patient with a diagnosis of
hypomagnesemia and a QT interval of 0.500 seconds. Which of these, if
noted on the cardiac monitor, is an indication the patient's condition is
worsening?
a. Premature ventricular contractions
b. Narrow QRS complexes
c. An R-R interval of 111 second
d. A polymorphic ventricular tachycardia - CORRECT ANSWER
>>A polymorphic ventricular tachycardia
, - An R-R interval of 111 second translates to a heart rate of 60 beats
per minute, which is a normal finding.
- Narrow QRS complexes are associated with a variety of
tachycardias, but is not expected in this situation.
- The patient's history of hypomagnesemia and prolonged QT interval
puts the patient at risk of developing torsades de pointes, a polymorphic
ventricular tachycardia that can potentially degenerate into a ventricular
fibrillation.
A patient with a diagnosis of Wolff-Parkinson-White syndrome is
undergoing a catheter ablation procedure. When caring for the patient
after the procedure, which is the priority intervention? a. Assist the
patient to the bathroom to void.
b. Auscultate apical pulse for a full minute every hour.
c. Monitor insertion site and distal pulses.
d. Assess level of consciousness. - CORRECT ANSWER >>Monitor
insertion site and distal pulses.
- The extremity where the catheter was inserted will be immobilized
initially, so the patient will not be allowed out of bed to use the bathroom.
- The patient will be on a cardiac monitor so auscultation of the apical
pulse for one minute is not a priority.
ANSWERS
ANSWERS..(LATEST UPDATE 2025/2026)
The healthcare provider is caring for a patient with a diagnosis of
hypomagnesemia and a QT interval of 0.500 seconds. Which of these, if
noted on the cardiac monitor, is an indication the patient's condition is
worsening?
a. Premature ventricular contractions
b. Narrow QRS complexes
c. An R-R interval of 111 second
d. A polymorphic ventricular tachycardia - CORRECT ANSWER
>>A polymorphic ventricular tachycardia
, - An R-R interval of 111 second translates to a heart rate of 60 beats
per minute, which is a normal finding.
- Narrow QRS complexes are associated with a variety of
tachycardias, but is not expected in this situation.
- The patient's history of hypomagnesemia and prolonged QT interval
puts the patient at risk of developing torsades de pointes, a polymorphic
ventricular tachycardia that can potentially degenerate into a ventricular
fibrillation.
A patient with a diagnosis of Wolff-Parkinson-White syndrome is
undergoing a catheter ablation procedure. When caring for the patient
after the procedure, which is the priority intervention? a. Assist the
patient to the bathroom to void.
b. Auscultate apical pulse for a full minute every hour.
c. Monitor insertion site and distal pulses.
d. Assess level of consciousness. - CORRECT ANSWER >>Monitor
insertion site and distal pulses.
- The extremity where the catheter was inserted will be immobilized
initially, so the patient will not be allowed out of bed to use the bathroom.
- The patient will be on a cardiac monitor so auscultation of the apical
pulse for one minute is not a priority.
