NR 341 EXAM 1 LATEST 2025-2026
SPRING-SUMMER SEMESTER
COMPLETE 100 QUESTIONS
ANSWERED
8. The QT interval is the total time taken for ventricular depolarization and repolarization.
Prolongation of the QT interval:
a. decreases the risk of lethal dysrhythmias.
b. usually occurs when heart rate increases.
c. increases the risk of lethal dysrhythmias.
d. can only be measured with irregular rhythms.
ANS: C
9. The patient has an irregular heart rhythm. To determine an accurate heart rate, the nurse first:
a. identifies the markers on the ECG paper that indicate a 6-second strip.
b. counts the number of large boxes between two consecutive P waves.
,c. counts the number of small boxes between two consecutive QRS complexes.
d. divides the number of complexes in a 6-second strip by 10.
, ANS: A
11. The patient is admitted with a fever and rapid heart rate. The patient’s temperature is 103° F
(39.4° C).The nurse places the patient on a cardiac monitor and finds the patient’s atrial and
ventricular rates are above 105 beats per minute. P waves are clearly seen and appear normal in
configuration. QRS complexes are normal in appearance and 0.08 seconds wide. The rhythm is
regular, and blood pressure is normal. The nurse should focus on providing:
a. medications to lower heart rate.
b. treatment to lower temperature.
c. treatment to lower cardiac output.
d. treatment to reduce heart rate.
ANS: B
12. The nurse is working on the night shift when she notices sinus bradycardia on the patient’s
cardiac monitor. The nurse should:
a. give atropine to increase heart rate.
b. begin transcutaneous pacing of the patient.
c. start a dopamine infusion to stimulate heart function.
d. assess for hemodynamic instability.
ANS: D
SPRING-SUMMER SEMESTER
COMPLETE 100 QUESTIONS
ANSWERED
8. The QT interval is the total time taken for ventricular depolarization and repolarization.
Prolongation of the QT interval:
a. decreases the risk of lethal dysrhythmias.
b. usually occurs when heart rate increases.
c. increases the risk of lethal dysrhythmias.
d. can only be measured with irregular rhythms.
ANS: C
9. The patient has an irregular heart rhythm. To determine an accurate heart rate, the nurse first:
a. identifies the markers on the ECG paper that indicate a 6-second strip.
b. counts the number of large boxes between two consecutive P waves.
,c. counts the number of small boxes between two consecutive QRS complexes.
d. divides the number of complexes in a 6-second strip by 10.
, ANS: A
11. The patient is admitted with a fever and rapid heart rate. The patient’s temperature is 103° F
(39.4° C).The nurse places the patient on a cardiac monitor and finds the patient’s atrial and
ventricular rates are above 105 beats per minute. P waves are clearly seen and appear normal in
configuration. QRS complexes are normal in appearance and 0.08 seconds wide. The rhythm is
regular, and blood pressure is normal. The nurse should focus on providing:
a. medications to lower heart rate.
b. treatment to lower temperature.
c. treatment to lower cardiac output.
d. treatment to reduce heart rate.
ANS: B
12. The nurse is working on the night shift when she notices sinus bradycardia on the patient’s
cardiac monitor. The nurse should:
a. give atropine to increase heart rate.
b. begin transcutaneous pacing of the patient.
c. start a dopamine infusion to stimulate heart function.
d. assess for hemodynamic instability.
ANS: D
