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NR 341 COMPLEX ADULT HEALTH EXAM 1| LATEST 2023-2024 ACTUAL EXAM | FULL QUESTIONS AND CORRECT ANSWERS|A+ GRADE GUARANTEED.
1. 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 
2. 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-secon...
- Exam (elaborations)
- • 39 pages •
1. 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 
2. 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-secon...