NR 341/ NR341 Complex Adult Health
Exam 1 Latest Update 2025-2026 .Real
Exam Questions and Correct Answers
|Rated A+
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-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
3. 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
4. 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
5. The patient is admitted with sinus pauses causing periods of loss of
consciousness. The patient is asymptomatic, awake and alert, but fatigued. He
answers questions appropriately. When admitting this patient, the nurse should
first:
a. prepare the patient for temporary pacemaker insertion.
b. prepare the patient for permanent pacemaker insertion.
c. assess the patient’s medication profile.
d. apply transcutaneous pacemaker paddles.
ANS-: C
,6. The patient’s heart rate is 165 beats per minute. His cardiac monitor shows a
rapid rate with narrow QRS complexes. The P waves cannot be seen, but the
rhythm is regular. The patient’s blood pressure has dropped from 124/62 to 78/30.
His skin is cold and diaphoretic and he is complaining of nausea. The nurse
prepares the patient for:
a. administration of beta-blockers.
b. administration of atropine.
c. transcutaneous pacemaker insertion.
d. emergent cardioversion.
ANS-: D
7. A patient with atrial fibrillation is prescribed warfarin. The nurse understands
that the primary goal of warfarin therapy in this patient is to:
a. convert the rhythm to normal sinus.
b. control the ventricular rate.
c. prevent stroke by reducing clot formation.
d. increase cardiac output.
ANS-: C
8. The nurse is caring for a patient with a pulmonary artery catheter. Which finding
suggests the patient is in cardiogenic shock?
a. Cardiac output 6.5 L/min
b. Pulmonary artery wedge pressure (PAWP) 22 mm Hg
c. Systemic vascular resistance (SVR) 600 dynes/sec/cm⁻⁵
d. Mixed venous oxygen saturation (SvO₂) 75%
ANS-: B
, 9. A patient with heart failure has crackles in both lung bases, jugular vein
distension, and 3+ pitting edema in the lower extremities. Which medication does
the nurse anticipate administering first?
a. Metoprolol
b. Digoxin
c. Furosemide
d. Spironolactone
ANS-: C
10. The nurse is assessing a patient receiving a loop diuretic. Which laboratory
value requires immediate intervention?
a. Serum potassium 3.1 mEq/L
b. Serum sodium 135 mEq/L
c. Blood glucose 110 mg/dL
d. Serum magnesium 2.0 mg/dL
ANS-: A
11. A patient presents with chest pain radiating to the jaw, diaphoresis, and nausea.
The ECG shows ST-segment elevation in leads II, III, and aVF. Which coronary
artery is most likely occluded?
a. Left anterior descending (LAD)
b. Left circumflex (LCx)
c. Right coronary artery (RCA)
d. Left main coronary artery
ANS-: C
Exam 1 Latest Update 2025-2026 .Real
Exam Questions and Correct Answers
|Rated A+
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-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
3. 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
4. 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
5. The patient is admitted with sinus pauses causing periods of loss of
consciousness. The patient is asymptomatic, awake and alert, but fatigued. He
answers questions appropriately. When admitting this patient, the nurse should
first:
a. prepare the patient for temporary pacemaker insertion.
b. prepare the patient for permanent pacemaker insertion.
c. assess the patient’s medication profile.
d. apply transcutaneous pacemaker paddles.
ANS-: C
,6. The patient’s heart rate is 165 beats per minute. His cardiac monitor shows a
rapid rate with narrow QRS complexes. The P waves cannot be seen, but the
rhythm is regular. The patient’s blood pressure has dropped from 124/62 to 78/30.
His skin is cold and diaphoretic and he is complaining of nausea. The nurse
prepares the patient for:
a. administration of beta-blockers.
b. administration of atropine.
c. transcutaneous pacemaker insertion.
d. emergent cardioversion.
ANS-: D
7. A patient with atrial fibrillation is prescribed warfarin. The nurse understands
that the primary goal of warfarin therapy in this patient is to:
a. convert the rhythm to normal sinus.
b. control the ventricular rate.
c. prevent stroke by reducing clot formation.
d. increase cardiac output.
ANS-: C
8. The nurse is caring for a patient with a pulmonary artery catheter. Which finding
suggests the patient is in cardiogenic shock?
a. Cardiac output 6.5 L/min
b. Pulmonary artery wedge pressure (PAWP) 22 mm Hg
c. Systemic vascular resistance (SVR) 600 dynes/sec/cm⁻⁵
d. Mixed venous oxygen saturation (SvO₂) 75%
ANS-: B
, 9. A patient with heart failure has crackles in both lung bases, jugular vein
distension, and 3+ pitting edema in the lower extremities. Which medication does
the nurse anticipate administering first?
a. Metoprolol
b. Digoxin
c. Furosemide
d. Spironolactone
ANS-: C
10. The nurse is assessing a patient receiving a loop diuretic. Which laboratory
value requires immediate intervention?
a. Serum potassium 3.1 mEq/L
b. Serum sodium 135 mEq/L
c. Blood glucose 110 mg/dL
d. Serum magnesium 2.0 mg/dL
ANS-: A
11. A patient presents with chest pain radiating to the jaw, diaphoresis, and nausea.
The ECG shows ST-segment elevation in leads II, III, and aVF. Which coronary
artery is most likely occluded?
a. Left anterior descending (LAD)
b. Left circumflex (LCx)
c. Right coronary artery (RCA)
d. Left main coronary artery
ANS-: C
