Chapter 26 Arrhythmias: Nursing Management

Chapter 26  Arrhythmias: Nursing Management

Complete Chapter Questions And Answers
 

Sample Questions

MULTIPLE CHOICE

1. A client is experiencing an alteration in heart rate. The nurse realizes this client is experiencing a disorder of which part of the heart?
1.
Atrioventricular node
2.
Bundle branches
3.
Purkinje fibers
4.
Sinoatrial node

ANS: 4
The sinoatrial node is the dominant pacemaker of the heart. The sinoatrial node has an inherent rate of 60 to 100 bpm. The atrioventricular node has an intrinsic rate of 40 to 60 bpm. The impulse enters the right and left bundle branches and then enters the Purkinje fibers. Impulses at this level are at 15 to 40 times per minute.

PTS: 1 DIF: Analyze REF: Anatomy and Physiology

2. A client is suspected of having cardiac damage. The nurse realizes that which of the following diagnostic tests is most commonly used to help diagnose this client’s possible cardiac damage or disease?
1.
12-lead electrocardiogram
2.
Arterial blood gases
3.
Cardiac angiogram
4.
Cardiac enzymes

ANS: 1
A 12-lead electrocardiogram is a quick and accurate diagnostic tool used to evaluate heart damage and disease. The other diagnostic tests require a longer time for results and/or are invasive procedures requiring some preparation.

PTS: 1 DIF: Analyze REF: ECG Monitoring

3. The nurse is analyzing a client’s electrocardiogram tracing. Which of the following complexes is not normally seen on an electrocardiogram tracing?
1.
P wave
2.
QRS complex
3.
T wave
4.
U wave

ANS: 4
A U wave is not always seen and can be very small. It can indicate electrolyte imbalance, medication effects, and ischemia. The P wave, QRS complex, and T wave are normally seen in the electrocardiogram tracing.

PTS: 1 DIF: Analyze
REF: The Normal ECG Complex; Figure 26-1 Conduction System of the Heart

4. The nurse is analyzing a client’s electrocardiogram tracing and realizes that each small square on the paper is equal to:
1.
0.04 second.
2.
0.12 second.
3.
0.20 second.
4.
0.40 second.

ANS: 1
The small square on the ECG graph paper equals 0.04 second. The large square equals 0.20 second. The PR interval is 0.12 to 0.20 second. Two large squares would be equal to 0.40 second.

PTS: 1 DIF: Analyze REF: Calculating Heart Rate