A nurse is reviewing a client's cardiac rhythm strips and notes a constant P-R interval of
0.35 seconds. Which of the following dysrhythmias is the client displaying?
Premature atrial complexes
Complete heart block
Atrial fibrillation
First-degree atrioventricular block
The Correct Answer is D
A. Incorrect. Premature atrial complexes do not typically affect the P-R interval. They are characterized by an early P-wave followed by a QRS complex.
B. Incorrect. Complete heart block is characterized by a dissociation between the P-waves and QRS complexes, resulting in no relationship between atrial and ventricular activity.
C. Incorrect. Atrial fibrillation is characterized by chaotic and irregular atrial activity without distinct P-waves, making the P-R interval irrelevant.
D. Correct. In first-degree atrioventricular block, the P-R interval is prolonged beyond the normal range of 0.12-0.20 seconds. A constant P-R interval of 0.35 seconds indicates a first- degree atrioventricular block.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Correct. Banana slices are a soft and easily manageable food that encourages a toddler's independence in eating. They can be easily held by the toddler and self-fed.
B. Incorrect. Hot dogs are a choking hazard due to their shape and texture, which can increase the risk of choking in young children.
C. Incorrect. Grapes are also a choking hazard for young children, as they can easily block the airway if not cut into small pieces.
D. Incorrect. Popcorn is a choking hazard due to its size, shape, and hardness. It should be avoided in young children.
Correct Answer is C
Explanation
A. While additional staffing might be necessary, the nurse's priority in a mass casualty event is to assess and provide care to incoming clients.
B. Discharging specific acute care clients may not be the immediate priority in a mass casualty event.
C. Correct. In a mass casualty event, the nurse should collaborate with the emergency department to determine the medical needs and prioritize care for incoming clients.
D. Acting as a liaison between the facility and the media may not be the immediate priority during a mass casualty event.
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