A nurse on a telemetry unit is assessing a client who is receiving continuous cardiac monitoring. The client's heart rate is 69/min and the PR interval is 0.24 seconds. The nurse should interpret this finding as which of the following cardiac rhythms?
Atrial fibrillation
First-degree AV block
Premature ventricular contraction
Sinus bradycardia
The Correct Answer is B
The correct answer is B.
Choice A reason: Atrial fibrillation is characterized by a rapid, irregular heartbeat and an absence of distinct P waves on the ECG, which is not indicated by the information provided.
Choice B reason: First-degree AV block is indicated by a prolonged PR interval without affecting the overall heart rate, aligning with the client’s PR interval of 0.24 seconds.
Choice C reason: Premature ventricular contraction would show an abnormal QRS complex on the ECG, which is not mentioned in the scenario.
Choice D reason: Sinus bradycardia is defined by a heart rate less than 60 bpm, which does not apply here as the client’s heart rate is 69/min, within the normal range of 60-100 bpm.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason:
Ketorolac is incorrect because it is an NSAID that is used for short-term pain relief. It has a higher risk of causing irritation to the stomach lining and is not recommended for clients with a history of peptic ulcers.
Choice B reason:
Acetaminophen is the correct answer. When caring for a client who reports a headache and has a history of a peptic ulcer, the nurse should administer Acetaminophen. Acetaminophen is an analgesic (pain reliever) and antipyretic (fever reducer) that does not have anti-inflammatory properties. It is a suitable option for pain relief in clients with a history of peptic ulcers because it is less likely to cause irritation to the stomach lining compared to nonsteroidal anti-inflammatory drugs (NSAIDs).
Choice C reason
Aspirin is not appropriate: Aspirin is an NSAID with anti-inflammatory, analgesic, and antipyretic properties. Like other NSAIDs, it can increase the risk of stomach irritation and should be avoided in clients with a history of peptic ulcers.
Choice D reason:
Ibuprofen is not the right option: Ibuprofen is another NSAID commonly used for pain relief and reducing inflammation and fever. Like other NSAIDs, it can irritate the stomach lining and is not recommended for clients with a history of peptic ulcers.

Correct Answer is ["B","C"]
Explanation
The correct answers are B and C.
Choice A Reason: Transferring a client who is receiving radiation therapy involves understanding the precautions and care associated with radiation, which may be beyond the training of assistive personnel (AP). Radiation therapy clients may have specific safety and transport protocols that require the expertise of licensed nursing staff.
Choice B Reason: Measuring vital signs for a client who requires contact precautions is a task that can be delegated to AP. Assistive personnel can be trained in infection control procedures and the use of personal protective equipment (PPE), making them capable of measuring vital signs while adhering to contact precautions.
Choice C Reason: Recording urine output for a client who has a suprapubic catheter can be delegated to AP. This task involves measuring and documenting a quantifiable data point, which does not require the clinical judgment of a nurse. AP can be trained to accurately measure and record urine output.
Choice D Reason: Planning care for a client who has dysphagia is a complex task that involves assessment and clinical judgment, which are responsibilities of the licensed nurse. Dysphagia can have serious complications, and care plans must be tailored to each client’s needs, requiring the expertise of a nurse.
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