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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is choice D. Administer a cathartic suppository 30 min prior to scheduled defecation times. This is because a cathartic suppository stimulates the nerve endings in the rectum, causing a contraction of the bowel and facilitating defecation. This is especially helpful for clients who have an upper motor neuron or reflexic bowel, which means they have lost the ability to feel when the rectum is full and have a tight anal sphincter muscle. A
bowel program is a way of controlling or moving the bowels after a spinal cord injury, which may affect normal bowel function depending on the spinal level involved. A bowel program aims to achieve regular bowel movements, prevent constipation or impaction, and avoid accidents.
Choice A is wrong because encouraging a maximum fluid intake of 1,500 mL per day is not enough to prevent constipation and promote bowel health. A fluid intake of at least 2,000 mL per day is recommended for most adults.
Choice B is wrong because increasing the amount of refined grains in the client’s diet can worsen constipation and reduce stool bulk.
Refined grains are low in fiber, which is essential for normal bowel function. A high-fiber diet of at least 20 to 35 grams per day is advised for clients with spinal cord injury.
Choice C is wrong because providing the client with a cold drink prior to defecation can have the opposite effect of stimulating the bowel.
Cold drinks can slow down the digestive process and reduce peristalsis, which is the movement of food through the intestines. Warm or hot drinks can help stimulate the bowel and increase peristalsis.
Correct Answer is A
Explanation
The correct answer is choice A. The nurse should compare new prescriptions with the list of medications the client reports. This is part of the medication reconciliation process, which is done to avoid medication errors such as omissions, duplications, dosing errors, or drug interactions. It should be done at every transition of care in which new medications are ordered or existing orders are rewritten.
Choice B is wrong because the nurse should not encourage the client to make his own list after he returns to his home. The nurse should provide the client with an updated and accurate list of medications before discharge and instruct the client to keep it with him at all times.
Choice C is wrong because the nurse should not include any adverse effects of the medications the client might develop. The nurse should include any known allergies or adverse reactions the client has experienced in the past, but not potential adverse effects that have not occurred.
Choice D is wrong because the nurse should not exclude nutritional supplements from the list of medications the client reports. The nurse should include all prescription medications, herbals, vitamins, nutritional supplements, over-the-counter drugs, vaccines, diagnostic and contrast agents, radioactive medications, parenteral nutrition, blood derivatives, and intravenous solutions in the medication reconciliation process.
Some of these products may interact with prescribed medications or affect laboratory results.
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