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 ["A","B","C","E","F"]
Explanation
A:Provide frequent rest periods for the client. This is correct because the client has anaemia (low haemoglobin and hematocrit), which can cause weakness and fatigue. Rest periods can help conserve energy and prevent complications.
B:Instruct the client to avoid blowing their nose forcefully. This is correct because the client has thrombocytopenia (low platelet count), which can increase the risk of bleeding. Blowing the nose forcefully can cause nasal bleeding or rupture of blood vessels.
C: Assess the client’s level of orientation. This is correct because the client has hepatic encephalopathy (brain dysfunction due to liver failure), which can cause confusion, mood changes, and disorientation. Assessing the client’s level of orientation can help monitor the severity of hepatic encephalopathy and guide appropriate interventions.
D:Place the client on a low-carbohydrate diet. This is incorrect because a low-carbohydrate diet can worsen hepatic encephalopathy by increasing ammonia production in the gut. The client should be on a high-protein, high-calorie diet to provide adequate nutrition and prevent muscle wasting.
E: Restrict the client’s sodium intake. This is correct because the client has ascites (fluid accumulation in the abdomen) due to portal hypertension (high blood pressure in the portal vein). Restricting sodium intake can help reduce fluid retention and prevent further complications.
F Advise the client to avoid the use of soap and alcohol-based lotions. This is correct because the client has pruritus (itching) due to high bilirubin levels in the blood. Soap and alcohol-based lotions can dry out the skin and worsen pruritus. The client should use mild cleansers and moisturizers to soothe the skin.
G: Place the client under contact isolation. This is incorrect because there is no indication that the client has an infectious disease that requires contact isolation. Contact isolation is used for clients who have diseases that can be transmitted by direct or indirect contact with the client or their environment, such as Clostridioides difficile infection or methicillin-resistant Staphylococcus aureus infection.
Correct Answer is ["A","C"]
Explanation
A: Review the need for the indwelling urinary catheter daily.
This is correct because indwelling catheters should be removed as soon as possible to reduce the risk of urinary tract infection (UTI).
B: Place the drainage bag on the bed when transporting the client.
This is incorrect because the drainage bag should be kept below the level of the bladder and should not touch the floor to prevent the backflow of urine and contamination of the catheter.
C: Use soap and water to provide perineal care.
This is correct because soap and water can help to remove bacteria and debris from the meatus and prevent infection.
D: Encourage the client to drink 3000 mL of fluid daily.
This is incorrect because the client has a fluid restriction of 1000 mL daily due to heart failure. Excessive fluid intake can worsen the client’s condition and increase the workload of the heart.
E: Change the indwelling urinary catheter tubing every 3 days.
This is incorrect because changing the catheter tubing can increase the risk of infection by breaking the closed drainage system. The catheter tubing should only be changed when it is visibly soiled or malfunctioning.
F: Empty the drainage bag when it is half full.
This is incorrect because the drainage bag should be emptied at least every 8 hours or when it is one-third full to prevent back pressure and infection.
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