A patient with a history of heart failure presents at the emergency department reporting fatigue and weakness. The patient has been taking 50 mg spironolactone tablets orally every day.
The nurse receives a lab report indicating the patient’s serum potassium level is 6.2 mEq/L (6.2 mmol/L). What is the most important intervention for the nurse to implement?
Compare muscle strength bilaterally.
Observe the color and amount of urine.
Determine the apical pulse rate and rhythm.
Assess the strength of deep tendon reflexes.
The Correct Answer is C
Choice A rationale
Comparing muscle strength bilaterally is not the most important intervention in this situation. While muscle weakness can be a symptom of hyperkalemia, it is not the most immediate concern. Hyperkalemia can lead to life-threatening cardiac dysrhythmias, which is a more immediate threat to the patient’s life.
Choice B rationale
Observing the color and amount of urine can provide information about the patient’s renal function, which is important in the regulation of potassium. However, this is not the most immediate concern when a patient’s serum potassium level is dangerously high.
Choice C rationale
Determining the apical pulse rate and rhythm is the most important intervention. Hyperkalemia can cause cardiac dysrhythmias, so the nurse should immediately assess the patient’s heart rate and rhythm. The nurse should also place the patient on a cardiac monitor, if not already done, and notify the healthcare provider immediately.
Choice D rationale
Assessing the strength of deep tendon reflexes can provide information about neuromuscular function, which can be affected by hyperkalemia. However, this is not the most immediate concern. The nurse’s priority is to assess and monitor for life-threatening cardiac dysrhythmias.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Testing the fluid on the dressing for glucose is the immediate action the nurse should take. Clear fluid could be cerebrospinal fluid (CSF), which is often released following spinal surgery. CSF contains glucose, so a positive glucose test would confirm it is CSF.
Choice B rationale
Replacing the dressing using a compression bandage is not the immediate action the nurse should take. While it is important to manage the drainage and prevent infection, the nurse first needs to identify what the clear fluid is.
Choice C rationale
Marking the drainage area with a pen and continuing to monitor is not the immediate action the nurse should take. While this can be part of ongoing wound care and monitoring, the nurse first needs to identify what the clear fluid is.
Choice D rationale
Documenting the findings in the electronic medical record is an important step, but it should not be the immediate action. The nurse first needs to identify what the clear fluid is, as it could indicate a complication from the surgery.
Correct Answer is B
Explanation
Choice A rationale
A blood glucose level of 90 mg/dL (5 mmol/L) is within the normal range and would not need to be reported to the surgeon.
Choice B rationale
A serum creatinine level of 5 mg/dL (442 µmol/L) is significantly elevated, indicating impaired kidney function. This is a critical lab value that should be reported to the surgeon immediately, as it could impact the patient’s ability to safely undergo surgery and recover postoperatively.
Choice C rationale
A hemoglobin level of 13 g/dL (130 g/L) is within the normal range and would not need to be reported to the surgeon.
Choice D rationale
A potassium level of 4 mEq/L (4 mmol/L) is within the normal range and would not need to be reported to the surgeon.
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