A client taking atorvastatin reports new diffuse muscle pain… | MyMerci
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Medication Administration PPT
Question

A client taking atorvastatin reports new diffuse muscle pain and weakness. The urine is dark, creatine kinase is markedly elevated, and creatinine is rising. Which action should the nurse take?

Explanation
Muscle pain and weakness with markedly elevated creatine kinase, dark urine, and rising creatinine indicate statin-associated rhabdomyolysis with risk of myoglobin-related acute kidney injury and electrolyte abnormalities. Atorvastatin is held, the provider is notified promptly, renal function and electrolytes are monitored, and prescribed isotonic hydration is initiated. Continuing the statin, delaying evaluation, or restricting fluid can worsen injury.
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In-depth explanation

Clinical reasoning
Atorvastatin can cause myopathy and rhabdomyolysis. Myoglobin released from injured muscle can damage the kidneys, while potassium released from cells can create an arrhythmia risk.

Decision rule
New severe muscle symptoms plus a marked creatine kinase elevation require the statin to be held and urgent evaluation of renal function, electrolytes, urine output, and hydration needs.
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For study reference only. Always follow current clinical guidelines and your institution’s protocols.