A client arrives to the healthcare setting currently taking atorvastatin (Lipitor) daily. Which assessment finding associated with atorvastatin (Lipitor) would need immediate reporting to the healthcare provider?

A. Bradycardia is not a direct side effect of atorvastatin and may require further context for concern. B. Elevated HDL cholesterol is a positive outcome of atorvastatin therapy and does not require reporting. C. A migraine headache is not typically a direct side effect of atorvastatin but could warrant discussion if it affects the client's overall well-being. D. Dark-red urine may indicate potential muscle breakdown (rhabdomyolysis) associated with atorvastatin and should be reported immediately due to the risk of kidney damage.