Final answer:
Clients taking rosuvastatin (Crestor) should be instructed to report any unexplained muscle weakness to their physician. This could indicate a serious side effect. Other instructions like taking with fruit juice or reporting difficulty sleeping are not standard for rosuvastatin.
Step-by-step explanation:
The instruction that should be given to a client taking rosuvastatin (Crestor) is to report unexplained muscle weakness to the physician. This symptom could be a sign of a serious side effect known as rhabdomyolysis. While rosuvastatin is a medication that helps in lowering high levels of cholesterol, patients are usually monitored for any adverse effects.
It is noteworthy that the effect of statins on cholesterol levels is generally observed before six months, contrary to what might be suggested by allowing six months for the drug to take effect. In practice, a significant reduction in cholesterol levels is typically seen within several weeks of starting treatment. However, it is important to continue taking the medication as prescribed and follow up with your healthcare provider to assess its efficacy and tolerance. As for the other options, taking the medication with fruit juice or reporting difficulty sleeping are not standard instructions associated with rosuvastatin use.