The nurse is caring for a client with a fungal infection and prescribed fluconazole (Diflucan). Which of the following side effects should the nurse caution the client regarding?

A) Increase in the client's liver panel: Fluconazole (Diflucan) is an antifungal medication that is metabolized in the liver, and one of the potential side effects of this drug is liver toxicity. This can manifest as an increase in liver enzymes (such as AST, ALT, or alkaline phosphatase) seen in the liver panel. It is important for the nurse to monitor the client’s liver function, especially if the patient has pre-existing liver conditions. If there are signs of liver toxicity, such as jaundice, abdominal pain, or elevated liver enzymes, the healthcare provider should be notified and the medication may need to be adjusted or discontinued. B) Increase in the client's creatinine clearance: Fluconazole is primarily eliminated through the kidneys, but it does not typically cause an increase in creatinine clearance. In fact, in patients with renal impairment, fluconazole can lead to an increase in serum creatinine levels due to reduced renal clearance of the drug. Therefore, a decrease (rather than an increase) in creatinine clearance is a more common concern, and renal function should be monitored during treatment. C) Change of color to the client's secretions: Fluconazole is not known to cause a change in the color of secretions (such as urine, saliva, or sweat). This side effect is more commonly associated with certain medications like rifampin (which can turn urine or sweat orange). However, fluconazole’s side effects are generally related to liver and renal function, as well as gastrointestinal disturbances, not to changes in secretions. D) Red Man syndrome: Red Man syndrome is a reaction typically associated with vancomycin, an antibiotic used for Gram-positive infections, especially when administered too rapidly via IV. It is characterized by flushing, rash, and hypotension, and is not a side effect of fluconazole. Fluconazole does not cause this type of infusion-related reaction, so this is not a concern with fluconazole therapy.