Correct Answer: B

Rationale: The nurse should instruct the client to report fever when starting rituximab therapy. Fever can be a sign of infection, which is a potential complication associated with rituximab. Early detection and treatment of infections are important to ensure the client's safety and well-being.

Correct Answer: C

Rationale: It is essential to take Levodopa/Carbidopa with food to reduce gastrointestinal side effects. Food helps decrease the likelihood of gastrointestinal upset that may occur when taking this medication. Instructing the client to take the medication with food promotes better tolerance and absorption of the drug.

Correct Answer: B

Rationale: The nurse should withhold the medication and inform the provider of the client's previous rash after taking penicillin. This history suggests a potential allergic reaction to penicillin, which can range from mild to severe anaphylaxis. Notifying the provider allows for an alternative antibiotic to be prescribed, considering the client's allergy to penicillin. It is crucial to avoid administering a medication that could potentially lead to a severe allergic reaction in the client.

Correct Answer: C

Rationale: The nurse should monitor the client for neutropenia when receiving capecitabine, as it is a common adverse effect caused by bone marrow suppression. Neutropenia increases the risk of infection, making it essential for the nurse to closely monitor the client's white blood cell count and assess for signs of infection during treatment.

Correct Answer: D

Rationale: When taking colesevelam, it should be administered with food and at least 8 oz of water to ensure proper absorption and reduce the risk of gastrointestinal side effects. Therefore, the nurse should instruct the client to take colesevelam with food and at least one glass of water.