A nurse is teaching a class about using niacin to reduce LDL cholesterol.
The nurse should include in the teaching that which of the following conditions is a contraindication for receiving this medication?

Initiate transmission-based precautions.

Rationale:

1. B- Encouraging oral fluids is an important intervention for a child who has a fever, as it helps prevent dehydration and electrolyte imbalance. However, it is not the priority intervention, as it does not address the risk of infection transmission to other clients or staff.
2. A - Applying topical calamine lotion may help soothe the itching and discomfort caused by the vesicles, but it is not the priority intervention, as it does not prevent infection transmission or treat the underlying cause of the fever.
3. C - Administering acetaminophen as an antipyretic may help reduce the fever and provide symptomatic relief for the child, but it is not the priority intervention, as it does not prevent infection transmission or treat the underlying cause of the fever.
4. D - Initiating transmission-based precautions is the priority intervention, as it protects other clients and staff from exposure to the infectious agent that causes the vesicles and fever. The nurse should wear gloves, gown, mask, and eye protection when caring for the child, and place them in a private room or cohort them with other clients who have similar symptoms.

- A. Chest x-ray is not correct because it is not related to valproic acid therapy or its adverse effects.

- B. Serum liver enzyme levels is correct because valproic acid can cause hepatotoxicity and liver function tests should be monitored regularly.

- C. ABGS is not correct because it is not indicated for valproic acid therapy or its adverse effects.

- D. Urine culture and sensitivity is not correct because it is not related to valproic acid therapy or its adverse effects.