Correct Answer: B

Rationale: When a client is receiving IV Opioid analgesics during labor, the nurse should offer oral hygiene every 2 hours. Opioid analgesics can cause adverse effects like dry mouth, nausea, and vomiting. Providing oral hygiene care helps alleviate these symptoms and maintains the client's comfort and well-being during labor.

Correct Answer: B

Rationale: Levofloxacin should not be taken with dairy products because calcium can interfere with the absorption of the medication. It is recommended to take Levofloxacin 1 hour before or 2 hours after consuming dairy products to ensure optimal absorption and effectiveness of the medication.

Correct Answer: C

Rationale: The correct way to administer eye drops is by instructing the client to drop the prescribed amount of medication into the center of the conjunctival sac. This technique helps in proper distribution and absorption of the medication.

Correct Answer: A

Rationale: St. John's wort can reduce the effectiveness of Warfarin by interacting with its metabolism pathways, potentially leading to decreased anticoagulant effects. Therefore, clients on Warfarin therapy should avoid St. John's wort. While echinacea, garlic, and ginseng are also herbal supplements that can interact with Warfarin, St. John's wort is particularly known for its significant impact on Warfarin metabolism.

Correct Answer: B

Rationale: Chewing sugarless gum can help alleviate dry mouth, which is a common anticholinergic effect of Fluphenazine. This intervention can provide relief and improve the client's comfort while taking the medication.