Correct Answer: C

Rationale: Dyspnea is a concerning finding in a client receiving Mannitol as it can be a manifestation of heart failure, an adverse effect of the medication. The nurse should report this to the provider promptly to ensure appropriate evaluation and management.

Correct Answer: C

Rationale: The nurse should monitor the client for gynecomastia, as it is an adverse effect of leuprolide due to decreased testosterone levels. Leuprolide works by decreasing testosterone production, which can lead to gynecomastia, the development of male breast tissue. Monitoring for this side effect is essential for early detection and intervention.

Correct Answer: D

Rationale: Acarbose, used for type 2 Diabetes Mellitus, can lead to liver toxicity with long-term use. Therefore, monitoring liver function tests periodically is essential to detect any signs of liver dysfunction early and prevent complications.

Correct Answer: A

Rationale: The client should avoid eating or drinking 15 min prior to and while chewing the nicotine gum.

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.