Correct Answer: B

Rationale: The correct answer is B: 'Monitor for signs of infection.' Methotrexate can suppress the immune system, making the client more susceptible to infections. Educating the client to monitor for signs of infection is crucial for early detection and management. Choice A is incorrect because methotrexate is not a pain reliever; it is commonly used to treat conditions like cancer, rheumatoid arthritis, and psoriasis. Choice C is incorrect because methotrexate is usually recommended to be taken with food to reduce gastrointestinal side effects. Choice D is incorrect because methotrexate is known to be harmful during pregnancy and should not be used by pregnant individuals as it can cause birth defects.

Correct Answer: A

Rationale: The correct answer is A. In the Mediterranean diet, red meat should be limited to two times monthly, not weekly. Choice B is correct as dairy in moderate portions daily is suitable for the Mediterranean diet. Choice C is also correct as having fish two times a week aligns with the Mediterranean diet. Choice D is correct as moderate wine consumption is a component of the Mediterranean diet.

Correct Answer: A

Rationale: Corrected Rationale: The nurse should encourage the client to use the PCA pump before activities like dressing changes, which are likely to cause pain, to ensure effective pain management. Monitoring the client's respiratory status (Choice B) is important but not the priority in this scenario. Providing oxygen therapy (Choice C) is not a routine intervention for all clients on PCA unless specifically indicated. Ensuring the PCA pump is functioning properly (Choice D) is essential, but encouraging the client to use the PCA before painful activities takes precedence to manage pain effectively.

Correct Answer: B

Rationale: Correct Answer: B. Ceftriaxone should be reconstituted with sterile water, not saline. Reconstituting it with normal saline can result in a chemical interaction and precipitation of the drug. Administering the medication over 30 minutes (choice C) is not necessary as ceftriaxone is usually given as an intravenous bolus or drip over a shorter period. Monitoring for signs of toxicity (choice D) is important but not the immediate action required for preparing the medication. The priority is to ensure proper reconstitution with the appropriate solvent, which is sterile water.

Correct Answer: A

Rationale: Clients with a history of osteoporosis should be carefully monitored when prescribed levothyroxine. Chronic overtreatment can cause increased bone loss, which raises the risk of fractures, especially in older adults. Thyroid hormone levels should be regularly monitored to avoid this complication. Scleroderma (choice B), asthma (choice C), and peripheral vascular disease (choice D) are not known to contraindicate the use of levothyroxine for hypothyroidism.