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: D

Rationale: Furosemide is a potassium-wasting diuretic, so clients should consume potassium-rich foods like oranges to prevent hypokalemia. Oranges are a good source of potassium. Table salt, egg yolks, and white wine do not provide significant amounts of potassium and are not beneficial for a client taking furosemide.

Correct Answer: A

Rationale: The correct answer is A: Gastrointestinal upset. Metformin can cause gastrointestinal upset, especially when first starting therapy. It is important to take it with food to reduce these effects. Increased appetite (choice B) and weight loss (choice C) are not common side effects of metformin but may occur due to improved blood sugar control. Frequent urination (choice D) is a symptom of uncontrolled diabetes and not a side effect of metformin.

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.

Correct Answer: B

Rationale: The correct answer is B: Hemoglobin levels. Ferrous sulfate is used to treat iron deficiency anemia by increasing the body's iron stores. Monitoring hemoglobin levels is crucial as it reflects the effectiveness of the treatment in improving the client's anemia. Serum potassium levels (Choice A) are typically not directly affected by ferrous sulfate. Liver function tests (Choice C) and blood glucose levels (Choice D) are not routinely monitored when a client is receiving ferrous sulfate unless there are specific indications or pre-existing conditions that warrant such monitoring.