Correct Answer: C

Rationale: Edema is a common sign of fluid overload. When the body retains more fluid than it excretes, it can lead to edema, which is swelling caused by excess fluid trapped in body tissues. Weight gain, not weight loss, is typically associated with fluid overload due to the retained fluids. Decreased blood pressure is more commonly associated with dehydration rather than fluid overload. Increased urine output is a sign of the body trying to eliminate excess fluids, which is contrary to the signs of fluid overload.

Correct Answer: A

Rationale: Muscle weakness is a classic sign of hypokalemia. Potassium plays a crucial role in muscle function, and low potassium levels can lead to muscle weakness. Weight gain, elevated blood pressure, and increased thirst are not typically associated with hypokalemia. Weight gain can be seen in conditions like fluid retention, elevated blood pressure can result from various causes, and increased thirst may be a symptom of conditions like diabetes.

Correct Answer: C

Rationale: The correct answer is C: Oxybutynin. Oxybutynin is an anticholinergic used to treat overactive bladder, not a UTI. The nurse should verify this prescription because it may not be appropriate for a UTI. Choices A, B, and D are antibiotics commonly used in the treatment of UTIs. Ciprofloxacin, trimethoprim-sulfamethoxazole, and nitrofurantoin are more suitable choices for the treatment of a UTI compared to oxybutynin.

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: C

Rationale: The correct answer is C. School-age children (6-12 years) are in Erikson's stage of industry vs. inferiority. During this stage, they strive to develop a sense of industry through learning and socialization. They seek to excel in various areas, such as schoolwork or activities, and look for approval from peers and adults. Choices A, B, and D are incorrect because personalizing values and beliefs, developing personal identity influenced by family expectations, and feeling guilty for inability to accomplish tasks are not typical behavioral findings for a school-age child in the context of psychosocial development.