Correct Answer: C

Rationale: The correct term to describe a patient with a serum osmolality of 305 mOsm/kg is 'hyperosmolar.' Normal osmolality ranges from 280 to 300 mOsm/kg. A patient with an osmolality above this range is considered hyperosmolar. Choice A ('Iso-osmolar') implies an equal osmolality, which is not the case in this scenario. Choice B ('Hypo-osmolar') suggests a lower osmolality, which is incorrect based on the provided serum osmolality value. Choice D ('Isotonic') refers to a solution having the same osmolality as another solution, not describing the specific scenario of this patient being above the normal range.

Correct Answer: D

Rationale: The correct answer is D: Renal calculi. Acetazolamide, a carbonic anhydrase inhibitor, can lead to electrolyte imbalances and the formation of renal calculi. Right-sided flank pain is a classic symptom of renal calculi. Choices A, B, and C are incorrect. Gout is not typically associated with acetazolamide use. Hemolytic anemia and metabolic acidosis are not commonly linked to acetazolamide-induced side effects. Therefore, the patient's symptoms align more closely with the development of renal calculi.

Correct Answer: A

Rationale: Oliguria, tachycardia, and abdominal cramping are signs of hyperkalemia, so the nurse should request an order for serum electrolytes to assess the patient's potassium levels. Encouraging the patient to consume less fluids would not address the underlying issue of potential hyperkalemia. Reporting symptoms of hyperkalemia to the provider is not as proactive as directly requesting serum electrolytes. Increasing the patient's potassium dose would worsen hyperkalemia, which is already suspected based on the symptoms presented.

Correct Answer: A

Rationale: Metformin can cause lactic acidosis and renal impairment as the result of an interaction with the dye. This drug must be discontinued for 48 hours before the procedure and not started again after the procedure until urine output is well established. The client's health care provider needs to provide alternative therapy for the client until the metformin can be resumed. Keeping the client NPO, checking the client's blood glucose, and administering intravenous fluids should be part of the client's plan of care, but are not the priority, as the examination should not occur while the client is still taking metformin.

Correct Answer: C

Rationale: Patients who develop signs of allergy, such as rash, should notify their provider before continuing medication therapy. Patients should be counseled to continue taking their antibiotics until completion of the prescribed regimen even when they feel well. Diarrhea is an adverse effect but does not warrant cessation of the drug. Before deciding to stop taking a medication due to a side effect, encourage the patient to contact the provider first. Patients should discard any unused antibiotic.