Correct Answer: D

Rationale: The correct answer is D: Fluid volume status. Assessment of specific gravity helps to determine the concentration of solutes in the urine, indicating the degree of hydration or dehydration. In SIADH, there is water retention leading to diluted urine, resulting in low specific gravity. Monitoring specific gravity every 4 hours is crucial in assessing the patient's fluid volume status and response to treatment. A: Nutritional status is not directly assessed by specific gravity. B: Potassium balance is not directly assessed by specific gravity. C: Calcium balance is not directly assessed by specific gravity.

Correct Answer: D

Rationale: To interpret the given ABG results: 1. pH <7.35 indicates acidosis. 2. PaCO2 <35 indicates respiratory alkalosis. 3. HCO3 <22 indicates metabolic acidosis. Therefore, the ABG results show metabolic acidosis (low pH, low HCO3) with compensatory respiratory alkalosis (low PaCO2). This means the body is trying to compensate for the metabolic acidosis by decreasing PaCO2 through hyperventilation. Option D is correct. Options A, B, and C are incorrect as they do not align with the ABG results and the principles of acid-base balance.

Correct Answer: D

Rationale: The correct answer is D: Metabolic alkalosis. Furosemide, a loop diuretic, can lead to potassium depletion and metabolic alkalosis due to excessive loss of chloride and hydrogen ions. The nurse should assess for signs of metabolic alkalosis such as confusion, muscle weakness, and dysrhythmias to prevent complications. Respiratory acidosis and alkalosis are not directly related to furosemide therapy. Metabolic acidosis is less likely due to furosemide's mechanism of action.

Correct Answer: A

Rationale: The correct answer is A: Extravasation of the medication. Extravasation occurs when the infused medication leaks into surrounding tissues, potentially causing tissue damage and necrosis. This is a serious concern with vesicant medications like daunorubicin. If left untreated, it can lead to severe complications. Choice B: Discomfort to the patient is incorrect because while discomfort may occur with infiltration, the main concern is the potential for tissue damage from extravasation. Choice C: Blanching at the site is incorrect as it is a common sign of infiltration, but the main concern is the possibility of extravasation and tissue damage. Choice D: Hypersensitivity reaction to the medication is incorrect as it is a different type of reaction that is not directly related to infiltration or extravasation.

Correct Answer: B

Rationale: The correct answer is B because hyperphosphatemia can lead to paresthesia with sensations of tingling and numbness due to its effect on nerve function. A, hypokalemia causes muscle weakness but not flaccid paralysis with respiratory depression. C, hyponatremia typically presents with symptoms such as confusion and seizures, not decreased level of consciousness.