Correct Answer: D

Rationale: The correct answer is D. A low potassium level (3.1 mEq/L) can increase the risk of digoxin toxicity. Hypokalemia can potentiate the effects of digoxin on the heart, leading to serious dysrhythmias. Choices A, B, and C are within normal ranges and do not indicate a need to withhold digoxin.

Correct Answer: C

Rationale: The correct action the nurse should include in the care plan for a client receiving nitroprusside for severe hypertension is to limit light exposure to the infusion. Nitroprusside is light-sensitive, so it should be protected from light exposure to prevent degradation. Administering calcium gluconate at the bedside is not directly related to nitroprusside administration. Monitoring blood pressure every 2 hours is a good practice but is not specifically related to the administration of nitroprusside. Keeping the client on NPO status is not necessary solely based on receiving nitroprusside.

Correct Answer: B

Rationale: Administering an intermittent enteral feeding through a gastrostomy tube requires flushing the tube with 10 mL of sterile water before feeding. This action helps ensure patency and prevents clogging. Choice A is incorrect because flushing after feeding does not address the need for pre-feeding tube flushing. Choice C is unrelated to tube feeding administration. Choice D is incorrect as the height of the feeding bag above the abdomen is typically regulated by healthcare facility policies and is not a universal standard.

Correct Answer: D

Rationale: Urine output less than 30 mL/hr is indicative of decreased kidney function, potentially due to inadequate perfusion or other complications post-aneurysm resection. This finding requires immediate reporting to prevent further complications such as acute kidney injury. Serosanguineous drainage on the dressing, abdominal distention, and absent bowel sounds are also important postoperative assessments but are not as critical as impaired kidney function in this scenario.

Correct Answer: C

Rationale: The correct answer is C. A heart rate of 110/min is elevated and may indicate hypocalcemia, a potential complication following a thyroidectomy. Elevated heart rate can be a sign of hypocalcemia due to the close relationship between calcium levels and cardiac function. Option A, serum calcium level of 8 mg/dL, is within the normal range (8.5-10.5 mg/dL) and would not be a cause for concern post-thyroidectomy. Option B, urine output of 60 mL/hr, is within the normal range for urine output and not typically a priority finding post-thyroidectomy. Option D, a temperature of 37.5°C (99.5°F), is slightly elevated but not a critical finding post-thyroidectomy unless accompanied by other symptoms.