A nurse is reviewing the medical record of a client who has hyperthyroidism (Graves disease). Which of the following serum laboratory findings should the nurse expect to be below the expected reference range?

Choice A reason: Phosphate 5.7 mg/dL is an elevated value, as the normal range is 2.5 to 4.5 mg/dL. Hypoparathyroidism causes low levels of parathyroid hormone (PTH), which regulates calcium and phosphorus balance in the body. Low PTH leads to low calcium and high phosphorus levels in the blood.

Choice B reason: Vitamin D 25 ng/mL is a normal value, as the normal range is 20 to 50 ng/mL. Hypoparathyroidism does not directly affect vitamin D levels, but vitamin D supplements may be given to help increase calcium absorption and lower phosphorus levels in the blood.

Choice C reason: Calcium 9.8 mg/dL is a normal value, as the normal range is 8.6 to 10.2 mg/dL. Hypoparathyroidism causes low levels of parathyroid hormone (PTH), which regulates calcium and phosphorus balance in the body. Low PTH leads to low calcium and high phosphorus levels in the blood. However, calcium levels may be normal or near- normal in some cases of hypoparathyroidism, especially if the condition is mild or well-controlled with treatment.

Choice D reason: Magnesium 1.8 mEq/L is a normal value, as the normal range is 1.5 to 2.5 mEq/L. Hypoparathyroidism does not directly affect magnesium levels, but magnesium deficiency can cause or worsen hypoparathyroidism, as magnesium is needed for PTH secretion and action. Magnesium supplements may be given to correct magnesium deficiency and improve PTH function.

Choice A reason: Documenting the color, consistency, and amount of nasogastric drainage is an important action for the nurse to include in the client’s plan of care. This can help monitor the client’s GI function, fluid balance, and response to treatment. The normal color of nasogastric drainage is clear or yellow-green. Abnormal colors include red, brown, or black, which may indicate bleeding.

Choice B reason: Encouraging hourly use of an incentive spirometer while awake is an important action for the nurse to include in the client’s plan of care. This can help prevent respiratory complications, such as atelectasis and pneumonia, which are common after abdominal surgery. An incentive spirometer is a device that helps the client breathe deeply and expand the lungs.

Choice C reason: Irrigating the nasogastric tube every 4 to 8 hr is not an action that the nurse should include in the client’s plan of care. Routine irrigation of nasogastric tubes is not recommended, as it may increase the risk of infection, tube occlusion, or aspiration. Irrigation should only be done when indicated by specific orders or protocols, or when there is evidence of tube blockage.

Choice D reason: Performing leg exercises every 2 hr is an important action for the nurse to include in the client’s plan of care. This can help prevent venous thromboembolism (VTE), which is a serious complication that can occur after surgery due to immobility and hypercoagulability. Leg exercises can improve blood circulation and reduce stasis in the lower extremities.