A Patient with Primary Hyperparathyroidism Has a Serum Calcium Level

A patient with primary hyperparathyroidism has a serum calcium level of 14 mg/dl (3.5 mmol/L) , phosphorus of 1.7 mg/dl (0.55 mmol/L) , serum creatinine of 2.2 mg/dl (194 mmol/L) , and a high urine calcium. While the patient awaits surgery, the nurse should

A) institute seizure precautions such as padded siderails.
B) assist the patient to perform range-of-motion exercises QID.
C) monitor the patient for positive Chvostek's or Trousseau's sign.
D) encourage the patient to drink 4000 ml of fluid daily.