The patient's serum calcium quickly changed to 14 mg/dL (3.5 mmol/L). The nurse anticipates observing which symptoms? Select all that apply.

The patient’s father is observed pressing the patient’s patient-controlled analgesia (PCA) pump while the patient is asleep. The nurse attempts to arouse the patient, who only opens the eyes after being pinched. Once aroused, the patient is able to raise the hand upon request. When asked what the year is, the patient responds with the previous year. The nurse reports the patient’s condition to the provider with which number on the Glasgow Coma Scale? Enter your response using a whole number.

The patient is scheduled to undergo a trabeculectomy for the treatment of refractory glaucoma. The nurse is providing preoperative teaching to the patient. Which statement indicates a need for further teaching?