A nurse is collecting data from a client who has a calcium level of 8 mg/dL (9.0-10.5 mg/dL). Which of the following manifestations should the nurse expect?

A. Tetany, which includes muscle spasms, cramping, and involuntary contractions, is a classic sign of hypocalcemia due to increased neuromuscular excitability. Positive Chvostek and Trousseau signs may also be observed. B. Constipation is more commonly associated with hypercalcemia, which slows gastrointestinal motility. C. A negative Chvostek sign indicates normal calcium levels or absence of neuromuscular excitability; in hypocalcemia, the sign is typically positive. D. Elevated blood pressure is not a characteristic finding of hypocalcemia; calcium imbalances primarily affect neuromuscular and cardiac excitability rather than causing hypertension.