A nurse is reviewing the medical record of an adolescent and notes a calcium level of 11.4 mEq/L. Which of the following findings should the nurse expect?

Rationale: A. Positive Chvostek's sign is associated with hypocalcemia, not hypercalcemia. B. Hypercalcemia (calcium >10.5 mEq/L) often causes muscle weakness and decreased muscle tone (hypotonicity). C. Tachycardia is less common; hypercalcemia more often causes bradycardia or arrhythmias. D. Diarrhea is not a typical symptom of hypercalcemia; constipation is more common.