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?

A. Tachycardia: Hypercalcemia is more likely to cause bradycardia (slow heart rate) due to its depressive effects on the cardiac muscle. B. Diarrhea: Hypercalcemia typically leads to constipation, not diarrhea. C. Positive Chvostek's sign: This is associated with hypocalcemia, not hypercalcemia. D. Muscle hypotonicity: Hypercalcemia can lead to muscle weakness and hypotonicity due to its effects on nerve and muscle function.