The nurse is completing the admission assessment of an adolescent client who is underweight and admitted to a psychiatric unit with a diagnosis of depression. Which finding requires notification to the healthcare provider? Reference Ranges Potassium (K+) [3.5 to 5.0 mEq/L (3.5 to 5.0 mmol/L)] White Blood Cell (WBC) [5,000 to 10,000/mm3 (5 to 10 x 109/L)] Body mass index (BMI) [normal 18.0 to 24.9 kg/m3]