A 60-year-old woman comes to the physician for a 6-month history of mildly productive cough and dyspnea. Vitals are within normal limits. BMI is 24. Chest x-ray shows a density in the right hilar region. Lung biopsy shows round cells twice the size of lymphocytes that have neither squamous nor glandular morphology. Which of the following is most likely to be seen in this patient?
Hypercalcemia
Hyperphosphatemia
Hypocalcemia
Hypokalemia
Hyponatremia
