A 40-year-old man comes to the physician for a follow-up appointment. His brother has rheumatoid arthritis. Laboratory findings are shown:
Sodium 138 mEq/L
Potassium 6.0 mEq/L
Calcium 8.8 mg/dL
Phosphate 4.1 mEq/L
Bicarbonate 20 mEq/L
Which of the following is most likely to be seen in this patient?
A) Decreased parathyroid hormone
B) Decreased urinary calcium
C) Increased adrenocorticotropic hormone
D) Kaliuresis
E) Zona glomerulosa adenoma
