The further laboratory blood tests revealed increased PTH level – 141.4 pg/mL (15–65 pg/mL), hypercalcemia with a calcium adjusted for albumin – 2.6 mmol/L (2.15-2.55 mmol/L), normophosphatemia – 0.85 mmol/L (0.74-1.52 mmol/L) daily normocalciuria – 2.9 mmol/day. The gene discussed is PTH; the disease is hypercalcemia disease.