Laboratory examination also implied primary hyperparathyroidism (PHPT) with an elevated plasma calcium level of 3.24 mmol/L (normal range 2.09–2.54), an elevated parathyroid hormone (PTH) level of 90.78 pg/mL (normal range 15–65), and a decreased phosphorus level of 0.62 mmol/L (normal range 0.89–1.6). This evidence concerns the gene PTH and primary hyperparathyroidism.