Parathyroid hyperparathyroidism hypoparathyroidism Hypercalcemia hypocalcemia parathyroid disease thyroidectomy and calcium biotin supplement can cause falsely elevated or decreased PTH Links to this note Endocrine Parathyroid hypocalcemia related: Endocrine, Parathyroid, hypocalcemia after osteoporosis treatment, Hypercalcemia hyperparathyroidism related: Endocrine, Parathyroid hypoparathyroidism Keywords: Step 3, Medicine, Endocrine, Parathyroid