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Category: Parathyroid Diseases (PTH)

September 6, 2026

Primary Hyperparathyroidism: What High Calcium and PTH Reveal

Why calcium, PTH, vitamin D, kidney function, and urine calcium must be interpreted together. Primary hyperparathyroidism testing starts with a relationship: when blood calcium rises, parathyroid hormone (PTH) should fall. A PTH result that stays […]

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July 22, 2026

Understanding Vitamin D Tests: Forms, Results, and Health Roles

How 25-Hydroxyvitamin D, Vitamin D2/D3, and Calcitriol Tests Differ—and When Each Test May Be Useful

Vitamin D tests do not all measure the same form of vitamin D. Learn which blood test is generally used to evaluate vitamin D status, when D2 and D3 fractions may add context, and why […]

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July 8, 2026

Endocrine Disorders: Causes, Symptoms, Lab Tests, and Management

Understand how thyroid, adrenal, pituitary, pancreatic, parathyroid, and reproductive hormone disorders may affect your health—and which lab tests provide useful information.

Endocrine disorders are conditions that interfere with the production, release, transport, or action of hormones. Because hormones help regulate metabolism, blood sugar, growth, reproduction, stress responses, calcium balance, energy, and mood, an endocrine problem can […]

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