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Hyperparathyroidism - Primary vs Secondary vs Tertiary 
Lab Comparison:
 • Primary Hyperparathyroidism: ↑→PTH, ↑Calcium, ↑Vitamin D,
Tertiary Lab Comparison ... : ↑→PTH, ↑Calcium ... : ↑PTH, ↓→Calcium ... Symptoms: Commonly no signs ... #diagnosis #endocrinology