Biochemistry · Vitamins and Minerals

Calcium and phosphorus metabolism

6 min read

Quick Orientation

Section

Definition

Objective
Understand the core idea
Keywords
Calcium, 9 to 11 mg/dL, Phosphorus

Distribution, Sources and Absorption

Objective
Learn the main facts and relationships
Keywords
duodenum, jejunum, 4.5 to 5.5 mEq/L

Plasma Calcium and Its Forms

Objective
Learn the main facts and relationships
Keywords
ionized, protein-bound

Hormonal Regulation of Plasma Calcium

Objective
Track activators, inhibitors and feedback
Keywords
calcitriol, parathyroid hormone (PTH), calcitonin

Ca:P Ratio, Excretion and Serum Phosphate

Objective
Learn the main facts and relationships
Keywords
Ca × P product, 10 mg/dL, 2 mg/dL

Clinical Correlation

Objective
Connect the mechanism to clinical findings
Keywords
Hypercalcemia, hyperparathyroidism, Hypocalcemia

Definition