Calcium/Phosphorus/Vitamin D (mason) Flashcards
Normal Total Serum Calcium
8.4-10.2mg/dL
Normal Ionized Serum Calcium
4.3-5.3mg/dL
Vitamin D: Bone Resorption
Increase Ca++, PO4
Vitamin D: Renal Absorption
Increase Ca++, PO4
Vitamin D: Small Intestine Absorption
Increase Ca++, PO4
NET Effect: Vitamin D
Increase Ca++, PO4
PTH: Bone Resorption
Increase Ca++, PO4
PTH: Renal Absorption
Increase Ca++, DECREASE PO4 (MAJOR)
*PTH induces kidneys to increase phosphorous elimination
PTH: Small Intestine Absorption
Increase Ca++, PO4
NET Effect: PTH
Increase Ca++, Decrease PO4
Calcitonin: Bone Resorption
Decrease Ca++, PO4
Calcitonin: Renal Absorption
Decrease Ca++, PO4
Calcitonin: Small Intestine Absorption
Decrease Ca++, PO4
NET: Calcitonin
Decrease Ca++, PO4
Liver Vitamin D Metabolism
Dietary Vitamin D –> Calcidiol (25-OH D)