PHOSPHATE Flashcards
MAJOR INTRACELLULAR ANION
Component of phospholipids, nucleic acids, creatine phosphate and ATP
PHOSPHATE
Phosphate in diet is MAXIMALLY absorbed in the jejunum
Small Intestine
Percentage of Phosphate in bones
85%
Percentage of Phosphate in extracellular environment
15%
found in many parts of tissues/cells
Omnipresent
T/F. Growth Hormone increases renal excretion of phosphate
False, decreases renal excretion
T/F. The level of phosphate is INVERSELY RELATED TO CALCIUM
True
T/F. In the kidneys through the action of the PTH, calcium is absorbed while phosphate is excreted.
True
FORMS OF PHOSPHATE IN CELLS
Organic
Inorganic
Inside the cell; the principal anion in the cell
Organic
Outside the cell; blood buffer present in the plasma or serum
The one measured in tests
Inorganic
CAUSE OF HYPOPHOSPHATEMIA
Hyperparathyroidism (↑ renal excretion)
Vitamin D Deficiency or antacid use (↓intestinal absorption)
CAUSE OF HYPERPHOSPHATEMIA
Hypoparathyroidism
Lymphoblastic leukemia, intensive exercise, neoplastic disorders
Hypervitaminosis
What are the tube and specimen needed for Specimen Collection of Phosphate?
Serum, Plasma (lithium heparin), 24-hour urine
T/F. Hemolysis cause False ↑
True