ALP (Alkaline Phosphatase) Isoenzyme
DefinitionA blood test to measure the amounts of different forms of alkaline phosphatase.
Alkaline phosphatase is an enzyme in the blood, intestines, liver, and bone cells. Its chemical structure varies (called isoenzymes) depending on where it is produced. This makes it possible to determine where a problem has originated. When bones are growing, liver cells are damaged, or a biliary obstruction occurs, alkaline phosphatase levels rise considerably.
Pictures & Images
See all Pictures & Images
Why is the Test Performed?
This test is useful in diagnosing:- liver disease (jaundice-yellowing of the skin and eyes)
- the cause of liver disease
- parathyroid disease
- Vitamin D deficiency
- the cause of pain in the upper abdomen
- bone diseases
It can also be used to monitor:- patients on medications that may be harmful to the liver
- liver production (used in conjunction with other tests)
|