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Alkaline Phosphatase  (ALK PHOS)

Synonyms:  Alkaline phosphatase, serum
Specimen:  Blood; (1) SST (serum separator), Red (no preservative) or Green (lithium heparin) top vacutainer tube.
                        Volume:  Full primary tube
Minimum Volume:  100 microL (0.1 mL).
Collection:  If tube other than an SST or PST (plasma separator tube) is collected, transfer serum to a tightly capped plastic aliquot tube within 2 hours of collection for transport. Refrigerate at 2-8°C for 7 days; freeze at -20°C for longer storage.
Storage:  Remove serum/plasma from cells and transfer to a plastic aliquot tube tightly capped for transport or if testing is delayed. Refrigerate at 2-8 degrees C for 7 days
Rejection Criteria:  Citrate or EDTA plasma; improper labeling.
Reference Range:  0-4 years= 50-235 units/L 4-16 years= 50-370 units/L 16-20 years= 30-200 units/L Greater than 20 years= 40-135 units/L
Methodology: 
Test Use:  Measurements of alkaline phosphatase are used in the investigation of hepatobiliary and bone disease.
Additional Information:  Alkaline phosphatase is present in high concentration in bone forming cells or osteoblasts, liver, kidney, the lining of the intestine, and placenta. Serum alkaline phosphatase is elevated in infancy and childhood. The highest levels occur within a few we
Testing Includes: 
Testing Facility:  AnMed Health Laboratory