92840:BONE SPECIFIC ALKALINE PHOSPHATASE

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92840:BONE SPECIFIC ALKALINE PHOSPHATASE
Alias Names: BSAP
Methodology: Chemiluminescent Immunoassay (CLIA)
Edit Date: 5/18/2009
Performed: Daily
Released: 24-48 hours after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 84080-90
Specimen Collection Details
Collection: One 7.5 mL serum separator tube (SST). Also acceptable: One 4 mL green top tube (heparin).
Handling: Allow to clot, centrifuge and separate serum or plasma from cells and pour into plastic vial. Freeze.
Stability: After separation from cells: 2 hours ambient, 48 hours refrigerated, or 1 year frozen.
Standard Volume: 0.5 mL serum or plasma.
Minimum Volume: 0.3 mL serum or plasma.
Transport: Frozen on dry ice.
Rejection Criteria: Grossl hemolysis.

AGE MALE FEMALE
7-9 years 48.6-140.4 µg/L 36.3-159.4 µg/L
10-12 years 48.8-155.5 µg/L 44.2-163.3 µg/L
13-15 years 27.8-210.9 µg/L 14.8-136.2 µg/L
16-17 years 15.3-126.8 µg/L 10.5-44.8 µg/L
25 years and older 6.5-20.1 µg/L
Premenopausal 4.5-16.9 µg/L
Postmenopausal 7.0-22.4 µg/L
Note: Reference intervals have not been established for children younger than 7 years or males 18-24 years of age.

Liver alkaline phosphatase can affect the measurement of bone specific alkaline phosphatase in this assay. Each 100 U/L of liver alkaline phosphatase contributes an additional 2.5 to 5.8 µg/L to the bone specific alkaline phosphatase result.