P1NP has replaced BALP as the preferred bonemarker for bone formation.
BALP is a less specific test and now only available by prior arrangement.
It may be useful in some research studies.
Department
Endocrinology Lab
Delphic Registration Code
BALP
Synonyms
Bone ALP
Ostase
Test Code
6556
Specimen Type
Serum
Plasma
Specimen Requirements
Tube/Container Type:
Preferred
Serum (Red Cap)
Preferred if West Coast
SST II (Gold Cap)
Acceptable
SST II (Gold Cap)
Lithium Heparin - Non-gel (Green Cap)
Lithium Heparin - Gel (Light Green Cap)
Preferred Sample Volume (ml)
2.0
No of Samples Required
1
Aliquot Instructions
Sample Type
Serum
Plasma
Minimum Volume (ml)
0.5
Transport to Lab
Frozen
If overnight - Frozen
Interpretation
1. This method is not interchangeable with other alkaline phosphatase assays. While it shows relatively low interference from the liver ALP isoenzyme, raised levels (liver ALP>110 U/L) may influence BALP results.
2. Results are not valid in the presence of EDTA. Samples will be screened for EDTA before BALP assay.