Ordering Recommendation
Mnemonic
BSAP
Methodology

Quantitative Chemiluminescent Immunoassay

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Serum separator tube. Also acceptable: Green (sodium or lithium heparin).

Specimen Preparation

Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.3 mL)

Storage/Transport Temperature

CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.

Unacceptable Conditions

Urine. Grossly hemolyzed specimens.

Remarks
Stability

After separation from cells: Ambient: 2 hours; Refrigerated: 48 hours; Frozen: 2 months

Reference Interval

Effective November 14, 2011

Age
Male
Female
6 months-2 years 31.6- 122.6  µg/L 33.4- 145.3 µg/L
3-6 years 31.3-103.4 µg/L 32.9-108.6 µg/L
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
18-24 years 10.0- 28.8 µg/L
25 years and older 6.5-20.1 µg/L
Premenopausal Female 4.5-16.9 µg/L
Postmenopausal Female 7.0-22.4 µg/L

Interpretive Data

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.

No compliance statements are in use for this test.

Note
Hotline History
N/A
Components
Component Test Code* Component Chart Name LOINC
0070053 Bone Specific Alkaline Phosphatase 17838-4
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Alkaline Phosphatase
  • Alkaline Phosphatase, Bone
  • BAP
  • Ostase
  • Phosphatase
  • Skeletal Alkaline Phosphatase
Bone Specific Alkaline Phosphatase