Bone Specific Alkaline Phosphatase


Sunquest Code:ALKPB  
Epic Code:LAB1070Epic Name:BONE SPECIFIC ALK PHOSPHATASE
Synonyms:Alkaline Phosphatase, Bone Specific
Methodology:Chemiluminescent immunoassay
CPT Code:84080
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-2 days.


Collection Instructions

Specimen:Blood
Optimal Volume:1 mL
Minimum\Peds Volume:0.8 mL
Container:Red or gold (gel) (Green (lithium heparin, gel), Green (sodium heparin, no gel), Red (no gel))
Causes for Rejection:Gross hemolysis


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 0.5 mL, 0.3 mL minimum. Store in freezer within 2 hours.
Shipping Instructions:Ship on dry ice.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:70053 (BSAP)


Interpretive

Reference Range:

Age

Male, mg/L

Female, mg/L

6 mo-2y

31.6-122.6

33.4-145.3

3-6 y

31.3-103.4

32.9-108.6

7-9 y

48.6-140.4

36.3-159.4

10-12 y

48.8-155.5

44.2-163.3

13-15 y

27.8-210.9

14.8-136.2

16-17 y

15.3-126.8

10.5-44.8

25 y and older

6.5-20.1

 

Premenopausal Female

 

4.5-16.9

Postmenopausal Female

 

7.0-22.4

Reference intervals have not been established for children younger than 6 months of age or males 18-24 years.

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 mg/L to the bone specific alkaline phosphatase result.

 



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