Bone Specific Alkaline Phosphatase

Label Mnemonic:	BSAP
Epic code:	LAB2731
Downtime form:	Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Commercial Mailout Laboratory
6240-8 RCP
356-8593

Specimen(s):

Serum

Collection Medium:

Red top tube 5 mL (Clot Activator)

Minimum:

Preferred Minimum: 0.5 mL
Absolute Minimum: 0.3 mL

Rejection Criteria:

Urine. Grossly hemolyzed specimens.

Delivery Instructions:

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

Turn Around Time:

24 hours upon receipt at reference laboratory (upon receipt in laboratory)

Reference Range:

Age                   Male                 Female
6 months-2 years      31.6-122.6 μg/L      33.4-145.3 μg/L
3-6 years             31.3-103.5 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 ug/L to the bone specific alkaline phosphatase result.

Comments:

NOTE: Reference intervals have not been established for children younger than 7 years of age or males 18-24 years.

Methodology:

Quantitative Chemiluminescent Immunoassay

CPT Code:

84080