Lab Dept:

Chemistry

Test Name:

ALKALINE PHOSPHATASE

General Information

Lab Order Codes:

ALK

Synonyms:

ALK; Alk Phos; Alk Phosphatase; ALP

CPT Codes:

84075 – Phosphatase, alkaline

Test Includes:

Alkaline phosphatase concentration reported in U/L.

Logistics

Test Indications:

Alkaline phosphatase measurements are of particular interest in the investigation of two groups of conditions: hepatobiliary disease and bone disease associated with increased osteoblastic activity.

Lab Testing Sections:

Chemistry

Phone Numbers:

Minneapolis:

Saint Paul:

612-813-6280

651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

4 hours

Special Instructions:

N/A

Specimen

Specimen Type:

Blood

Container:

Green top(Li Heparin) tube preferred
Alternate tube: Red top (plain, no gel) tube

Draw Volume:

0.6 mL blood

Processed Volume:

0.2 mL serum/plasma

Collection:

Routine venipuncture. Mix tubes containing anticoagulant by gentle inversion.

Special Processing:

Lab Staff: Centrifuge specimen, remove serum/plasma aliquot into a plastic tube. Store at refrigerated temperatures.

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimen, improperly collected specimen

Interpretive

Reference Range:

Age:

Males (U/L)

Females (U/L)

0 – 1 year:

126 – 668

126 – 610

1 – 2 years:

126 – 460

126 – 573

2 – 7 years:

126 – 402

126 – 471

7 – 10 years:

42 – 436

42 – 488

10 – 13 years:

42 – 500

42 – 542

13 – 17 years:

42 - 504

13 – 15 years:

42 – 444

17 – 19 years:

42 - 243

15 – 19 years:

42 – 168

>19 years:

42 – 174

42 – 119

Critical Values:

N/A

Limitations:

N/A

Methodology:

Enzymatic 37°C

References:

ALP Flex® reagent cartridge insert sheet Siemens Healthcare Diagnostics Inc. 2008-04-16 J PN 717015.001 - US

Clinical Significance, Dade Behring Inc., Glasgow Business Community, Mailbox 531, P.O. Box 6101, Newark, Delaware 19714

Biorad Liquichek Unassayed Chemistry Control Product Insert (10/2005) Bio-Rad Laboratories, Irvine, CA 92618