Laboratory Services

Alkaline Phosphatase

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Updated Test Information:

Test Description
Alkaline Phosphatase
Synonym(s)

ALP, Alk Phos

Test ID
ALKP
General Information

Values obtained with different assay methods should not be used interchangeably in serial testing. It is recommended that only one assay method be used consistently to monitor each patient's course of therapy. 

Specimen Type

Serum

Alternate Specimen Type

Red top tube, heparin plasma

Specimen Requirements

SST

Specimen Collection / Processing Instructions

SST - Separate serum or plasma from cells within 45 minutes of collection. If a Red top tube or Green top tube is used, transfer separated serum or plasma to a plastic transport tube.

Minimum Sample Volume

Preferred volume 1mL

Pediatric Min. Volume (if applicable)

500 uL

Stability

7 days at 15-25˚C
2 weeks at 2-8˚C
2 months at -20˚C

Methodology

Enzymatic

Estimated TAT

0-2 days

Testing Schedule

Monday-Saturday

CPT Code(s)

84075

Reference Range
  Males: (U/L) Females: (U/L)
0-14d 83-248 83-248
15d-<1y 122-469 122-469
1y-<10y 142-335 142-335
10y-<13y 129-417 129-417
13y-<15y 166-468 57-254
15y-<17y 82-331 50-117
17y-<19y 55-149 45-87
Adult 40-129 35-104
Performing Lab

Incyte Diagnostics

LOINC Code(s)

6768-6