Sep 16, 2015




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Chemistry

Alkaline Phosphatase

Alkaline Phosphatase (ALKP) Chemistry Lab Test

Name: Alkaline Phosphatase

Test Name: Alkaline Phosphatase

Health Link Test Code: ALKP

LIS Test Code: ALKP

CPT Code(s): 84075

Included In: Comprehensive Metabolic Panel

Methodology: p-Nitrophenylphosphate

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Specimen: Blood

Collection Container: Green cap with yellow ring (PST)

Also Acceptable: Green top, Red cap with yellow ring (SST), Red top

Collection Volume: 4 mL

Pediatric Collection Volume: 0.4 mL

Stability Ambient:

7 days

Stability Refridgerated:

7 days

Stability Frozen:

2 months

Sample Analyzed: Plasma or serum

Testing Volume: 1 mL

Pediatric Testing Volume: 0.2 mL

Specimen Processing:

Centrifuge. If a complete barrier has not formed, transfer cell-free plasma/serum to plastic vial. Refrigerate.

Specimen Transport:

Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.



Male Female
Age (years) U/L Age (years) U/L
0-11 <500 1-11 <500
12-14 <750 12-15 62-280
15-16 89-365 16 and up 40-150
17-18 59-164    
19 and up 40-150    


Interpretation Type: Reference Interval