Test Code ALP Alkaline Phosphatase

Additional Codes

Epic Ordering Code	LAB112
NBS code	LBC00055
Service code	31018

Specimen Requirements

Submit only one of the following:

Preferred:	Acceptable:
Yellow Top	Light Green Top

Processing Requirements

Allow specimen to clot for 30 mins (Yellow top) and centrifuge within 2 hours

Specimen type: Serum/Plasma

Volume: 0.5 mL

Specimen Stability

Specimen Type	Serum/Plasma
Ambient	7 days
Refrigerate	7 days (Preferred)
Frozen	7 days

Specimen Condition

Gross Haemolysis	Alert / Reject
Icterus	OK
Lipaemia	OK
Others	Not applicable

Methodology

Enzymatic Assay

Days and Times Performed

24 hrs, TAT 1 day

Reference Interval

Age	Male (U/L)	Female (U/L)
0 to < 15 days	90 – 273	90 – 273
15 days to <1 yr	134 – 518	134 – 518
1 yr to < 3 yrs	156 – 369	156 – 369
3 to < 6 yrs	144 – 327	144 – 327
6 to < 11 yrs	153 – 367	153 – 367
11 to < 16 yrs	113 – 438	64 – 359
16 to 29 yrs	–	44 – 107
16 to 21 yrs	56 – 167	–
≥ 30yrs	–	46 – 122
≥ 22 yrs	50 – 116	–

Testing Laboratory

National University Hospital

Clinical Chemistry, 67724346

Useful For

Assessment of liver profile.

Evaluation of metabolic bone disease.

Update

Last updated 16/07/2026

LOINC Code Information

6768-6