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HelpTest Code ALP Alkaline Phosphatase
Additional Codes
| Epic Ordering Code | LAB112 |
| NBS code | LBC00055 |
| Service code | 31018 |
Specimen Requirements
Submit only one of the following immediately:
Preferred: Gold Top
Acceptable: Green Top (Li Heparin)
Processing Requirements
Allow specimen to clot for 30 mins (Gold Top) and centrifuge within 2 hours
Specimen type: Serum/Plasma
Volume: 0.5 mL
Storage/transport requirements: Refrigerated
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 < 30 yrs | – | 44 – 107 |
| 16 to < 22 yrs | 56 – 167 | – |
| 30 to unspecified | – | 46 – 122 |
| 22 to unspecified | 50 – 116 | – |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Assessment of liver profile.
Evaluation of metabolic bone disease.
Update
Last updated 30/04/2026
LOINC Code Information
6768-6