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HelpTest Code TP Total Protein, serum
Additional Codes
| Epic Ordering Code | LAB118 |
| NBS code | LBC10920 |
| Service code | 31011 |
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: 0.5mL
Specimen Stability
| Specimen Type | Serum/Plasma |
|---|---|
| Ambient | 7 days |
| Refrigerate | 7 days |
| Frozen | 3 months |
Specimen Condition
| Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | Alert/Reject |
| Others | Not applicable |
Methodology
Colorimetry
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
| Age | |
|---|---|
| 0 – 14 days | 53 – 83 g/L |
| 15 – < 1 yr | 44 – 71 g/L |
| 1 – 5 yrs | 61 – 75 g/L |
| 6 – 8 yrs | 64 – 77 g/L |
| 9 – 18 yrs | 65 – 81 g/L |
| ≥ 19 yrs | 60 – 80 g/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Liver function test.
Marker of nutritional status.
Establish hyperproteinaemia or hypoproteinaemia.
Update
Last updated 28/07/2026
LOINC Code Information
2885-2