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HelpTest Code TBP Bilirubin, neonate
Additional Codes
| Epic Ordering Code | LAB3040971 |
| NBS code | LBC00135 |
| Service code | 31304 |
Specimen Requirements
Submit only one of the following:
| Preferred: | Acceptable: |
| Microvette container | Green Top microtainer (Li Heparin) |
Processing Requirements
Protect sample from light and send to laboratory immediately.
Specimen type: Plasma
Volume: 0.5 mL
Storage/transport requirements: Refrigerated
Specimen Stability
| Specimen Type | Plasma |
|---|---|
| Ambient | 2 hours |
| Refrigerate | Reject |
| Frozen | Reject |
Specimen Condition
| Haemolysis | Not available |
|---|---|
| Icterus | Not available |
| Lipaemia | Not available |
| Others | Not available |
Methodology
Spectrophotometry
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
Full Term Baby
| 0 – < 1 day | 31 – 103 umol/L |
|---|---|
| 1 – < 2 days | 103 – 120 umol/L |
| 2 – 4 days | 68 – 103 umol/L |
| 5 – 14 days | 5 – 30 umol/L |
Premature Baby
| 0 – < 1 day | 17 – 103 umol/L |
|---|---|
| 1 – 2 days | 103 – 137 umol/L |
| 3 – 5 days | 171 – 205 umol/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Diagnosis of neonatal jaundice.
Monitoring the efficacy of neonatal phototherapy.
Alias
Neonatal Bilirubin
LOINC Code Information
14631-6
Update
Last updated 15/05/2026