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HelpTest Code CBS CSF Bilirubin Spectrophotometry (Xanthochromia)
Additional Codes
| Epic Ordering Code | LAB3040836 |
| NBS code | LBC13166 |
| Service code | 36838 |
Specimen Requirements
Submit the following immediately:
Both blood and CSF specimens are required. Send the specimens together with the completely filled TTSH Spectrophotometry Request Form.
Protect specimen from light by wrapping the container/tube with aluminium foil.
Blood
Container: Gold Top
CSF
Container: Plain Sterile Container
Processing Requirements
Blood
Specimen Type: Serum
Volume: 0.5 mL serum
Storage/transport requirements: Refrigerated
CSF
Protect specimen from light by wrapping the container/tube with aluminium foil.
Specimen Type: CSF
Volume: 1.5 mL
Storage/transport requirements: Refrigerated
Dispatch specimens to TTSH as soon as possible upon receipt.
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 8 hours |
| Refrigerate | 4 days (Preferred) |
| Frozen | Not available |
| Specimen Type | CSF |
|---|---|
| Ambient | 4 hours |
| Refrigerate | 1 day (Preferred) |
| Frozen | Not available |
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others: Specimen not protected from light | Reject |
Reference Interval
An interpretive report will be provided.
Update
Last updated 08/04/2026
Referring / Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Testing Laboratory
Clinical Chemistry Laboratory
Tan Tock Seng Hospital
11 Jalan Tock Seng
Singapore 308433
Tel: 63578949