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HelpTest Code ICG Indocyanine Green Test
Additional Codes
| Epic Ordering Code | LAB3053537 |
| NBS code | LBC06563 |
| Service code | 31957 |
Specimen Requirements
Submit the following immediately:
| Before ICG Injection | 15 mins after ICG Injection |
| 2x Gold Top | 1x Gold Top |
Protect specimen from light by wrapping the container/tube with aluminium foil.
It is important to include the bottle of ICG dye together with the samples.
Processing Requirements
Protect both blood specimens from light
Specimen type: Serum
Volume: 0 min specimen – 3.0 mL ,
15 min specimen – 1.5 mL
Storage/transport requirements: Refrigerated
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | Not available |
| Refrigerate | 5 days |
| Frozen | Not available |
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others: Bottle of ICG dye not included | Reject |
Methodology
Spectrophotometry
Days and Times Performed
Monday through Friday, TAT 3 - 5 days
Reference Interval
0 – 14.9%
Useful For
Liver function test, evaluating biliary clearance
Update
Last updated 31/07/2026
Referring / Testing Laboratory
National University Hospital
Client Services, 67724912
Testing Laboratory
Department of Pathology
Singapore General Hospital
Outram Road
Singapore 169608
63214950
Alias
ICG Retention