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Mayo Clinic Laboratories

Test Code ICG Indocyanine Green Test

Specimen Requirements

Specimen Type: Serum

Container/Tube: Gold Top (SSTII) / Red Top
Minimum volume: 0 min specimen – 3.0 mL serum, 15 min specimen – 1.5 mL serum

Collection Instructions: Collect 2 yellow tubes (2 x 5.0 mL) or 3 yellow child tubes (for 5 - 11 yrs old) or 12 yellow paeds tubes of blood prior to ICG injection. Collect another yellow tube of blood (1 x 5.0 mL) or 2 yellow child tubes (for 5 - 11 yrs old) or 6 yellow paeds tubes exactly 15 mins after injection. 
The remaining ICG in bottle must be sent along with the specimens. After collection, wrap all blood specimens in aluminium foil before sending to the laboratory

It is important to include the bottle of ICG dye together with the samples

For NUH staff please refer to link http://nuhweb/css/pharma/guidelinesProtocols.html Indocyanine Green (ICG-Pulsion)

Specimen Stability

Specimen Type   Serum
Ambient Not available 
Refrigerate 5 days
Frozen Not available 

Methodology

Spectrophotometry

Days and Times Performed

Monday through Friday, TAT 3 - 5 days

Specimen Condition

Haemolysis OK
Icterus OK
Lipaemia OK
Others: Bottle of ICG dye not included  Reject 

Reference Interval

0 – 14.9%

Referring / Testing Laboratory

National University Hospital
Clinical Chemistry, 67724346

 

Testing Laboratory

Department of Pathology

Singapore General Hospital

Outram Road

Singapore 169608

63214950

Useful For

Liver function test, evaluating biliary clearance

Service Code

31957

Alias

ICG Retention

Update

Last updated 10/12/2024