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INDOCYANINE GREEN (ICG) RETENTION TEST, SERUM

Synonym(s):
Lab Section Category
View write-up
Indications

For assessment of liver function

Specimen Required

​5 mL plain blood prior to ICG injection.

5 mL plain blood exactly 15 mins after injection.

Remainder ICG in syringe should be sent for calibration purpose.

Method

​Spectrophotometry

Reference Interval / Value

≥ 13 yrs : < 15%

Turnaround Time

​Mean = 4 hrs, Range: 3 – 5 hrs

Day(s) Test Set up

​Monday – Friday

Change History Notes

  • 13 Apr 2020 05:50 PM

    ​Description, Indications and Reference Interval are updated on 13 Apr 2020.

Back: Pathology Laboratory Services

Last Updated - 13 Jun 2025