Singapore General Hospital will NEVER ask you to transfer money over a call. If in doubt, call the 24/7 ScamShield helpline at 1799, or visit the ScamShield website at www.scamshield.gov.sg.

Help Us Improve Your Experience:

We’d love to hear from you! Rate the SGH website and share your feedback so we can enhance your online experience and serve you better. Click here to rate us

IMMUNOGLOBULIN G (IgG), SERUM

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

​3 mL plain blood

Method

​Immunoassay

Reference Interval / Value

​0 – 3 yrs : 2.32 - 14.11 g/L

4 – 9 yrs : 5.04 - 14.74 g/L

≥ 10 yrs : 5.49 - 17.11 g/L

Turnaround Time

​Mean = 4 hrs, Range: 3 – 5 hrs

Day(s) Test Set up

​Monday – Saturday

Last Updated - 13 Jun 2025