Specimen Collection

Sample stability:

• 4 months at 15-25 ^o C
• 8 months at 2-8 ^o C
• 8 months at -20 ^o C

4 mL PST Plasma (Preferred)

3.5 mL Adult Heparin Plasma

4 mL Plain Serum

3.5 mL SST Serum

2 mL Paediatric Microsample Blood

1 mL Paediatric Micro-PST Plasma

1 mL Paediatric Micro-SST Serum

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Reference Intervals

Uncertainty of measurement: 5%

After consultation with local immunopathologists, from 10/2/2020 the reference intervals for plasma/serum immunoglobulins IgG on children <19 years have been revised. This revision takes into account of recent paediatric reference interval studies and aims to better reflect the physiological state in newborn infants and age related changes up to the age of 18. Reference intervals for adults remain the same. This revision coincided with the change of measurement platform for these tests at LabPlus.

IgG	(g/L)
Newborn to <2 weeks	3.0 - 13.7
>=2 weeks to <6 weeks	1.2 - 6.0
>=6 weeks to <6 months	1.2 - 7.0
>=6 months to <12 months	3.0 - 10.5
>=1 year to <4 years	3.0 - 11.2
>=4 years to <10 years	5.0 - 13.3
>= 10 years to <19 years	6.0 - 15.0
>=19 years to <70 years	7.0 - 16.0
>=70 years	6.0 - 15.0

Turnaround Time: Within 4 hours

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Assay Method

Principle: Immunoturbidometric

Analyser: COBAS

Diagnostic Use and Interpretation

See Immunoglobulins

Immunoglobulins

Last updated at 12:04:07 19/04/2024