IgG 4

eD-H Order Code

LAB1000

Specimen Collection Information

Specimen	Minimum Test Volume	Container	Special Handling
Blood	1.0 ML

Specimen Transport Temperature

Refrigerated

Reference Ranges / Critical Values

Assay	Gender	Age Range	Normal Range	Critical Values	Units
IgG 4	All	6 Months – 1 Years	1.0 -23.0		mg/dL
		1 Years – 18 Months	1.0 -44.0		mg/dL
		18 Months – 2 Years	1.0 -56.0		mg/dL
		2 Years – 3 Years	1.0 -84.0		mg/dL
		3 Years – 4 Years	2.0 -87.0		mg/dL
		4 Years – 6 Years	2.0 -96.0		mg/dL
		6 Years – 9 Years	3.0 -105.0		mg/dL
		9 Years – 12 Years	2.0 -120.0		mg/dL
		12 Years – 18 Years	4.0 -122.0		mg/dL
		18 Years – 150 Years	3.9 -86.4		mg/dL

Specimen Stability

Chemistry Blood and Urine Analyte Stability Chart

Interpretive Data

Assay Display	Interpretive Data
IgG 4	As of 10/12/2021 IgG subclass analysis will be performed in the chemistry laboratory at Dartmouth-Hitchcock Medical Center. Please note the updated reference intervals associated with this change in testing location.

Day(s) Performed

Tuesdays and Thursdays

CPT(s)

82787

Performing Lab Section

Chemistry