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Apr 18, 2017

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100

UWHC,UWMF,

Clinical Hub,Tools & Resources,UWHC Lab Test Directory,Chemistry

IgG

IgG (XIGG) Chemistry Lab Test

Name: IgG

Test Name: IgG

Health Link Test Code: XIGG

LIS Test Code: IGG

CPT Code(s): 82784

Included In: IGAM

Methodology: Immunoturbidimetry

Clinical Information:

Measurement of IgG aids in the diagnosis of autoimmune diseases, lymphoid malignancies and immune deficiencies.

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Specimen: Blood

Collection Container: Red cap with yellow ring (SST)

Also Acceptable: Red top

Collection Instructions:

If there is the possibility that the patient has a cryoprotein, specimen MUST BE KEPT WARM UNTIL AFTER TESTING IS COMPLETE. Indicate specimen is to be drawn warm.

Collection Volume: 3 mL

Pediatric Collection Volume: 1 mL

Stability Ambient:

4 months

Stability Refridgerated:

8 months

Stability Frozen:

8 months

Sample Analyzed: Serum

Testing Volume: 1 mL

Pediatric Testing Volume: 0.3 mL

Specimen Processing:

Centrifuge within 2 hours of draw. Transfer cell-free serum to plastic vial. Refrigerate. Freeze serum if not assayed within 72 hours.

 

IMPORTANT: IF THE PATIENT HAS A CRYOPROTEIN, keep blood specimen at 37°C during entire processing procedure. Place collection tube in the 37°C incubator for two hours. Spin tube at 3000 rpm for 10 minutes at 37°C. Remove spun serum to labeled tube and forward to UWHC Chemistry Lab.

Specimen Transport:

Transport specimen to Laboratory. Transport with coolant pack if coming from clinic location. Transport frozen serum aliquot on dry ice to Laboratory.

 

Important: For samples on patients suspected of having a cryoprotein, specimen MUST be processed prior to transport if coming from clinic location. Transport specimens with coolant pack after processing is complete.

Unacceptable Criteria:

Grossly hemolyzed specimens are not acceptable.

Interpretation:

Age Male (mg/dL) Female (mg/dL)
0-1 month 397-1765 391-1737
1 month-1 year 205-948 203-934
1 year-2 years 475-1210 483-1226
2-80 years 540-1822 552-1631

Interpretation Type: Reference Interval