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Laboratory Test Directory

Immunoglobulin G Subclass 4 (Updated)

Components

Name Method Department Units
Immunoglobulin G Subclass 4 Quantitative Nephelometry
Send Out mg/dL

Specimen Requirements

Plasma Spun

Container Type Container Size Specimen Volume
Alternate

Green tube (Lithium heparin), No Gel

3 mL 1 mL
Alternate

Green tube (Sodium heparin), No Gel

3 mL 1 mL
Stability

Room temperature - 2 hour(s)
Refrigerated - 8 day(s)
Frozen - 6 month(s)

Specimen Preparation

  • Centrifuge, remove plasma/serum and refrigerate

Serum Spun, Plasma Spun

Container Type Container Size Specimen Volume
Preferred

Red tube, (no anticoagulant), No Gel

3 mL 1 mL
Alternate

Green tube (Lithium heparin), No Gel

3 mL 1 mL
Alternate

Green tube (Sodium heparin), No Gel

3 mL 1 mL
Alternate

Red Tube (no anticoagulant) with Gel

3 mL 1 mL
Alternate

Gold tube, (SST) with Gel

3.5 mL 1 mL
Alternate

Green tube (Lithium heparin), with Gel

3 mL 1 mL
Stability

Room temperature - 2 hour(s)
Refrigerated - 8 day(s)
Frozen - 6 month(s)

Specimen Preparation

  • Centrifuge within 2 hours, separate supernatant and refrigerate

Reasons for Rejection

  • Delayed or improper handling
  • Not received at proper temperature

CPT Code

  • 82787