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IgG (087-0648)
Test Mnemonic:

IGG

Specimen Requirements:
Test Included:

Immunoglobulin G

Collection:

Routine venipuncture and lumbar puncture

Container:

7mL of blood in SST (gel barrier) tube or red-topped tube. (Min.: 3mL of blood)CSF: 7 mL sterile plastic tube with screw cap. (Min.: 3 mL).  

Minimum Volume:

3 mL of blood and 3 mL of CSF

Storage/Transport:

Delivered to Sample Management within 2 hours of collection.   

Specimen Preparation:

Allow specimen to clot completely at room temperature. Centrifuge to separate serum from cells within 2 hours of collection. Transfer serum from collection tube to labeled plastic transport tube. 

Stability:

 

Blood: Room temperature for ≤ 8 hours, refrigerated for ≤ 72 hours or frozen for ≤ 6 months. (Avoid repeated freeze/thaw cycles).  CSF: Refrigerated.

Causes for Rejection:

Incomplete and/or incorrect sample identification, improper storage/transport, and gross hemolysis or lipemia.

Reference Range:

By report (reports may vary based on instrumentation, patient age and sex)

Turnaround Time:

Monday- Sunday: 7am - 3:00pm

Methodology:

Nephelometry

Performed:

Monday- Sunday: 7am - 3:00pm

Lab:

Special Chemistry

CPT 4 Code:

82784

Note:

Director approval required for STAT requests.

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
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