West Nile IgG and IgM

Last Modified: 6/17/2019 10:27:19 AM


Medical Necessity Documentation:
Duplicate testing on this test is not acceptable per Medicare:  Testing to only be done every 3 days
Client Notes:  
Patient Preparation:  
Specimen Requirements: 2.0 mL Serum from a Red Top Tube in a Plastic Vial
Collection Instructions:  
Minimum Volume: 0.5 mL
Transport & Storage: Temperature/Stability:

48 hours Refrigerated
30 days Frozen


Specimen to be transported Refrigerated to PRMC within 48 hours of collection to be frozen by Immunology department to maintain specimen integrity until testing occurs. Do not transport Frozen.
Reference Range:

IgG Antibody Not Detected: < 1.30
IgG Antibody Equivocal: 1.30 - 1.50
IgG Antibody Detected: > 1.50

IgM Antibody Not Detected: < 0.90
IgM Antibody Equivocal: 0.90 - 1.10
IgM Antibody Detected: > 1.10
Critical Ranges:  
Test Comments: West Nile Antibodies may cross react with other Flaviviruses (E.G. Dengue, St. Louis Encephalitis, Eastern Equine Encephalitis, Yellow Fever
Methodology: EIA
Clinical Significance:  
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Days Performed: Monday
Sites Performed: Parkview Regional Medical Center
PHL Test Code: WNIL1
EPIC Test Code: IMO425
Included Tests: West Nile IgG; West Nile IgM
CPT Coding: 86788, 86789

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