Sign In
St. John Health System
Lab Catalog


Index:

West Nile Antibodies IgG and IgM

Order Name WEST N IFA
Test Number: 3608655
Revision Date 08/29/2008
Test Name Methodology LOINC Code
West Nile Antibodies IgG and IgM
Indirect Fluorescent Antibody  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Serum Clot Activator SST Refrigerated
Instructions It has been suggesting for the Oklahoma/Kansas area that the St. Louis Virus also be tested in until we can gather enough data from the Spring and Summer seasons. Stability: 1 Week Refrigerated; 2-3 Months Frozen.
GENERAL INFORMATION
Testing Schedule Season and volume dependent. 
Expected TAT 2-5 Days 
Clinical Use West Nile Virus is a flavivirus recently associated with an outbreak of encephalitis in the Eastern United States. West Nile Virus IgM is usually detectable by the time symptoms appear, but IgG may not be detectable until day 4 or day 5 of illness. Antibodies induced by West Nile Virus infection show extensive crossreactivity with other flaviviruses, including Dengue Fever Virus and St. Louis Encephalitis Virus. 
CPT Code(s) 86789X2
Internal Comments Group Test
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Immunology - Serology