Western Equine Encephalitis Antibody, IgM by IFA, Serum : ARUP Lab Tests

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Western Equine Encephalitis Antibody, IgM by IFA, Serum : 0098734

Mnemonic: WEST M SER

Methodology:	Semi-Quantitative Indirect Fluorescent Antibody
Performed:	Tue, Fri
Reported:	1-5 days
Specimen Required:	Collect: Serum separator tube. Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent." Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Plasma. Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens. Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year

Reference Interval: Less than 1:16
Interpretive Data:	This test is intended to be used as a semi-quantitative means of detecting western equine encephalitis virus-specific IgM in serum samples in which there is a clinical suspicion of western equine encephalitis virus infection. A positive result for IgM may suggest current or recent infection. This test should not be used solely for quantitative purpose, nor should the results be used without correlation to clinical history or other data. Because other members of the Alphavirus family, such as eastern equine encephalitis virus, show extensive cross-reactivity with western equine encephalitis virus, serologic testing for these species should also be performed.
CPT Code(s):	86654
Cross References:	Encephalitis Antibody, Western Equine IgM (Western Equine Encephalitis Antibody, IgM by IFA, Serum)

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