General

Synonym/Acronym:
N/A

Rationale
To assist in the diagnosis of West Nile virus (WNV) infection.

Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.

Normal Findings
(Method: Enzyme-linked immunosorbent assay [ELISA] is generally used for clinical specimens, and polymerase chain reaction [PCR] is generally used for testing specimens from potential donors of blood products, cellular therapy, or solid organ transplants.) Normal findings for ELISA (IgG and IgM): negative (indicating absence of WNV IgG/IgM antibodies); for NAT viral RNA: negative (indicating absence of WNV RNA).

Critical Findings and Potential Interventions
Specific infectious organisms are required to be reported to local, state, and national departments of health. Lists of specific organisms may vary among facilities. State health departments provide information regarding reportable diseases, which can be accessed at each state health department website. The Centers for Disease Control and Prevention (CDC) provides information regarding national notifiable diseases at https://ndc .services.cdc.gov/search-results-year.