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Test Code LAB93309 Zika RT-PCR

Reporting Title



In accordance with CDC guidelines, RT-PCR testing should only be performed during th efirst two weeks after symptom onset.  A negative RT-PCR result does not exclude Aila virus infection and serum should be analyzed by IgM antibody (serological ) testing.  A negative serologic test rules out infection with Zika virus if drawn greater than fourteen days after symptom onset. 

A positive or borderline IgM antibody Zika serology tests must be forwarded for confirmation by plaque-reduction neutralization testing (PRNT)  this is to distinguish Zika antibodies from other Flaviviruses, such as Dengue.  PRNT is performed by CDC or a CDC-designated confirmatory testing laboratory to confirm positive, borderline, or inconclusive IgM results.  Patient will be charged for this testing.

Specimen Requirements

Draw blood in a gold-top serum gel tube(s). Spin down and send 2.0 mL of serum ambient temperature.

Serum from a red-top tube is also acceptable

Reference Values

Not Detected

Day(s) Test Set Up

Monday - Friday

Turn around time 1-2 days

Test Classification and CPT Coding


Performing Laboratory

Viracor_IBT Laboratories