Reference Interval:
1.64 IV or less: Negative - No significant level of detectable dengue fever virus IgG antibody.
1.65-2.84 IV: Equivocal - Questionable presence of antibodies. Repeat testing in 10-14 days may be helpful.
2.85 IV or greater: Positive - IgG antibody to dengue fever virus detected, which may indicate a current or past infection.
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| Interpretive Data: |
Patients in the early stage of dengue fever virus infection may not have detectable IgG antibodies, as the IgG response may take several weeks to develop. In the absence of detectable IgG, testing for IgM class antibody is strongly recommended. The best evidence for current infection is a significant change on two appropriately timed specimens, where both tests are done in the same laboratory at the same time.
Refer to Statement D under Testing Information at http://www.aruplab.com.
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| CPT Code(s): |
86790
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Cross References: |
Breakbone Fever (Dengue Fever Virus Antibody, IgG), Flavivirus (Dengue Fever Virus Antibody, IgG), Hemorrhagic Fever (Dengue Fever Virus Antibody, IgG) |