Dengue Fever Virus Ab, IgG, Serum

Order Code:	DENG
Epic Lab Code:	LAB2989
Order Form:	A-1a Miscellaneous Request or Epic Req

Commercial Mail-out Laboratory
6240 RCP
356-3527

Specimen:

Serum

Collection Medium:

Red top tube

Minimum:

Preferred Adult Minimum: 1.0 mL serum Absolute Adult Minimum: 0.2 mL serum

Rejection Criteria:

Severely lipemic, contaminated, heat-inactivated, or hemolyzed specimens.

Delivery Instructions:

Submit specimen to laboratory as soon as possible after collection period is completed.

Analytic Time:

2 weeks upon receipt at reference laboratory

Reference Range:

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.

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.

Comments:

Acute and convalescent specimens must be labeled as such paralled testing is preferred and convalescent sample must be received within 30 days of acute.

Methodology:

Enzyme-Linked Immunosorbent Assay

CPT Code:

86790