LabCorp and its Specialty Testing Group, a fully integrated portfolio of specialty and esoteric testing laboratories.
1 - 4 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Serum or plasma
Red-top tube or gel-barrier tube or lavender-top (EDTA) tube
Centrifuge sample to separate serum or plasma. For non−gel-barrier tubes, transfer serum or plasma to a plastic transport tube.
7 days (stability determined by manufacturer or literature reference)
14 days (stability determined by manufacturer or literature reference)
Up to 6 months. (stability determined by manufacturer or literature reference)
Qualitative detection of antibodies to human T-lymphotropic virus, types 1 and/or 2 (HTLV-1/HTLV-2)
Chemiluminescent immunoassay (CLIA)
HTLV-1, a human type C retrovirus, is associated with adult T-cell leukemia, tropical spastic paraparesis, and other demyelinating and neoplastic conditions. More recently, HTLV-1 infection has been shown to be associated with T- and B-cell chronic lymphocytic leukemias (CLL), multiple myeloma, some cases of non-Hodgkin lymphoma, polymyositis, arthritis, Kaposi sarcoma, uveitis, strongyloidiasis, and mycosis fungoides. Type 1 HTLV is irregularly distributed throughout the world, as opposed to type 2 virus, which is a new world virus, more common among Americans in North, Central, and South America. HTLV-2 was first isolated from a patient with T-lymphocytic hairy cell leukemia but has not been unequivocally proven to be a pathogen. Recent findings suggest that HTLV-2 may be associated with a number of other leukemias and lymphomas. A high rate of HTLV-2 seropositives has been observed among intravenous drug users. Both HTLV-1 and HTLV-2 are tropic for CD4 lymphocytes and can be transmitted by sexual contact, IV drug use, blood products, transplacentally, and through breast milk.
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