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Test ID HTLVC Human T-Cell Lymphotropic Virus Types 1 and 2 (HTLV-1/-2) Antibody Screen with Confirmation, Spinal Fluid

Ordering Guidance

This test is for cerebrospinal fluid specimens only. For serum specimens, order HTLVI / Human T-Cell Lymphotropic Virus Types I and II Antibody Screen with Confirmation, Serum.

Necessary Information

Date of collection is required.

Specimen Required

Collection Container/Tube: Sterile vial

Specimen Volume: 1 mL

Collection Instructions: Submit spinal fluid specimen from collection vial 1.

Useful For

Qualitative screening detection of human T-cell lymphotropic virus types 1 and 2 (HTLV-1/-2) specific antibodies with confirmation and differentiation between HTLV-1 and HTLV-2 infection


This test should not be used as a screening or confirmatory test for any specimen other than spinal fluid.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
HTLLC HTLV -1/-2 Ab Confirmation, CSF Yes No

Testing Algorithm

If human T-cell lymphotropic virus types 1 and 2 (HTLV-1/-2) antibody is reactive, then HTLV-1/-2 antibody confirmation by line immunoassay will be performed at an additional charge.

Method Name

Enzyme Immunoassay (EIA)

Reporting Name

HTLV-1/-2 Ab Screen, CSF

Specimen Type


Specimen Minimum Volume

0.6 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
CSF Frozen (preferred) 30 days
  Refrigerated  14 days

Reference Values


Day(s) Performed

Monday, Tuesday, Thursday, Friday

Report Available

1 to 4 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information


86689 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HTLVC HTLV-1/-2 Ab Screen, CSF 22361-0


Result ID Test Result Name Result LOINC Value
604934 HTLV-1/-2 Ab Screen, CSF 22361-0


If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.