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Test Code HTLV1-2* Human T-Cell Lymphotropic Virus Types I and II Antibody Screen with Confirmation, Serum

Additional Codes

Mayo Test ID

Reporting Name

HTLV-I/-II Ab Screen, S

Useful For

Qualitative detection of human T-cell lymphotropic virus types I and II (HTLV-I and HTLV-II)-specific antibodies with confirmation and differentiation between HTLV-I and HTLV-II infection


This test should not be used to screen blood, human cells, tissues, or solid-organ donors.


This test is not intended for use on cord blood specimens.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
HTLVL HTLV-I/-II Ab Confirmation, S Yes No

Testing Algorithm

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

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type


Ordering Guidance

This test is for serum specimens only. For spinal fluid specimens, order HTLVC / Human T-Cell Lymphotropic Virus Types 1 and 2 (HTLV-1/-2) Antibody Screen with Confirmation, Spinal Fluid.

Necessary Information

Date of collection is required.

Specimen Required

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Centrifuge blood collection tube per collection tube manufacturer's instructions (eg, centrifuge within 2 hours of collection for BD Vacutainer tubes).

2. Aliquot serum into plastic vial.

Specimen Minimum Volume

0.6 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen (preferred) 28 days
  Refrigerated  7 days

Reference Values


Day(s) Performed

Monday, Tuesday, Thursday, Friday

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information


86689 (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HTLVI HTLV-I/-II Ab Screen, S 29901-6


Result ID Test Result Name Result LOINC Value
9539 HTLV-I/-II Ab Screen, S 29901-6

Report Available

1 to 4 days

Method Name

Enzyme Immunoassay (EIA)


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