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Test Code HTLVL Human T-Cell Lymphotropic Virus Types I and II (HTLV-I/-II) Antibody Confirmation, Serum


Ordering Guidance


This confirmatory assay should be ordered only on serum specimens that are consistently reactive by an antihuman T-cell lymphotropic virus 1 and 2 (anti-HTLV-I/-II) screening immunoassay. For an evaluation that includes screening and confirmation, order HTLVI / Human T-Cell Lymphotropic Virus Types I and II Antibody Screen with Confirmation, Serum.

 

For testing spinal fluid specimens, order HTLLC / Human T-Cell Lymphotropic Virus Types 1 and 2 (HTLV-1/-2) Antibody Confirmation, Spinal Fluid.



Necessary Information


Date of collection is required.



Specimen Required


Collection Container/Tube: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions:

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

2. Aliquot serum into plastic vial.


Useful For

Confirmatory detection of human T-cell lymphotropic virus types I and II (HTLV-I and HTLV-II)-specific IgG antibodies in human serum specimens that are consistently reactive by initial screening tests

 

Differentiating between HTLV-I- and HTLV-II-specific IgG antibodies

Method Name

Line Immunoassay (LIA)

Reporting Name

HTLV-I/-II Ab Confirmation, S

Specimen Type

Serum SST

Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum SST Frozen (preferred)
  Refrigerated  7 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Reference Values

Negative

Day(s) Performed

Tuesday

Report Available

2 to 15 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

86689

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HTLVL HTLV-I/-II Ab Confirmation, S 55162-2

 

Result ID Test Result Name Result LOINC Value
83277 HTLV-I/-II Ab Confirmation, S 22362-8
23898 HTLV-I/-II Bands 61112-9
23899 HTLV-I/-II Discrimination 77744-1

Forms

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