Ordering Recommendation

Confirm antibody test results for a positive screening test (HTLV types I and II).

Mnemonic
HTLV WBLOT
Methodology

Qualitative Western Blot

Performed

Varies

Reported

1-8 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Serum separator tube. Also acceptable: lavender (K2 EDTA), lavender (K3 EDTA), green (sodium heparin), green (lithium heparin), or light blue (sodium citrate).

Specimen Preparation

Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL).

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

Specimens containing particulate material.

Remarks
Stability

After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: Indefinitely (avoid repeated freeze/thaw cycles)

Reference Interval

Negative

Interpretive Data

This assay should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular and Tissue-Based Products (HCT/P).

Compliance Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Note

Order this assay only when a specimen is repeatedly reactive for HTLV I or HTLV I/II antibodies.

Hotline History
N/A
Components
Component Test Code* Component Chart Name LOINC
0020642 HTLV I/II Antibodies, Western Blot 16982-1
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • HTLV 1, 2 western blot confirmation
  • HTLV 1/2
  • HTLV I/II Antibodies Western Blot
  • HTLV Types 1 & 2 Abs western blot
  • HTLV Types 1 & 2 confirmation
  • HTLV western blot
Human T-Lymphotropic Virus Types I/II Antibodies, Western Blot