Human T-Lymphotropic Virus (HTLV) Types I/II Antibodies by ELISA with Reflex to HTLV-I/II Confirmation by Western Blot
Ordering Recommendation
Qualitative Enzyme-Linked Immunosorbent Assay/Qualitative Western Blot
Mon, Wed, Fri*
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
Serum separator tube. Also acceptable: Lt. blue (sodium citrate), green (sodium or lithium heparin) or lavender (EDTA).  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)  
Storage/Transport Temperature
Unacceptable Conditions
Specimens containing particulate material.  
After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: Indefinitely (avoid repeated freeze/thaw cycles)  
Reference Interval
Effective May 20, 2013
Test Number Components Reference Interval
 Human T-​Lymphotropic Virus Types I/II Antibodies Negative
0020642Human T-​Lymphotropic Virus Types I/II Antibodies, Western Blot 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).  
If HTLV I/II screen is repeatedly reactive, then HTLV I/II Confirmation by Western Blot will be added. Additional charges apply.

*Performed and Reported times indicated are for screening of the anti-HTLV. Refer to Human T-Lymphotropic Virus Types I/II Antibodies, Western Blot (0020642) for additional information regarding Performed and Reported times.
CPT Code(s)
86790; if reflexed, add 86689
Component Test Code*Component Chart NameLOINC
0051165HTLV I/II Antibodies by ELISA21347-0
* 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.
  • HTLV 1, 2 western blot confirmation
  • HTLV 1/2
  • HTLV Types 1 & 2 confirmation