Ordering RecommendationRecommendations when to order or not order the test. May include related or preferred tests.
Confirm antibody test results for a positive screening test (HTLV types I and II).
MnemonicUnique test identifier.
HTLV WBLOT
MethodologyProcess(es) used to perform the test.
Qualitative Western Blot
PerformedDays of the week the test is performed.
Varies
ReportedExpected turnaround time for a result, beginning when ARUP has received the specimen.
1-8 days
New York DOH Approval StatusIndicates test has been approved by the New York State Department of Health.
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 IntervalNormal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Negative
Interpretive DataBackground information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
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).
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Compliance Category
Laboratory Developed Test (LDT)
NoteAdditional information related to the test.
Order this assay only when a specimen is repeatedly reactive for HTLV I or HTLV I/II antibodies.
Hotline History
N/A
CPT CodesThe American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* 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.
AliasesOther names that describe the test. Synonyms.
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
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