Lab test

HTLV Type 1&2 Antibody Test: Human T-Cell Lymphotropic Virus

An HTLV antibody test checks the blood for antibodies against human T-cell lymphotropic virus types I and II.

Typical price

From $240

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

An HTLV antibody test checks the blood for antibodies against human T-cell lymphotropic virus types I and II. It detects and differentiates between antibodies to the two virus types. The test is used to assess whether a person may have been exposed to HTLV-I or HTLV-II. People may order it after a possible exposure or when a healthcare provider recommends screening based on risk factors. Results are interpreted by a clinician, since a positive antibody result prompts additional evaluation.

• HTLV-I antibody Antibodies against human T-cell lymphotropic virus type I.
• HTLV-II antibody Antibodies against human T-cell lymphotropic virus type II.

• People with a possible exposure to HTLV-I or HTLV-II
• Individuals whose healthcare provider recommends screening based on risk factors
• People with a sexual or household contact who has HTLV
• Those who received a blood transfusion in a setting where HTLV screening may not have occurred
• Individuals being evaluated for symptoms a healthcare provider associates with HTLV

• No fasting is required for this blood test
• A standard blood draw is used to collect the sample
• Tell the lab about any relevant exposures or medications
• Follow any specific instructions supplied with your test order

A negative HTLV antibody result generally means antibodies to HTLV-I and HTLV-II were not detected. A reactive result suggests possible exposure to one of the viruses and usually leads to additional testing to confirm and distinguish the type. Because antibodies take time to develop, an early test after exposure may be negative. A healthcare provider interprets the result with your history. Discuss your HTLV antibody results with a healthcare provider before making any decisions.

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