Human T-lymphotropic virus type I antibody screening (serum/plasma)
This test checks for antibodies to the Human T-lymphotropic virus type I (HTLV-I), a virus that can cause serious health conditions like a rare blood disease (HTLV-I associated myelopathy/tropical spastic paraparesis) or certain cancers.
["This screening helps identify if you may have been exposed to HTLV-I, which can affect your immune system over time."]
Key facts at a glance
- LOINC
- 14223-2
- Short code
- HTLV I p53 Ab Ser Ql
- Synonyms
- HTLV I p53 Ab Ser Ql
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your doctor may recommend this test if you have symptoms like persistent fatigue, muscle or joint pain, nerve problems, or if you live in an area with higher HTLV-I prevalence. It’s also used in blood donation screening or for people with risk factors like unprotected sex, shared needles, or certain occupations.
What to Expect Before the Test
No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. The process takes about 5 minutes, and you may feel a brief pinch. If you’re nervous, let your healthcare provider know.
What the Test Results Mean
A positive result means your blood contains antibodies to HTLV-I, suggesting past or current exposure. A negative result means no detectable antibodies were found in this sample. Follow-up testing may be needed to confirm or investigate further.
What to Do If Your Results Are Abnormal
If your test is positive, your doctor will likely order additional tests to check for active infection. They may also recommend monitoring for long-term health effects. If you’re concerned, discuss your results with your healthcare provider.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
HTLV-I can lead to chronic illnesses like HTLV-I-associated myelopathy (a nerve disorder) or adult T-cell leukemia/lymphoma. Early detection through screening helps manage risks and allows for closer monitoring. While there’s no cure, treatments can help manage symptoms and slow disease progression.
Short name
HTLV-I Antibody Screen
Frequently asked questions
What does a positive result mean?
Can I get HTLV-I from a blood transfusion?
How often should I get this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy