Antibody to Achilles Tendon Autoantibodies (Serum)
This test measures antibodies that may be linked to autoimmune conditions affecting the Achilles tendon, a large tendon in your ankle that connects your calf muscles to your heel bone.
["This test helps evaluate potential autoimmune-related tendon issues."]
Key facts at a glance
- LOINC
- 11560-0
- Short code
- AChR Bind Ab Ser-aCnc
- Synonyms
- AChR Bind Ab Ser-aCnc
- Category
- coagulation
- 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 Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like unexplained tendon pain, swelling, or stiffness in the Achilles area, especially if other causes (like overuse or injury) have been ruled out. It could also be part of a broader evaluation for autoimmune diseases affecting connective tissues.
What to Expect Before the Test
No special preparation is typically needed. You may provide a blood sample during a routine clinic visit. If you’re concerned about needles, let your healthcare provider know so they can offer comfort measures.
What the Test Results Mean
Positive results indicate the presence of specific antibodies, which may suggest an autoimmune response targeting the Achilles tendon. However, this alone doesn’t confirm a diagnosis—results are usually interpreted alongside your symptoms and medical history.
Common Causes or Conditions
This test is often used in research or specialized settings to investigate rare autoimmune conditions affecting tendons. It’s not routinely used for general screening but may be part of a targeted diagnostic workup.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
While antibodies to the Achilles tendon are uncommonly measured in routine care, elevated levels could signal an autoimmune process. Early identification may help guide treatment options, such as anti-inflammatory medications or lifestyle adjustments to reduce tendon stress.
Short name
Achilles Tendon Antibody Test
Frequently asked questions
What does a positive result mean?
Can this test be done at home?
How long does it take to get results?
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