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Mitochondrial Antibody Profile (Screening)

Published: August 9, 2026Updated: August 16, 2026

This blood test checks for antibodies that may indicate an autoimmune condition targeting your mitochondria, which are essential energy-producing parts of your cells.

Quick summary

["This screening helps identify potential mitochondrial-related autoimmune disorders that could affect organs like the liver, kidneys, or muscles."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
5247-2
Short code
Mitochondria Ab Titr Ser IF
Synonyms
Mitochondria Ab Titr Ser IF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
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 doctor may recommend this test if you have symptoms like fatigue, muscle weakness, liver issues, or unexplained organ dysfunction. It’s also used in diagnosing conditions such as autoimmune hepatitis, chronic active hepatitis, or other mitochondrial disorders.

What to Expect Before the Test

No special preparation is needed. You’ll have a simple blood draw, usually from your arm. The test uses a small amount of your blood to detect specific antibodies.

What the Results Mean

A positive result means your blood contains antibodies against mitochondrial proteins, which may suggest an autoimmune response. However, further testing (like confirmation) may be needed to confirm a diagnosis.

Common Conditions Linked to Positive Results

Positive results can be associated with autoimmune liver diseases, such as autoimmune hepatitis, or other rare mitochondrial disorders. Your doctor will discuss next steps based on your symptoms and test results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Mitochondrial Antibody Screen

Frequently asked questions

What does a positive screening test mean for my health?
A positive screening result indicates the presence of mitochondrial antibodies, which may signal an autoimmune response. This doesn’t confirm a diagnosis yet, and further testing (like confirmation assays) is usually needed to explore potential conditions like autoimmune hepatitis or other mitochondrial disorders. Your doctor will work with you to interpret results and plan next steps.
Will I need follow-up tests if my screening is positive?
Yes, additional tests may be recommended to confirm the diagnosis and determine the specific type of mitochondrial disorder. These could include more detailed antibody profiling, liver function tests, or other specialized evaluations.
Can lifestyle changes help if I have mitochondrial-related symptoms?
While lifestyle adjustments like a balanced diet, regular exercise (as tolerated), and managing stress can support overall health, they may not directly treat mitochondrial disorders. Your doctor will help tailor a plan based on your diagnosis and symptoms.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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