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Mitochondrial Antibody Profile (Serum) – Immunoassay Panel

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

This test measures antibodies against mitochondrial proteins, which may help diagnose certain autoimmune conditions affecting the liver, kidneys, or other organs.

Quick summary

["This test helps identify autoimmune disorders linked to mitochondrial antibodies, often used in conditions like autoimmune hepatitis or mixed connective tissue disease."]

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

Key facts at a glance

LOINC
108975-4
Short code
Mitochondria M2 IgG Msmt Ser
Synonyms
Mitochondria M2 IgG Msmt Ser
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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

What This Test Measures

The test detects specific antibodies (immunoglobulins) that target mitochondrial components in your blood. These antibodies can be part of an autoimmune response, where your immune system mistakenly attacks healthy cells. The panel typically includes tests for common mitochondrial antigens, such as those associated with autoimmune hepatitis or other systemic autoimmune diseases.

Why It’s Ordered

Your healthcare provider may order this test if you have symptoms like fatigue, liver issues (e.g., jaundice, abdominal pain), kidney problems, or other signs of autoimmune disease. It may also be used to monitor treatment progress or confirm a diagnosis in suspected cases.

Sample Collection and Preparation

A blood sample is drawn from a vein in your arm. The serum portion (liquid part after clotting) is separated and sent to the lab for testing. This test is typically done on fresh or stored serum samples, often analyzed using immunoassay methods to detect antibody presence.

Common Conditions Linked to Positive Results

Positive results may suggest autoimmune conditions like autoimmune hepatitis, systemic lupus erythematosus (SLE), or other mitochondrial-related autoimmune disorders. However, false positives can occur, so results are often interpreted alongside clinical findings and other tests.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Mitochondrial antibodies can indicate an autoimmune attack on organs like the liver, kidneys, or heart. While not all positive results lead to a definitive diagnosis, they can support a clinical suspicion of autoimmune disease. This test is particularly useful in diagnosing conditions where mitochondrial dysfunction plays a role, such as autoimmune hepatitis or certain forms of mixed connective tissue disease.

Short name

Mitochondrial Antibodies (Serum)

Frequently asked questions

What does a positive result mean?
A positive result means your blood contains antibodies against mitochondrial proteins, which may signal an autoimmune response. This doesn’t always mean you have a specific disease, but it can help guide further testing or treatment decisions. Your doctor will review the results with your symptoms and other test findings.
How long does it take to get results?
Results are usually available within 1 to 3 business days, depending on your lab’s processing time. Some labs may provide preliminary results sooner, but final interpretations are reviewed by a healthcare provider.
Can lifestyle changes affect this test?
Lifestyle factors like diet, stress, or infections may influence autoimmune activity, but they don’t directly affect mitochondrial antibody levels. If you suspect your test results are affected by recent illness or changes, discuss this with your doctor before or after testing.
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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