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Ganglioside GM2 (Quantitative) in Serum

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

This test measures the amount of GM2 ganglioside, a complex sugar-lipid molecule found in certain cells, in your blood serum. It may be used to assess metabolic or storage disorders affecting these molecules.

Quick summary

["GM2 ganglioside levels can help diagnose or monitor conditions linked to abnormal lipid metabolism."]

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

Key facts at a glance

LOINC
109381-4
Short code
GM2 Gangl IgM Msmt Ser
Synonyms
GM2 Gangl IgM 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

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms or a family history suggestive of a metabolic disorder, such as GM1 gangliosidosis or certain lysosomal storage diseases. It could also be part of a broader evaluation for inherited conditions affecting ganglioside metabolism.

What to Expect Before the Test

No special preparation is typically needed, but you may be asked to fast for 8–12 hours before the draw if instructed by your provider. Bring any medications or supplements you’re taking, as they could affect results.

How the Test Is Performed

A blood sample will be drawn from a vein in your arm by a healthcare professional. The serum portion of the blood is then analyzed using a specialized laboratory technique to measure GM2 ganglioside concentration.

What the Results Mean

Results are reported as a quantitative measurement of GM2 ganglioside mass concentration in serum. Elevated levels may indicate certain metabolic disorders, while normal or low levels help rule out these conditions. Your provider will interpret results in the context of your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: GM2 Ganglioside Levels and Health

Short name

GM2 Ganglioside Serum Level

Frequently asked questions

What does elevated GM2 ganglioside mean?
Elevated levels of GM2 ganglioside in serum may suggest underlying lysosomal storage disorders, such as GM1 gangliosidosis or related metabolic conditions. These disorders can affect multiple organ systems, including the nervous system, and may cause progressive symptoms. Consult your doctor to discuss further testing or treatment options.
What if my results are within normal range?
If your GM2 ganglioside levels are within the expected range, it generally means there is no immediate evidence of a metabolic disorder linked to abnormal ganglioside metabolism. However, your healthcare provider may continue monitoring or recommend additional tests if symptoms persist or if there is a family history of related conditions.
Can diet or lifestyle affect GM2 ganglioside test results?
Diet or lifestyle factors typically do not directly influence GM2 ganglioside levels in serum. However, certain medications or supplements (e.g., those affecting lipid metabolism) may indirectly impact results. Always inform your provider about all medications or supplements you are taking before the test.
  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