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Ganglioside GM1 (Mass Concentration) in Serum

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

This test measures the amount of GM1 ganglioside, a complex sugar molecule found in certain cells, including nerve cells. It may be used to evaluate conditions affecting nerve function or detect certain genetic disorders.

Quick summary

["GM1 ganglioside levels can help diagnose or monitor conditions impacting nerve cells."]

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

Key facts at a glance

LOINC
109398-8
Short code
GT1a Gangl IgG Msmt Ser
Synonyms
GT1a Gangl 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

Why This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms like nerve damage, muscle weakness, or developmental delays. It could also be part of a broader evaluation for genetic disorders or metabolic conditions affecting gangliosides.

What to Expect Before the Test

No special preparation is typically needed. You’ll provide a blood sample drawn from a vein in your arm. The sample will be sent to a lab for analysis.

What the Results Mean

Results are interpreted based on your clinical symptoms and overall health. Elevated or abnormal levels might suggest conditions like GM1 storage disease or other nerve-related disorders. Your doctor will discuss findings with you.

Common Conditions Monitored

This test is primarily used in diagnosing rare genetic disorders, such as GM1 gangliosidosis, which involves the buildup of GM1 in nerve cells. It may also be part of research or specialized evaluations for metabolic or neurodegenerative conditions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: GM1 Ganglioside Levels

Short name

GM1 Ganglioside

Frequently asked questions

What causes abnormal GM1 levels in the blood?
Abnormal GM1 levels are most commonly linked to inherited metabolic disorders, such as GM1 gangliosidosis. Other conditions like nerve damage, certain cancers, or exposure to toxins may also affect ganglioside levels, but this test is less commonly used for these broader scenarios.
How are GM1 levels typically used in diagnosis?
GM1 levels are primarily used in specialized settings to confirm or diagnose rare genetic disorders. Doctors may use this test alongside other genetic testing, imaging, or clinical symptoms to reach a diagnosis.
Can lifestyle or diet affect GM1 test results?
Diet or lifestyle factors generally do not significantly impact GM1 levels in the blood. However, if you’re undergoing treatment for a condition, your doctor may advise avoiding certain medications or supplements that could interfere with test results.
  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