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Ganglioside GM1 (Serum)

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

This test measures the level of GM1 ganglioside, a complex sugar molecule found in your blood. It may be used to help diagnose or monitor certain neurological conditions.

Quick summary

["GM1 ganglioside levels can help identify rare genetic or metabolic disorders affecting nerve function."]

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

Key facts at a glance

LOINC
111355-4
Short code
GM1 Gangl IgG Msmt Ser
Synonyms
GM1 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 recommend this test if you have symptoms like muscle weakness, developmental delays, or neurological issues. It could also be part of a broader evaluation for conditions like GM1 gangliosidosis, a rare lysosomal storage disorder.

What to Expect Before the Test

No special preparation is typically needed. You may be asked to fast for 8–12 hours before the blood draw, but always follow your provider’s instructions. Bring any medications or supplements you’re taking.

How the Test Works

A small sample of your blood is collected and sent to a lab for analysis. The lab uses specialized techniques, such as high-performance liquid chromatography (HPLC), to measure GM1 ganglioside levels accurately.

What the Results Mean

Results may be compared to a reference range for healthy individuals, but exact values can vary by lab. Elevated levels might suggest a genetic disorder, while normal results don’t rule out all conditions. Your provider will discuss findings with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

GM1 Ganglioside

Frequently asked questions

What could cause abnormal results?
Elevated GM1 ganglioside levels are most strongly linked to GM1 gangliosidosis, a progressive disorder affecting nerve cells. Other rare conditions or metabolic disorders may also be associated with abnormal results, but further testing would be needed to confirm.
How often should I get this test?
If ordered for diagnostic purposes, this test may be done once or repeated based on your symptoms or treatment plan. Follow-up testing is usually scheduled by your healthcare provider.
Does this test interact with any medications?
No direct interactions are known, but certain medications (like blood thinners) may affect blood collection. Always inform your provider about all medications or supplements you’re taking.
  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