Methionine Metabolite Profile (Serum/Plasma)
This test measures levels of certain compounds involved in methionine metabolism, which helps assess how well your body processes this essential amino acid.
["Understanding your methionine metabolism can help identify potential nutrient deficiencies or metabolic disorders."]
Key facts at a glance
- LOINC
- 72262-9
- Short code
- MetHgb CSF-sCnc
- Synonyms
- MetHgb CSF-sCnc
- Category
- hematology
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Ref low
- 12
- Ref high
- 17.5
- Critical range
- 7 N/A – 20 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 85018
- SNOMED
- 900000000000003004
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like fatigue, neurological issues, or if you have conditions such as homocystinuria, liver disease, or certain genetic disorders. It may also be used to monitor treatment for metabolic conditions.
No special preparation is typically needed, but you may be asked to fast for a few hours before the blood draw if your test includes fasting samples. Wear comfortable clothing and plan for the time it takes to get your blood drawn.
A healthcare professional will insert a small needle into your arm to draw blood. You may feel a slight pinch, but it usually doesn’t cause significant discomfort. The blood sample will be sent to a lab for analysis.
Your results will show the concentrations of specific metabolites in your blood. These levels can help determine if there are imbalances in your metabolism that may require further medical evaluation or treatment.
If your levels are outside expected ranges, your doctor may recommend additional tests or treatments to address potential deficiencies or metabolic issues.
Abnormal results might be linked to conditions such as homocystinuria, liver dysfunction, or certain genetic metabolic disorders. High levels may indicate impaired metabolism, while low levels could suggest nutritional deficiencies or other metabolic issues.
Abnormal results may prompt further investigation, including genetic testing or dietary adjustments, to manage underlying health concerns.
Reference range
Adult males: 13.5-17.5 g/dL; Females: 12.0-16.0 g/dLN/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Methionine-related metabolites
Frequently asked questions
What does a high level of these metabolites mean?
Low levels might indicate a deficiency in essential nutrients or enzymes involved in methionine metabolism. This could be caused by dietary factors, malabsorption issues, or certain genetic conditions. Your healthcare provider will evaluate your results in the context of your overall health.
The frequency of this test depends on your medical condition and treatment plan. Your healthcare provider will determine how often you need follow-up testing based on your individual needs and symptoms.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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