Sulfocysteine in Serum (Mass Concentration)
This test measures the amount of sulfocysteine, a sulfur-containing amino acid derivative, in your blood serum. It may be used to assess metabolic or detoxification processes or evaluate conditions affecting sulfur metabolism.
["Understanding your sulfocysteine levels can help identify metabolic or detoxification imbalances."]
Key facts at a glance
- LOINC
- 47781-0
- Short code
- Sulfocysteine Amn-sCnc
- Synonyms
- Sulfocysteine Amn-sCnc
- Category
- chemistry
- Sample
- fluid
- Container
- Sterile tube
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 2-5 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h
- Hemolysis max
- 300
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms or conditions linked to sulfur metabolism, such as liver disease, certain genetic disorders, or if you’re undergoing treatment for conditions requiring monitoring of sulfur-containing compounds. It could also be part of broader metabolic evaluations.
No special preparation is typically required, but you may be asked to fast or avoid certain medications for a set period before the draw. Bring your list of current medications to your appointment.
During the test, a healthcare professional will collect a blood sample from a vein in your arm. The sample will be sent to a lab for analysis. The process usually takes a few minutes.
Interpretation of your sulfocysteine levels depends on clinical context, including your medical history, symptoms, and other test results. Your provider will discuss findings with you after receiving the report.
Abnormal levels may suggest metabolic disorders, liver dysfunction, or other conditions affecting sulfur metabolism. Follow-up testing or additional evaluations may be recommended based on your results.
While sulfocysteine testing isn’t routinely used for general health screening, it may be part of specialized evaluations for conditions like homocystinuria, certain liver diseases, or detoxification studies.
This test is not typically used for routine check-ups or general wellness monitoring. It’s usually reserved for specific clinical scenarios where sulfur metabolism is suspected.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Sulfocysteine is a sulfur-containing amino acid that plays a role in detoxification pathways, particularly in the liver. Abnormal levels may indicate impaired metabolism, liver disease, or genetic disorders affecting sulfur metabolism. Your provider will use these results alongside other clinical findings to guide diagnosis or treatment planning.
Short name
Sulfocysteine Level
Frequently asked questions
How long does it take to get my results?
No special dietary restrictions apply, but always follow your provider’s specific instructions. If fasting is required, avoid food and liquids (except water) for the specified period before your appointment.
If your results are abnormal, your provider will explain what this means in the context of your health. They may recommend further testing, adjustments to your treatment plan, or additional evaluations to understand the cause.
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