Serum or plasma concentration of sepia (a pigment derived from certain mollusks, often measured in biochemical studies for pigment-related assays)
This test measures the concentration of a pigment called sepia in your blood, which may be used in specialized biochemical or research studies—such as evaluating pigment metabolism or detecting rare pigment-related conditions.
["This test is typically used for research or specialized clinical purposes and may not be standard for routine care."]
Key facts at a glance
- LOINC
- 49941-8
- Short code
- Sepiapterin CSF-sCnc
- Synonyms
- Sepiapterin CSF-sCnc
- Category
- coagulation
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- — – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 85610
- SNOMED
- 396252006
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
Sepia is a natural pigment found in some marine organisms, including certain squid and cuttlefish. In blood tests, it may be analyzed for its concentration, often in connection with pigment-related biochemical studies or rare metabolic disorders. This test helps researchers or clinicians assess how your body processes pigments or identifies unusual pigment accumulation.
Why It Might Be Ordered
Your healthcare provider may order this test if they suspect a condition related to abnormal pigment metabolism, such as certain hereditary disorders, metabolic syndrome involving pigment deposition, or specialized research studies investigating pigment-related biomarkers. It may also be part of a broader diagnostic workup for unexplained skin, eye, or organ pigmentation changes.
What to Expect Before the Test
No special preparation is typically required for this test. You may have a blood draw, similar to other routine blood tests, where a small amount of blood is taken from a vein in your arm. If you are using blood thinners or have a history of bleeding disorders, inform your healthcare provider beforehand.
What to Expect During the Test
The test involves a simple blood draw. You may feel a slight pinch or discomfort, but it usually takes a few minutes to complete. The blood sample is then processed to measure sepia concentration using advanced laboratory techniques, such as chromatography or immunoassay methods.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
Why might my doctor order this test?
What does a normal or abnormal result mean?
How often should I get this test?
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