Platform
Company
Immunology & Autoimmune
Review status
Currently under review
Pending specialist review and validation.
C10:1 Decenoyl, also called decenoylcarnitine, is one of the acylcarnitines measured in blood to assess how your body breaks down fats for energy. Acylcarnitines form when fatty acids are transported into mitochondria, the energy centers of cells, for processing.
This marker is usually reported as part of a comprehensive acylcarnitine profile performed by tandem mass spectrometry. It helps clinicians look for patterns that can suggest inherited conditions that affect fat metabolism, as well as metabolic stress during illness or fasting.
Healthcare providers use C10:1 Decenoyl to help screen for and evaluate disorders of fatty acid oxidation, a group of inherited conditions in which the body has trouble turning certain fats into energy. This test is common in newborn screening programs and is also used when children or adults have symptoms like low blood sugar during illness, unexplained lethargy, muscle pain, or liver problems.
A change in this marker can also occur secondary to nutrition, medications, or intercurrent illness. Interpreting C10:1 Decenoyl alongside other acylcarnitines and clinical information can guide next steps, such as repeat testing when well, urine organic acids, plasma free carnitine, and, when appropriate, genetic testing. Early recognition of a fatty acid oxidation disorder can help prevent complications and guide diet and sick-day plans.
Your result is interpreted in the context of age, health status, and the pattern of other acylcarnitines. A higher-than-expected value does not by itself diagnose a condition. Your clinician may compare it with other markers, ask about recent illness or fasting, and consider confirmatory tests. If you or your child were sick at the time of collection, a repeat sample when well is sometimes recommended.
If the value is within the expected range, it generally supports normal fat metabolism, though clinical context still matters. Do not change diet or supplements unless your clinician advises it. If results suggest a possible metabolic issue, your care team will discuss practical steps such as nutrition strategies, emergency illness plans, and whether family members should be tested.
Reference intervals vary by laboratory, analyzer, methodology, population, and units. The ranges shown here are for education only. Always interpret your results against the reference interval printed on your own lab report.
Being ill, fasting, or having poor intake can increase acylcarnitines as the body shifts to fat use for energy. Samples taken during fever, vomiting, or after prolonged fasting may look different from well-state samples.
Acylcarnitines can be measured from plasma, serum, or dried blood spots. Hemolysis, delayed processing, or improper storage may alter results. Following collection and transport instructions helps ensure accuracy.
Valproate, pivalate-containing antibiotics, medium-chain triglyceride products, ketogenic diets, and carnitine supplements can change acylcarnitine patterns. Share all medicines and supplements with your clinician.
Newborns undergo metabolic adaptation after birth, and prematurity or low birth weight can influence results. Maternal nutrition and carnitine status may also affect early infant measurements.
Liver disease can alter fatty acid metabolism, and reduced kidney function can affect carnitine and acylcarnitine clearance, potentially shifting measured levels.
Feeding status, timing relative to meals, and special diets can influence acylcarnitines. When feasible, follow your lab’s preparation instructions and note recent diet for accurate interpretation.
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