Carnitine Blood Test
Compare labs
| Feature |
Labcorp
|
Quest Diagnostics
|
|---|---|---|
| Price | Coming soon | $30.99 |
| Results in | — | ~5 business days |
| Sample type | — | Blood Serum |
| Require fasting | — | No |
About the test
Serum carnitine analysis is useful in the diagnosis and monitoring of patients with carnitine deficiency (either primary or secondary). Primary carnitine deficiency is an autosomal recessively inherited genetic condition that affects carnitine uptake by cells and tissues through a defect in the plasma membrane carnitine transporter. Secondary carnitine deficiency can be seen in some disease states or in patients on carnitine-poor diets, but is also seen in a number of metabolic disorders. In these disorders, carnitine complexes with the accumulated substrate of the blocked metabolic step, and the resulting acylcarnitine ester is excreted in the urine, leading to a depletion of carnitine in the patient.
Included biomarkers & Reference ranges
| Biomarker | Reference range |
|---|---|
| Carnitine, Esters Shows the amount of carnitine bound to fatty acids in your blood, calculated from total and free carnitine, used to assess carnitine and fat metabolism. | — |
| Carnitine, Free Measures free, unbound carnitine in your blood, which helps move fats into cells for energy, to look for carnitine deficiency. | — |
| Carnitine, Total Measures total carnitine in your blood, both free and bound forms, to check for carnitine deficiency and look at fat metabolism. | — |
| Esterified/Free Ratio A ratio calculated from esterified (acyl) carnitine and free carnitine in serum, used to help assess carnitine status and how fats are being processed. | — |
Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.
How it works
- 1. Order online No referral or insurance
- 2. Get a requisition By email in 24–72 hours
- 3. Visit a draw center Bring a matching photo ID
- 4. Get results Securely by email
- These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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