Carnitine Serum Test
Also known as: Carnitine Test, Serum Carnitine Test
Carnitine Serum Test test available at DNA Labs India for ₹5,500. Uses LC-MS/MS (Liquid Chromatography-Mass Spectrometry) on Serum samples. Results in Reports are typically available within 2 days after sample collection.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Ramarao Paidisetty
Consultant Biochemist · Reg: 21504
Last reviewed: September 7, 2026
Overview
The purpose of the Carnitine Serum Test is to diagnose carnitine deficiency by measuring serum levels of carnitine and acylcarnitine. This helps identify metabolic disorders, guide treatment decisions, and monitor response to therapy in patients with symptoms like muscle weakness or cardiac issues.
- Test Code
- 274
- Price
- ₹5,500
- Sample Type
- Serum
- Result Time
- Reports are typically available within 2 days after sample collection.
- Fasting Required
- No
- Method
- LC-MS/MS (Liquid Chromatography-Mass Spectrometry)
Sample Collection
No special preparation such as fasting is required. Inform your doctor about any medications or supplements you are taking.
Method: Venipuncture
Laboratory Analysis
A blood sample will be drawn from a vein in your arm by a trained phlebotomist. The process takes a few minutes and may cause minor discomfort.
Report Delivery
Apply pressure to the puncture site with a cotton ball to prevent bleeding. Avoid heavy lifting with the arm for a few hours.
Timeline: Reports are typically available within 2 days after sample collection.
Patient Instructions
About This Test
Who Should Get This Test
The purpose of the Carnitine Serum Test is to diagnose carnitine deficiency by measuring serum levels of carnitine and acylcarnitine. This helps identify metabolic disorders, guide treatment decisions, and monitor response to therapy in patients with symptoms like muscle weakness or cardiac issues.
How to Prepare
- Ensure the sample is collected in an SST tube.
- Separate serum within 1 hour of collection.
- Ship refrigerated or frozen to maintain stability.
- Label the sample correctly with patient details.
Doctor's Notes
Reviewed by Dr Ramarao Paidisetty — MBBS, MD (Biochemistry) · Reg. No. 21504
"Carnitine levels are crucial for fatty acid metabolism; early detection of deficiency can prevent severe complications in heart and muscles."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Hemolyzed or lipemic samples
- Incorrect sample type or container
- Insufficient sample volume
- Improper storage or delayed transport
Understanding Your Results
Suggests carnitine deficiency; consider primary genetic disorders or secondary causes like malnutrition. Consult a doctor for treatment options.
Level: Low
Levels within reference range; indicates adequate carnitine for metabolic function. No immediate action needed if asymptomatic.
Level: Normal
Elevated levels may occur in certain metabolic conditions or with supplementation. Further investigation may be warranted.
Level: High
If your test results show abnormal levels of carnitine or if you experience persistent symptoms like muscle weakness, fatigue, or cardiac issues, consult a healthcare professional immediately for diagnosis and management.
Limitations
- ⚠Results may vary based on age, sex, and laboratory methods
- ⚠Does not differentiate between primary and secondary causes of deficiency
- ⚠Further genetic testing may be needed for confirmation
Risks & Considerations
- ●Minor bruising or soreness at the needle site
- ●Rare risk of infection or fainting
- ●No significant health risks associated with the test itself
Interfering Factors
- ●Medications such as valproic acid or antibiotics
- ●Dietary supplements containing carnitine
- ●Hemolyzed blood samples
- ●Recent blood transfusions
Compare With Similar Tests
| Test | Carnitine Serum Test | Amino Acid Test | Organic Acid Test | Fatty Acid Oxidation Test | Genetic Testing for Metabolic Disorders |
|---|---|---|---|---|---|
| Comparison | Carnitine Serum Test | Measures amino acids in blood/urine; complementary for metabolic disorders but different focus. | Detects organic acids in urine; useful for broader metabolic screening but not specific to carnitine. | Assesses fatty acid metabolism; carnitine test is a subset for transport issues. | Identifies genetic mutations; carnitine test is functional and quicker for deficiency diagnosis. |
Frequently Asked Questions
What is the cost of the Carnitine Serum Test in India?
What are the symptoms of carnitine deficiency?
How is the Carnitine Serum Test performed?
Do I need to fast before the Carnitine Serum Test?
What does a low carnitine level indicate?
How long does it take to get the test results?
Is home sample collection available for this test?
What is the sample type required for the test?
Can this test diagnose inborn errors of metabolism?
What are the reference ranges for carnitine levels?
Are there any risks associated with the test?
What should I do if my results are abnormal?
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