Vitamin B1 Thiamine Test
Short Name: Vitamin B1 Thiamine
Also known as: Thiamine Test, Vitamin B1 Test, Thiamine Blood Test
Vitamin B1 Thiamine Test test available at DNA Labs India for ₹7,605. Uses LC-MS/MS on Plasma / Serum samples. Results in Samples are processed in a batch. The test is performed on samples received by the 7th of the month; reports are issued after 2-3 weeks.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Pasupathy Arumugam
Consultant Pathologist · Reg: 21521
Last reviewed: September 7, 2026
Overview
This test is used to detect vitamin B1 (thiamine) deficiency, especially in individuals presenting with symptoms of fatigue, neuropathy, or cognitive impairment, and in those at high risk due to chronic alcoholism, malabsorption, or prolonged inadequate diet.
- Test Code
- 3749
- Price
- ₹7,605
- Sample Type
- Plasma / Serum
- Result Time
- Samples are processed in a batch. The test is performed on samples received by the 7th of the month; reports are issued after 2-3 weeks.
- Fasting Required
- Yes (8 hours)
- Method
- LC-MS/MS
Sample Collection
Fasting for at least 8 hours is required; overnight fasting is strongly recommended. Inform your physician about any medications you are taking, as certain drugs may influence thiamine levels.
Method: Venipuncture
Laboratory Analysis
A blood sample will be obtained from a vein using a sterile needle. The process usually takes less than 5 minutes.
Report Delivery
No special precautions are required. You may resume normal activities and dietary intake unless otherwise instructed.
Timeline: Samples are processed in a batch. The test is performed on samples received by the 7th of the month; reports are issued after 2-3 weeks.
Patient Instructions
About This Test
Who Should Get This Test
This test is used to detect vitamin B1 (thiamine) deficiency, especially in individuals presenting with symptoms of fatigue, neuropathy, or cognitive impairment, and in those at high risk due to chronic alcoholism, malabsorption, or prolonged inadequate diet.
How to Prepare
- Overnight fasting is mandatory.
- Wrap sample in aluminium foil to protect from light.
- Separate plasma/serum within 4 hours of collection and freeze.
- Ship frozen. DO NOT THAW.
- Duly filled Test Send Out Consent Form (Form 35) is mandatory.
Doctor's Notes
Reviewed by Dr Pasupathy Arumugam — MBBS, MD (Pathology) · Reg. No. 21521
"Early detection of Vitamin B1 deficiency is vital, especially for individuals with chronic alcoholism, persistent vomiting, or malabsorptive conditions. The symptoms are often subtle and can be easily overlooked, leading to irreversible neurological damage if untreated."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Unfasted patient sample.
- Sample exposed to light during transport.
- Plasma/serum not separated within 4 hours of collection.
- Sample received thawed.
- Missing Test Send Out Consent Form (Form 35).
- Clotted sample.
Understanding Your Results
Low thiamine level
Indicates vitamin B1 deficiency and may be associated with symptoms like fatigue, neuropathy, confusion, and beriberi if severe.
Normal thiamine level
Generally excludes a significant deficiency state.
Elevated thiamine level
Rarely of clinical concern; excess water-soluble vitamins are usually excreted in urine.
If you have symptoms suggestive of vitamin B1 deficiency, or if you are at high risk (e.g., chronic alcoholism, persistent vomiting, malabsorption), consult your physician promptly for interpretation of this test and appropriate management.
Limitations
- ⚠The test reflects circulating thiamine at the time of collection and may not fully indicate tissue or total body stores.
- ⚠Functional assays such as erythrocyte transketolase activity may be used in conjunction for a more comprehensive assessment.
- ⚠This test is not intended for the evaluation of other vitamin deficiencies.
Risks & Considerations
- ●Minimal risk of bleeding, bruising, or infection at the puncture site.
Interfering Factors
- ●Failure to protect the sample from light may cause photodegradation of thiamine, leading to falsely low results.
- ●Delayed separation of plasma/serum (beyond 4 hours) can alter thiamine stability.
- ●Sample thawing during transport may reduce measured thiamine levels.
- ●Haemolyzed or lipemic samples may interfere with the LC-MS/MS assay.
Frequently Asked Questions
What is the Vitamin B1 Thiamine Test?
Why has my doctor recommended this test?
What are the common symptoms of Vitamin B1 deficiency?
What is the cost of the Vitamin B1 Thiamine Test at DNA Labs India?
Is home sample collection available for this test?
What is the preparation required for the test?
What type of sample is collected?
What is the normal range for Vitamin B1?
How long will it take to receive my report?
Are there any risks associated with the blood test?
What does a low thiamine level indicate?
Can I take any medications before the test?
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