Vitamin B1
VIT B1
Description
"Vitamin B1" test measures thiamine levels in your blood to evaluate energy metabolism, nerve health, and cardiovascular function. Deficiency may cause symptoms like fatigue, nerve pain, or cognitive decline. It’s often recommended for individuals with poor diet, alcohol dependence, or suspected malabsorption. A low result may indicate conditions like beriberi or Wernicke’s encephalopathy. Doctors use this test to guide supplementation and nutritional care. Regular thiamine testing supports nervous system function and helps maintain energy and mental clarity.
Category
Vitamins
Procedure
Invasive
Sample Type
Blood – Whole Blood
Units
Nanomoles Per Liter
Procedure Category
Blood Draw
Test Group
Vitamin Group, Complete Nutrient Deficiency Group
Test Group Description
Complete Nutrient Deficiency Group: This comprehensive group includes an expanded panel of tests covering a wide range of vitamins, minerals, and other essential nutrients. Vitamin Group: This collection of tests encompasses a range of key vitamins crucial for physiological functions, aiding in nutritional status evaluation and deficiency detection.
Optimal Range
For All Individuals:
Conventional Unit: 74–222 nmol/L
SI Unit: 74–222 nmol/L
Normal Range
For All Individuals:
Conventional Unit: 70–220 nmol/L
SI Unit: 70–220 nmol/L
Results That Differ From The Norm (Direct and Indirect Causes)
Increased levels may indicate:
Excessive vitamin B1 supplementation
Excessive thiamine-containing food intake
Intravenous thiamine administration
Renal dysfunction (Impaired kidney function)
Decreased levels may indicate:
- ...
Key Reasons For Testing
Nutritional Assessment: Evaluates dietary sufficiency of thiamine intake.
Deficiency Diagnosis: Identifies thiamine deficiency to prevent neurological and cardiovascular complications.
Treatment Monitoring: Evaluates the efficacy of interventions addressing thiamine deficiency.
Malabsorption Evaluation: Detects absorption issues related to gastrointestinal disorders or alcoholism.
- ...
Health Status Conditions It May Be Used To Assess
Currently, this test is not directly associated with any conditions listed on the Health Status page. However, it may be included as part of a broader set of tests linked to specific health conditions.
Some Prominent Medical Labs That May Offer This Test
Please note that this particular test has not been associated with any of the listed prominent medical labs. We recommend enquiring with your private physician or nearest hospital to determine where this specific test can be performed.
References
Important Note
Any medical procedure yielding results outside the norm may be directly or indirectly linked to the conditions outlined on this page. Various factors, including genetics, medication and supplement usage, recent illnesses, pregnancy, pre-test eating, smoking, and stress, can impact the test's outcome. Additionally, factors like false positives, false negatives, inaccurate analyses, and others can influence results.
Reference ranges, which help healthcare professionals interpret medical tests, may vary depending on age, gender, and other factors. They may also differ between laboratories due to variations in instruments and methods used. Optimal ranges are designed for preventive purposes, aiming to identify trends and potential risks early, while normal ranges reflect conventional laboratory values indicating no current disease or pathology. Your healthcare practitioner may have specific reasons for testing that deviate from the usual or may interpret results differently based on individual circumstances. Proper interpretation typically involves considering clinical findings and other diagnostic tests. Hence, it is crucial to provide your healthcare professionals with a comprehensive medical history, consult with them for result interpretation, and follow their guidance for potential re-testing or additional diagnostics.
Disclaimer
This content is provided solely for informative and educational purposes. It is not intended as a substitute for medical advice or treatment from a personal physician. Regarding the interpretation of their medical test results and/or specific health questions, it is recommended that all readers and viewers consult their physicians or other qualified health professionals. The publisher is not responsible for any adverse health effects that may result from reading or following the information in this educational content. Before beginning any nutrition, supplement, or lifestyle program, all viewers, especially those taking prescription or over-the-counter medications, should consult their physician or health care practitioner.
Please note that while prominent lab names are included in this content, we cannot guarantee that these labs offer all the tests mentioned. For confirmation, individuals should contact the labs directly or consult their medical practitioners. The information provided reflects general knowledge at the time of publication and may not include recent updates or emerging research. Readers should verify details with qualified professionals to ensure the most up-to-date and accurate guidance.
[1] Tallaksen CM, Sande A, Bøhmer T, et al. Kinetics of Thiamine and Thiamine Phosphates in Human Blood and Urine After 50 mg Intravenous Thiamine Hydrochloride. Eur J Clin Pharmacol. 1993;44(1):73-78.
[2] Lonsdale D. Thiamine Deficiency and Its Effects on the Nervous System: A Current Perspective. J Integr Med. 2014;12(3):151-156.
[3] Singleton CK, Martin PR. Molecular Mechanisms of Thiamine Utilization. Curr Mol Med. 2001;1(2):197-207.
[4] Whitfield KC, Bourassa MW, Adamolekun B, et al. Thiamine Deficiency Disorders: Diagnosis, Prevalence, and a Roadmap for Global Control Programs. Ann N Y Acad Sci. 2018;1430(1):3-43.
[5] McCandless DW. Thiamine Deficiency and Associated Clinical Disorders. Neurol Res. 2009;31(3):277-280.
[6] Bemeur C, Butterworth RF. Thiamine Deficiency in Wernicke Encephalopathy. Metab Brain Dis. 2005;20(4):343-352.
[7] Lynch PL, Young IS. Determination of Thiamine in Whole Blood by High-Performance Liquid Chromatography. J Chromatogr B Biomed Sci Appl. 2000;738(2):191-197.
[8] Martin PR, Singleton CK, Hiller-Sturmhöfel S. The Role of Thiamine Deficiency in Alcoholic Brain Disease. Alcohol Res Health. 2003;27(2):134-142.
[9] Victor M, Adams RD, Collins GH. The Wernicke-Korsakoff Syndrome and Related Neurologic Disorders Due to Alcoholism and Malnutrition. 2nd ed. Philadelphia, PA: FA Davis; 1989:85-112.
[10] Bettendorff L, Mastrogiacomo F, Kish SJ, et al. Thiamine, Thiamine Phosphates, and Their Metabolizing Enzymes in Human Brain. J Neurochem. 1996;66(6):2501-2507.
[11] World Health Organization. Thiamine Deficiency and Public Health. Geneva: WHO; 2021.
[12] Keating EM, Nair R. The Emerging Role of Thiamine in Neurology: Beyond Wernicke-Korsakoff Syndrome. Neurol Clin. 2020;38(2):465-479.
[13] Gibson RS, Heath AL. Population Studies of Thiamine Intake and Deficiency in Low-Income Countries. J Nutr. 2011;141(3):781-783.