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Vitamin B1 Whole Blood Test

The Vitamin B1 Whole Blood Test measures levels of vitamin B1 in the blood. 

Sample Report

Test Code: 121186

Also Known As: B1 Vitamin, Whole Blood; Thiamine, Whole Blood; Thiamin; Vitamin F; Aneurin; Thiamine diphosphate (TDP)

Methodology: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Preparation: Fasting for 10-12 hours required.

Test Results: 3-4 days. May take longer based on weather, holiday or lab delays.

Sample Report

Test Code: 5042

Also Known As: B1 Vitamin, Whole Blood; Thiamine, Whole Blood; Thiamin; Vitamin F; Aneurin; Thiamine diphosphate (TDP)

Methodology: Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

Preparation: Fasting for 10-12 hours required.

Test Results: 3-4 days. May take longer based on weather, holiday or lab delays.

Description

Thiamine, or vitamin B1, is involved in a number of functions in the body, including the nervous system (axonal conduction) and muscular functioning (electrolyte flow in these cells), carbohydrate metabolism, enzymatic processes, and production of hydrochloric acid needed for digestion.

Low levels of thiamine reflect malabsorption states, poor nutritional status, or inadequate oral intake, while high levels suggest excessive intake or absorption issues. Conditions that increase the risk of vitamin B1 deficiency include the following:

  • Alcoholism
  • Malnutrition
  • Malabsorption (eg, chronic diarrhea)
  • Dieting
  • Renal dialysis
  • Poor nutritional status on parenteral glucose (TPN)
  • Bariatric weight-loss surgery
  • Long-term diuretic therapy due to urinary losses
  • Prolonged hyperemesis gravidarum or anorexia in women
Good sources of Vitamin B1 include cereals, whole grains, potatoes, pork, seafood, nuts, and legumes. 

symptoms of B Vitamin deficiency include:

  • irritability
  • skin rash
  • fatigue
  • insomnia
  • numbness or tingling in the hands and feet
  • sores on the lips or in the mouth. 

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