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Vitamin B12 Deficiency Cascade (Pernicious Anemia Cascade)*
Diagnosis of Vitamin B12 Deficiency. Although often used as the first-line screening test for B12 deficiency, serum B12 measurement used in isolation has a generally poor sensitivity and specificity for detection of B12 deficiency.1,6,19,32 The National Health and Nutrition Exami...
View Lab TestVitamin B 1 (Thiamine), Whole Blood
For the assessment of thiamine deficiency The biologically active form of the vitamin, thiamine pyrophosphate (TPP), is best measured in whole blood and is not found in measurable concentration in plasma. Plasma thiamine concentration reflects recent intake rather than body store...
View Lab TestVitamin B 2 (Riboflavin), Whole Blood
Riboflavin deficiency is known as pellagra, usually found in those who do not consume a diet rich in organ meats, leafy greens, and whole grains. It is seen in elderly, alcoholics, those with chronic liver disease, and those on total parenteral nutrition. Deficiency may be associ...
View Lab TestVitamin B 3 (Niacin and Metabolite)
Measurement of vitamin B3 level as nicotinic acid and nicotinamide.This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.Niacin (nicotinic acid) is a water-soluble vitamin that is...
View Lab TestVitamin B 5 (Pantothenic Acid)
Measurement of vitamin B5 levelResults of this test are for investigational purposes only. The performance characteristics of this assay have been determined by LabCorp. The result should not be used as a diagnostic procedure without confirmation of the diagnosis by another medic...
View Lab TestVitamin B 6 (Pyridoxine), Plasma
Detect vitamin B6 deficiency.This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.Vitamin B6 occurs as an alcohol (pyridoxine), an aldehyde (pyridoxal), and an amine (p...
View Lab TestVitamin B 7 (Biotin)
Measurement of vitamin B7 level.This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.Biotin is a colorless, water-soluble B-complex vitamin that is also referred to as vitamin B7...
View Lab TestVitamin C
Evaluation of vitamin C deficiency Serum levels of vitamin C are an adequate measurement of clinical status. Vitamin C is a cofactor for protocollagen hydroxylase; it promotes the conversion of tropocollagen to collagen.[1] Low values occur in scurvy, malabsorption, alcoholism, p...
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