24 Questions
What is the primary function of riboflavin in the body?
To act as a cofactor for many oxidative reactions in the cells
Which of the following is a common symptom of riboflavin deficiency?
Angular stomatitis or cheilosis
What is a rich source of niacin?
Meat, fish, and plants
What is the treatment for riboflavin deficiency?
Riboflavin 5 mg TDS daily
What is the primary cause of pellagra?
Niacin deficiency
What is a characteristic feature of pellagra?
Dermatitis, diarrhea, and dementia
What is the role of vitamin B6 in niacin synthesis?
It is necessary for the synthesis of niacin from tryptophan
What is the effect of sunlight on riboflavin?
It destroys riboflavin
What is the primary function of vitamin K in the body?
Producing clotting factors
What is the recommended treatment for vitamin K deficiency in newborns?
Vitamin K IM injection at the time of birth
What is the primary source of vitamin E?
Vegetables and seed oils
What is a potential consequence of vitamin K deficiency in adults?
Increased prothrombin time
What is the role of vitamin E in the body?
Acting as an antioxidant and radical scavenger
What is a potential benefit of vitamin E supplementation?
Prevention of cardiovascular disease
What is the consequence of high doses of vitamin K on oral anti-coagulants?
Impaired action
What is the recommended treatment for vitamin D deficiency?
Correction of the cause with increased vitamin D in diet and exposure to sunlight
What is a key function of Thiamine (vitamin B1)?
Cofactor in CHO metabolism
Which food is a source of Thiamine?
Cereals
What is a symptom of dry beriberi?
Polyneuropathy
Which condition is rapidly treated with Thiamine?
Wet beriberi
Where is beriberi now mainly found?
South Asia
How is the diagnosis of Thiamine deficiency confirmed?
By measuring transketolase activity in RBCs
Which plant or animal component is a source of Riboflavin (vitamin B2)?
All plants and animal cells
An elevated level of which acid indicates acute forms of Thiamine deficiency?
Lactic acid
This quiz covers the functions and sources of thiamine, also known as vitamin B1, and its deficiency symptoms. It's ideal for students of internal medicine and gastroenterology.
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