Vitamins: practice question

The best answer is C, Niacin. Niacin deficiency causes pellagra, classically described by dermatitis, diarrhea, and neuropsychiatric changes due to impaired NAD and NADP production.

Thiamine deficiency causes beriberi or Wernicke encephalopathy.

Riboflavin deficiency can cause cheilosis and glossitis.

Vitamin C deficiency causes scurvy.

It tests Vitamins in Biochemistry. The correct option holds because: Correct: niacin deficiency causes pellagra.

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

Build one table of enzyme deficiency, disease, inheritance and key finding, then revise it by spaced recall. Then use the flashcards and the other Biochemistry questions on this site to test what stuck.

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.