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Hugh's MD1 Metabolism > Vitamins > Flashcards

Vitamins Flashcards

1
Q

How does a deficiency of B3 present?

A

Dermatitis, diarrhoea, dementia and death

The condition is called Pellagra

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1
Q

Which deficiency presents with glossitis?

A

Folate

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2
Q

What is derived from beta-carotene?

A

Vitamin A

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2
Q

What does Vitamin E do?

A

Anti-oxidant - inserts into membranes and accepts free radicals

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3
Q

What are symptoms of Wernicke Korsakoff syndrome?

A

Nystagmus

Wide step

Confusion

Hypothermia

Amnesia

Confabulation

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3
Q

Scurvy is caused by a deficency of which vitamin?

A

C

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3
Q

How does vitamin D deficiency present?

A

Ricketts - kids

Osteomalacia - adults

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4
Q

How can you get a deficiency in biotin?

A

Eating too many raw eggs

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4
Q

Why isn’t vitamin K a true vitamin?

A

Gut flora make it for you

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5
Q

What is folate required for?

A

DNA replication

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5
Q

What is required for B12 absorption?

A

Intrinsic factor

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7
Q

What the other name for B2?

A

Riboflavin

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9
Q

What does riboflavin do?

A

Electron carrier (FMN, FAD)

Carbohydrate, protein and fat metabolism

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10
Q

What are two conditions with thiamin (B1) deficiency?

A

Beriberi

Wernicke-Korsakoff syndrome (alcoholics)

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11
Q

What are symptoms of Beriberi?

A

Weakness

Paralysis

Anaemia

Wasting

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12
Q

Which organ is vitamin A associated with?

A

The eye

13
Q

What is vitamin K involved in?

A

Blood clotting

14
Q

How does B12 deficiency present?

A

Pernicious anaemia

16
Q

What are the water soluble vitamins?

A

B1, B2, B3 (Thiamin), B6

Pantothenic acid, Biotin, Folate, Cobalamin (vitamin B12) and Vitamin C (ascorbic acid)

18
Q

What are the fat soluble vitamins?

A

A,D,E,K

19
Q

What is retinol?

A

A form of vitamin A

21
Q

How are fat soluble vitamins absorbed?

A

Typically with fats

22
Q

Has does a deficiency of biotin present?

A

Skins of hands is shiny, dry and scaly

23
Q

A deficiency of which vitamin can cause spina bifida and macrocytic anaemia?

A

Folate

24
Q

What is Thiamin (B1) required for?

A

Coenzyme in decarboxylations

Carbohydrate, protein and fat metabolism

Nerve function

26
Q

What is niacin otherwise known as?

A

B3

27
Q

Vitamin C is involved in what?

A

It’s a co-factor in collagen synthesis

28
Q

How does vitamin D control Ca levels?

A

Accelerates its absorption in the intestines

Promotes reabsorption in the kidney (with parathyroid hormone)

Stimulate osteoclast activitiy if Ca too low (with parathyroid hormone)

29
Q

What cohort of the population commonly get pernicious anaemia?

A

Vegans

30
Q

Which vitamins is also called pyridoxine?

A

B6

Hugh's MD1 Metabolism (15 decks)

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