Vitamin Deficiency Flashcards

1
Q

What is vitamin A?

A

retinol, fat soluble vitamin

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2
Q

What is its main function of vit A?

A

necessary for normal eyesight, body tissues, growth and bone formation, resistance to infection, colour and night vision

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3
Q

When should high levels of vit A be avoided?

A

in pregnancy

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4
Q

Where is vitamin A acquired from?

A

liver, fish liver oils, whole or fortified milk, eggs, carrots and dark-green leafy vegetables, peaches, apricots

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5
Q

What are signs of deficiency of vitamin A?

A

poor night vision or night blindness, loss of appetite(LOA), increased susceptibility to infection and changes in the skin and teeth. Dryness of conjunctiva and cornea

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6
Q

What is vitamin B1?

A

thiamine

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7
Q

What is the function of vitamin B1?

A

vital for normal functioning of all body cells, especially nerves
helps body break down carbs, protein and fat for energy

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8
Q

What is the important safety advise given by the MHRA/CSM for vitamin B1?

A

potentially serious allergic adverse reactions when given IV

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9
Q

Where is vit B1 acquired?

A

pulses, brewers yeast, liver/pork, dried beans and peas, collard greens, oranges, wheat germ, breads and cereals whole grain, peanuts

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10
Q

What are signs of deficiency of vit B1?

A

fatigue, LOA, weight loss, GI upsets, N/weakness, mental confusion, muscular weakness, paralysis of extremities, heat problems, loss of reflexes

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11
Q

what is a severe deficiency of vit B1? How is treated?

A

Wernickes encephalopathy - especially seen in chronic alcoholism
INITIALLY with PABRINEX (contains Vitamin B1,2,3,6 AND Vitamin C) followed by oral administration of thiamine in the long run.

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12
Q

What has been associated with parenteral administration of thiamine?

A

serious anaphylaxis

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13
Q

What is vitamin B2

A

riboflavin

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14
Q

what is vit B2 necessary for?

A

normal release of energy from carb, protein and fat in food. growth development of normal hormones

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15
Q

what sources is vit b2 attained from?

A

dairy products, meat, fish, grains, cereals, broccoli, asparagus, spinach

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16
Q

what are signs of deficiency of vit b2?

A

soreness of mouth, lips and tongue, burning and itching of the eyes

17
Q

What is vitamin B3 and what is it essential for?

A

niacin
release of energy from carbs, aids breakdown of protein and fats/synthesis of fat and hormones and formation of red blood cells

18
Q

Where is vit b3 attained from?

A

meat, fish, wheat flour, eggs and milk

19
Q

what are signs of deficiency of vit b3? What is a severe deficiency associated with vit b3?

A

weakness, LOA, indigestion, skin inflammation, lethargy
severe deficiency results in disease pellagra - causes scaly skin, swollen tongue, tremors and damage to the central nervous system

20
Q

What is vit B6? What is its main function? What source is it found in?

A

pyridoxine
same as the other vitmains B’s plus processing amino acids which aids formation and maintenance of the nervous system

found in chicken, fish, kidney, liver, eggs

21
Q

What are signs of deficiency of vit b6?

A

depression, vomiting, increased susceptibility to disease and infection, skin and nerve inflammation, anaemia, Nausea and lethargy

22
Q

What is a risk factor when taking vit b6?

A

risk of neuropathy with high doses
Prolonged use of 10mg/day is considered safe but long-term use of pyridoxine in a dose of >200mg/day has been associated with neuropathy SO AVOID OVERDOSE.

23
Q

What is vit B7? What are its functions etc?

A

Biotin - same as all other vitamin B’s

24
Q

What is the main function of vit b12?
which group of people lack this vitamin?
Which drug causes vit b12 deficiency?

A

same as others
Vegans
metformin

25
Q

what are signs of deficiency of vit b12?

A

pernicious anaemia and neurological problems

26
Q

What can vit b6 treat?

A

Treatment and prophylaxis of isoniazid-induced neuropathy, prevention of Penicillamine-induced neuropathy and surprisingly can also be used to treat Premenstrual syndrome

27
Q

What is vit c?

A

ascorbic acid

28
Q

What is vit c essential for?

A

necessary for the formation of collagen, promotes healing of wounds, bone fractures, bruises

Deficiency can lead to SCURVY which in severe cases can cause gingival swelling and bleeding hence ascorbic acid is given for the treatment and prevention of scurvy.

29
Q

What is vit D essential for?

A

rickets, osetomalacia

30
Q

how does someone become vit D deficient?

A

Deficiency occurs due to lack of exposure to the sun or lack of vitamin D in diet. This can lead to RICKETS (bones become soft and weak resulting in bone deformities).

31
Q

which vitamins are fat soluble?

A

vit D/E/K/A

32
Q

What is the function of vit E? Where is it found?

A

protects fts and vit A in the body from destruction by destructive O2 fragments
found in vegetable oils, margarine, nuts, wheat

33
Q

what is the main function of vit K?

A

regulate blood clotting

34
Q

what source is vit K found in?

A

green leafy veggies - such as broccoli, spinach