Vitamin Deficiency Flashcards
What is vitamin A?
retinol, fat soluble vitamin
What is its main function of vit A?
necessary for normal eyesight, body tissues, growth and bone formation, resistance to infection, colour and night vision
When should high levels of vit A be avoided?
in pregnancy
Where is vitamin A acquired from?
liver, fish liver oils, whole or fortified milk, eggs, carrots and dark-green leafy vegetables, peaches, apricots
What are signs of deficiency of vitamin 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
What is vitamin B1?
thiamine
What is the function of vitamin B1?
vital for normal functioning of all body cells, especially nerves
helps body break down carbs, protein and fat for energy
What is the important safety advise given by the MHRA/CSM for vitamin B1?
potentially serious allergic adverse reactions when given IV
Where is vit B1 acquired?
pulses, brewers yeast, liver/pork, dried beans and peas, collard greens, oranges, wheat germ, breads and cereals whole grain, peanuts
What are signs of deficiency of vit B1?
fatigue, LOA, weight loss, GI upsets, N/weakness, mental confusion, muscular weakness, paralysis of extremities, heat problems, loss of reflexes
what is a severe deficiency of vit B1? How is treated?
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.
What has been associated with parenteral administration of thiamine?
serious anaphylaxis
What is vitamin B2
riboflavin
what is vit B2 necessary for?
normal release of energy from carb, protein and fat in food. growth development of normal hormones
what sources is vit b2 attained from?
dairy products, meat, fish, grains, cereals, broccoli, asparagus, spinach