homework quiz 6&8 Flashcards
A young man with cystic fibrosis has just been diagnosed with night blindness although he eats a variety of colorful vegetables and fruits. How would you explain this?
he is not absorbing the nutrients
what statements correctly describe renal failures impact on the function of vitamin D?
A. vitamin D must be converted in the lover and then activated in the kidneys
B. those with renal failure do not produce the enzymes necessary to digest vitamin D
C. renal failure speeds up the metabolism of vitamin D leading to deficiency
D. renal failure can lead to osteodystrophy as low levels of vitamin D cause calcium to be pulled from the bones
A & D
what disease can be caused by overusing sunscreen and drinking soft drinks instead of milk
rickets in children and osteomalacia in adults
people with what conditions would benefit from increased vitamin C?
pregnancy
degenerative disease
cigarette smoking
common cold
anxiety
gastric ulcers
what statements are true about vitamin B12
A. vegans area at risk for pernicious anemia
B. vitamin B12 is only found naturally in animal products
C. treat pernicious anemia by fortifying vitamin B12 in grains
D. the forms of B12 used in fortification require gastric acid for effective absorption
A & B
what are S&S of niacin toxicity?
gastrointestinal upset
hyperglycemia
skin itching and bruising
liver damage
which populations are at risk for ariboflavinosis?
DM
hemodialysis
pregnant women
lactose intolerant
can treatment for pernicious anemia be achieved by fortifying vitamin V12 in grains?
no
is gastric acid necessary for the digestion of vitamin B12?
no
