common vitamins and minerals Flashcards

1
Q

how much elemental calcium in calcium carbonate

A

40%

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2
Q

how much elemental calcium in calcium citrate

A

21%

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3
Q

how much elemental calcium in calcium lactate

A

18%

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4
Q

how much elemental calcium in calcium gluconate

A

9%

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5
Q

calcium doses shouldnt exceed how much elemental calcium

A

500mg

if higher amount needed divide throughout the day

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6
Q

explain calcium carbonate

A

best absorption in acidic environment and should be taken with meals
cheap
first line
well tolerated

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7
Q

calcium citrate is recommended for which patients

A

proton pump inhibitors or H2blockers
inflammatory bowel disease
absorptive disorders

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8
Q

describe calcium citrate

A

increased absorption especially in patients with a high gastric pH
may be taken on empty stomach

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9
Q

excess ingestion of calcium along with the supplements may cause

A

kidney stones, milk alkali syndrome, renal insufficiency

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10
Q

which iron preparation are napra schedule 2

A

more than 30mg of elemental iron

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11
Q

what must dietary iron be reduced to to be absorbed

A

ferrous form

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12
Q

where does most of iron absorption occur

A

distal duodenum and proximal jejunum

enteric released further down

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13
Q

complications of excess iron stored in tissues and organs

A

cirrhosis
heart failure
toxic in overdose

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14
Q

how much elemental iron is ferrous gluconate

A

12%

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15
Q

ferrous sulfate is elemental iron

A

20%

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16
Q

how much elemental iron is ferrous fumarate

A

33%

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17
Q

what are the new expensive iron formulations

A

heme ion polypeptide

polysaccharide iron complex

18
Q

how should iron be taken

A

empty stomach becuase food may impair absorption
can take with food if theres stomach irritation
start with low doses

19
Q

drug interactions with iron

A

antacids
PPI
calcium supplements
antibiotics

20
Q

side effects of iron

A

abdominal discomfort
NV
diarrhea constipation

21
Q

do b vitamins relieve stress and increase energy

A

helpful to release energy from food but get enough from diet the extra is just flushed out
no supplements can reduce stress

22
Q

non pharms for stress relief

A

reduce caffiene alcohol or smoking
exercise
sleep
relaxation techniques

23
Q

will vitamin b decrease the risk of skin cancer

A

may help high risk patients who already have nonmelanoma skin cancer not patients without skin cancer

24
Q

what is the macula

A

small area at the center of retina in back of the eye to permit seeing fine details clearly

25
Q

what is age related macular degeneration

A

loss of central vision but peripheral unaffected

decrease in sharp straight ahead vision

26
Q

what is dry AMD

A

result of thinning of the macula

develops over many years

27
Q

what is wet AMD

A

result of abnormal blood vessels growing under the retina

quickly progresses

28
Q

two treatments for AMD

A

anti-vascular endothelial growth factor injections

photodynamic therapy

29
Q

what vitamins seem to lower progression of AMD

A

vit A,C
betacarotene - increase risk of lung cancer
zinc
new formular replaces beta carotene with lutein and zeaxanthin

30
Q

who is recommended to take AREDS2

A

intermediate(two eye) to advanced stages of dry(one eye) AMD as it may reduce further progression

31
Q

who is AREDS2 not recommended for

A

early dry AMD

wet AMD

32
Q

how might orlistat effect nturients

A

decrease in the levels of some fat soluble (A,D,E,K) vitamins and beta carotene

33
Q

what is the recommendation when taking orlistat

A

take a multivitamin supplement

separate supplement from orlistat dose by minimum 2 hours

34
Q

which nutrients might metformin deplete

A

folate (B9)

vitamin B12

35
Q

recommendations when taking metformin

A

monitor hematological parameters yearly
monitor vitb12 and homocysteine levels yearly
may need supplements

36
Q

what can oral corticosteroids with high mineralcorticoid activity cause

A

steroid induced osteoporosis

37
Q

what supplements are needed in patients taking more than 7.5mg of prednisone or equivalent daily

A

calcium

vitD

38
Q

long term treatment with oral corticosteroids requires monitoring every 6 months of what

A

bone mineral density

calcium levels

39
Q

what 3 things hsould you avoid combining with vit a and beta carotene

A

retinoids - additive toxic effects
hepatotoxic meds - increase risk of liver disease
warfarin - vit a toxicity and bleeding

40
Q

what should you avoid combining with vit E and why

A

warfarin
asa
nsaids
increased risk of bleeding

41
Q

how do you manage a combo with vit e and warfarin

A

restrict dose to = 200 IU per day and monitor INR