Nutritional disorders Flashcards

1
Q

What vitamins can be directly measured?

A

folate, vitamin A, B12, D

vitamin C, niacin, thiamine, iron, ferritin, K, Mg, Zn

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2
Q

What vitamins are not directly measured, because serum levels do not reflect body stores

A

calcium, sodium

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3
Q

For what vitamin is a derivative measured to assess for deficiency?

A

B6- measure pyridoxal 5-PO4

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4
Q

For what vitamin is a metabolic intermediate measured to assess for deficiency?

A

B12- measure homocysteine and MMA

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5
Q

What vitamin is measured indirectly?

A

K- measure PT/INR

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6
Q

What mineral is assessed through dietary history?

A

calcium

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7
Q

Vitamin A deficiency primarily affects the _____

A

eyes

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8
Q

List ocular manifestations of vitamin A deficiency

A

night blindness
xerophthalmia
Bitot’s spots
corneal xerosis, keratomalacia

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9
Q

List skin changes of vitamin A deficiency

A

dry skin
flaky dermatitis
follicular hyperplasia

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10
Q

Vitamin A deficiency usually occurs in the context of _____

A

fat malabsorption

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11
Q

Vitamin B1 is also known as

A

thiamine

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12
Q

Thiamin/ B1 deficiency is also known as

A

berberi

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13
Q

Describe the findings in thiamine/ B1 deficiency

A

dry berberi: peripheral sensory and motor neuropathy, angular stomatosis

wet berberi: neuropathy + cardiomyopathy, CHF

Wernicke-Korsakoff syndrome: neurological complications

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14
Q

Distinguish Wernicke’s encephalopathy from Korsakoff psychosis

A

Wernicke’s encephalopathy: acute confusion, delirium, disturbances of eye movements, ataxia, tremor

Korsakoff psychosis: chronic dementia, confabulation, memory impairment

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15
Q

Thiamine/ B1 deficiency usually occurs in the context of ______

A

alcoholism

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16
Q

Vitamin B3 is also known as

A

niacin

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17
Q

Vitamin B3/ niacin deficiency is also known as

A

pellegra

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18
Q

List the 4 D’s of niacin/ B3 deficiency

A

dermatitis on sun exposed areas
diarrhea, dysphagia
dementia
death

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19
Q

Niacin/ B3 deficiency classically occurs in ______-based diets

A

corn

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20
Q

List clinical findings in folate deficiency

A
macrocytic anemia
cheilosis
diarrhea 
depression
neural defects in fetus
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21
Q

List clinical findings in B12 deficiency

A

macrocytic anemia, neurologic effects, cheilosis, anorexia, diarrhea, depression

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22
Q

List signs of vitamin C deficiency

A
scurvy- impaired collagen synthesis
bleeding gums
perifollicular petechiae
bruising
hyperkeratosis
poor wound healing
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23
Q

Vitamin D deficiency causes _____ in children and ____ in adults

A

rickets

osteomalacia

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24
Q

Describe manifestations of rickets

A

defective mineralization at growth plates–> short stature, classic bony deformities

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25
Describe manifestations of osteomalacia
impaired mineralization of bone matrix | decreased bone density, increased fractures, bone pain, muscle weakness
26
Vitamin D deficiency can occur in the setting of:
fat malabsorption | northern climates
27
In addition to true fractures, ____ may be seen in osteomalacia
pseudofractures
28
Pica and pagophagia suggest ____ deficeincy
iron
29
Pallor due to anemia is seen in deficiencies of what three vitamins/ minerals
vitamin B12 folate iron
30
Poor wound healing suggests what deficiencies (2)?
vitamin C, zinc
31
Flaky dermatitis suggests what deficiency?
vitamin A
32
Follicular hyperplasia suggests what deficiency (2)?
vitamin A, vitamin C
33
Perifollicular petechiae suggests what deficiency?
vitamin C
34
Easy bruising suggests what deficiencies (2)?
vitamin C, vitamin K
35
Dermatitis of sun exposed areas suggests deficiency of _____
niacin (vitamin B3)
36
Spooning of nails (koilonychia) suggests ____ deficiency
iron
37
Abnormal eye movements are seen in ____ deficiency
B1/ thiamine
38
Vitamin B deficiencies all tend to involve the ____
mouth
39
Magenta tongue is specifically seen in _____ deficiency
B2/ riboflavin
40
Decreased or altered taste suggests ____ deficiency
zinc
41
Tooth decay suggests _____ deficiency
fluoride
42
Arrhythmias suggests ____ deficiency
potassium
43
Muscle spasm/ tetany suggests what deficiencies (2)?
Calcium, magnesium
44
Decreased vibratory and position sense is seen in ____ deficiency
B12
45
Paresthesia and ataxia are seen in ______ deficiencies (2)?
vitamin B12, thiamine
46
Muscle weakness is seen in what deficiencies (2)?
potassium, vitamin D
47
What nutrients are most likely missing from a strict vegan diet?
B12, zinc, calcium, vitamin D
48
What groups are at risk for a generally inadequate diet?
neglected children, mentally disabled, elderly, eating disorders, anorexia form medical conditions
49
What nutrients are most likely missing from the diet of alcoholics?
B6, folate, B12, vitamin C, poor absorption of thiamine and folate
50
____ deficiency is usually due to slow GI bleeds or heavy menses
iron
51
____ deficiency is usually due to chronic diarrhea or diuretic use
potassium
52
______ deficiency is usually due to loss in the urine in alcoholics, people on diuretics, or with uncontrolled diabetes
magnesium
53
People with celiac disease often have deficiencies of:
Folate, B12 fat soluble vitamins esp D, K calcium iron
54
People with ileal resection or gastrectomy often have ____ deficiency
B12
55
People who have undergone gastric bypass surgery should have what nutrients supplemented?
B12, vitamin D, calcium, iron
56
In the setting of blind loop syndrome, there is likely to be deficiencies of ___ and _____ vitamins
B12 and fat soluble
57
Pregnant women need supplements of:
folic acid | iron
58
Drugs like corticosteroids or anticonvulsants increase the risk of deficiencies in:
vitamin D calcium folate
59
Sulfasalazine, TMP/sulfa, and methotrexate all impair ____ absorption
folate
60
People taking PPIs have lower gastric acidity and are at risk of what deficiencies?
B12, Mg, Ca, iron
61
What healthy people should consider vitamin/ mineral supplements?
``` pregnant or lactating women strict vegans people on weight reduction diets elderly northern climates ```
62
Many vitamin/ mineral deficiencies are _____ and can be anticipated and monitored for
iatrogenic