nutritional assessment and micronutrients Flashcards

1
Q

evaluation of a patient’s nutritional status based on subjective and objective clinical information

A

nutrition assessment

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2
Q

4 functions of nutrition assessment

A
  1. assess quality and quantity of intake
  2. determine if medical nutrition therapy or counseling is warranted
  3. evaluate effectiveness of nutritional interventions
  4. monitor changes in nutritional status
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3
Q

why are nutritional assessments important?

A
  1. obesity and malnourishment are common
  2. accurate nutritional assessment = better dx/tx
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4
Q

4 things to consider while taking medical history

A
  1. Medical Hx - full history of past and current health problems
  2. Medication Use - full list of prescription and OTC meds
  3. Family Hx - emphasis on conditions that affect or are affected by nutritional intake
  4. Social Hx - traditional place in the history where diet information is obtained
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5
Q

place where they live, who they live with, their income, their transportation, etc., that have a big impact on a pt’s food selection and preparation

A

socioeconomic factors
considered when taking social hx

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6
Q

what is retrospective questioning method

A

Ask the patient to write down everything consumed in the last 24 hours

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7
Q

what is prospective dietary evaluation

A
  • Ask the patient to write down everything consumed daily, as they consume it
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8
Q

how does prospective dietary evaluation help mitigate recall bias and provide a more accurate estimation

A
  • Requires greater patient compliance and later-date follow-up
  • Longer log period = greater accuracy
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9
Q

BMI value for obese

A

+30

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10
Q
  • A measure of risk in normal weight and overweight/obese patients
  • Indicates excess fat in the abdominal area (visceral adipose tissue)
A

waist circumference

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11
Q

what are macronutrients

A

proteins, carbs, fats

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12
Q

what are micronutrients

A

dietary substances consumed in smaller amounts than macronutrients, but still essential to the body
- vitamins
- mineral
-essential AA
- essential FA

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13
Q

organic compounds required by the body for survival but generally not produced endogenously in sufficient amounts

A

vitamins

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14
Q

what are fat-soluble vitamins

A
  • A, D, E, K
  • excess intake is stored in fatty tissues
  • Deficiency usually seen in fat malabsorption syndromes (bariatric surgery, GI illness)
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15
Q

what are water-soluble vitamins

A
  • B complex and C
  • generally widely available in foods, only limited storage in the body
  • Deficiency usually seen in patients with poor nutritional intake or malabsorption
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16
Q

which vitamin class would patients have a higher chance of toxicity from?

A

fat-soluble

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17
Q

similar metabolic roles to vitamins, but have no known deficiency syndrome and/or are made endogenously

A

vitamin-like substances
Choline
Taurine
l-Carnitine
Inositol
Bioflavonoids
Alpha-Lipoic Acid
Coenzyme Q (CoQ)

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18
Q

role of thiamine (B1)

A

neuro metabolism*
glucose metabolism
antioxidant

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19
Q

who is usually deficient in thiamine (B1)

A

alcoholics*
poor diet/restricted diet

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20
Q

symptoms of deficiency of thiamine B1

A

Beriberi - classic syndrome of deficiency
- Wet beriberi - cardiovascular - heart failure, cardiomegaly, edema, ↑ HR, SOB (fluid retention)
- Dry beriberi - neurologic - symmetrical sensory and motor neuropathy - Includes Wernicke’s Encephalopathy and Korsakoff Syndrome

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21
Q

role of niacin B3

A

General metabolic processes throughout the body* - create NAD and NADP coenzymes, used for energy

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22
Q

who is usually deficient of niacin B3

A

alcoholics, anorexics, HIV*, malabsorption pts

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23
Q

Symptoms of deficiency of niacin B3

A

Pellagra - classic syndrome of deficiency
- “3 Ds” - photosensitive dermatitis*, diarrhea (with other GI symptoms), dementia (advanced)

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24
Q

role of pyridoxine B6

A

protein and neurotransmitter metabolism, gluconeogenesis

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25
Q

who is usually deficient of pyridoxine B6

A
  • CKD, GI disease (IBD, celiac), autoimmune pts (kidney and gut problems)*
  • meds: oral contraceptives*, anti-TB, theophylline, L-dopa
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26
Q

symptoms of deficiency of B6

A

anemia, dermatitis (including stomatitis), depression, seizures

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27
Q

role of folate B9

A

amino acid and nucleic acid metabolism, cell division

28
Q

what is the most common nutrient deficiency in the US

A

folic acid/folate

29
Q

who is usually deficient of folate

A
  • alcoholics, poor diet (low veggie intake), smokers, malabsorption pts, MTHFR patients
  • meds: trimethoprim, methotrexate, phenytoin
30
Q

symptoms of deficiency of folate

A

anemia, glossitis/stomatitis, GI upset, fatigue

31
Q

role of Cobalamin/Cyanocobalamin (B12)

A

nucleic acid metabolism, conversion of folate to active form, numerous other metabolic roles

32
Q

who is usually deficient of B12

A
  • vegan diet*, GI illness causing malabsorption
  • Meds: chronic PPI (for GERD)
33
Q

symptoms of deficiency of B12

A

anemia, peripheral neuropathy, cognitive defects, fatigue

34
Q

role of vit. C

A

antioxidant, gene expression, production of many important proteins including collagen

35
Q

who is usually deficient of vit. C

A

alcoholics, smokers, poor/restricted diet, dialysis

36
Q

classic syndrome of vitamin C deficiency

A

Scurvy
fatigue, gingivitis, poor wound healing

37
Q

role of vitamin A

A

key component of rods and cones in the retina, epithelial cell reproduction, bone/teeth/reproductive/immune function

38
Q

Who is usually deficient of vitamin A

A

underdeveloped countries, poor diet, fat malabsorption

39
Q

symptoms of deficiency of vitamin A

A

night blindness, blurry vision, xerosis, keratomalacia

40
Q

who gets toxicity of vitamin A? s/s?

A

excessive supplements
altered mental status, seizures, headache, blurred vision

41
Q

role of vitamin D

A

needed for absorption of calcium in gut; receptors found throughout the body

42
Q

what is the active form of vitamin D

A

calcitriol
D3
D2 - inactive

43
Q

Who is usually deficient of vitamin D

A

low sunlight exposure, darker-skinned individuals, poor diet, renal or liver disease pts, breastfed newborns

44
Q

symptoms of deficiency of vitamin D

A

MSK*
- fatigue, bone pain, muscle weakness or cramps

45
Q

who is usually toxic of vitamin D? s/s?

A

excessive supplements
MSK - fatigue, bone pain, muscle weakness or cramps

46
Q

role of vitamin E

A

antioxidant, cell membranes

47
Q

who is usually deficient of vitamin E

A

malnourished pts, fat malabsorption
RARE

48
Q

symptoms of deficiency of vitamin E

A

ataxia, muscle weakness, impaired vision

49
Q

s/s of toxicity of vitamin E

A

bleeding, muscle weakness, fatigue, nausea, vomiting

50
Q

role of vitamin K

A

blood clotting*
bone and kidney metabolism

51
Q

who is deficient of vitamin K

A

newborns*, fat malabsorption, warfarin pts
newborn bc they dont have the gut flora yet

52
Q

symptoms of deficiency of vitamin K

A

bleeding, including hemorrhage; bone malformation

53
Q

inorganic compounds required for survival

A

minerals

54
Q

inorganic compounds found most abundantly in human tissues

A

macrominerals
Calcium, phosphorus, magnesium, potassium, sodium, chloride, sulfur

55
Q

inorganic compounds found in small amounts

A

trace elements
Iron, copper, zinc, iodine, chromium, fluoride, nickel, arsenic, molybdenum, selenium, manganese, silicon, boron, tin, vanadium

56
Q

role of iron

A

majority is found in RBCs to transport O2

57
Q

2 types of iron

A

heme - meat
nonheme - green leafy veggies
- not as wall absorbed compared to heme

58
Q

symptoms of deficiency of iron

A

fatigue, anemia, cognitive difficulties, impaired immunity

59
Q

what is the most common nutritional deficiency worldwide

A

iron

60
Q

role of iodine

A

majority is incorporated into thyroid hormones for metabolic function

61
Q

risk for deficiency of iodine

A

Countries with low iodine content in soil and no required fortification

62
Q

s/s of deficiency of iodine

A
  • thyroid goiter
  • In pregnant women - pregnancy loss, infant psychomotor retardation, cretinism
63
Q

what are the 2 bone minerals and what are their differences

A
  1. calcium - fortified foods
    - s/s of deficiency: neuro/MSK symptoms (weakness, AMS, muscle spasm, muscle weakness, thinned bones)
    - Risk factors: restricted diet, malabsorption/GI disease
  2. magnesium
    - s/s of deficiency - neuro/MSK symptoms (fatigue, weakness, AMS, muscle spasm, muscle weakness)
    - Risk factors: + renal disease, diuretics, PPIs
64
Q

9 out of 20 dietary amino acids cannot be synthesized and must be consumed

A

essential amino acids
deficiency is rare

65
Q

linoleic acid and alpha-linoleic acid that must be consumed

A

essential fatty acids
deficiency is rare

66
Q

arachidonic acid is synthesized from ?

A

linoleic acid

67
Q

essential fatty acid deficiency is rare but can be seen in

A

pts on total parenteral nutrition (TPN)