3.3 nutrition Flashcards

1
Q

what is the estimate of BMR for a normal, unstressed patient?

A

25 kcal/kg/day

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2
Q

how many kcal/g is fat?

A

9 kcal/g

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3
Q

how many kcal/g are carbs?

A

3.4 kcal/g

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4
Q

how many kcal/g is protein?

A

4 kcal/g

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5
Q

what are essential amino acids needed for in the body?

A

inflammatory mediators (PGs, leukotrienes, and thromboxanes)

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6
Q

what is the ideal non-protein calories/grams nitrogen ratio?

A

150:1

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7
Q

what are the daily protein needs of a patient?

A

0.8 g/kg

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8
Q

what percentage of total kcals should fat be?

A

30-40%

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9
Q

what is the main fuel source for the heart?

A

FAs/phospholipids

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10
Q

what is the main fuel source for the brain?

A

glucose

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11
Q

what % solution is dextrose usually?

A

70%

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12
Q

what % solution are phospholipids usually?

A

20%

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13
Q

what % solution are proteins/AAs usually?

A

15%

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14
Q

what is the normal urine output for everyone?

A

0.5-1 cc/kg/hour

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15
Q

how do you calculate fluid requirements?

A

100 cc/kg for 1st 10 kg +
50cc/kg for next 10kg +
20cc/kg for the remaining kgs

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16
Q

what is the calculation for a fluid bolus?

A

20cc/kg of body weight

17
Q

what are the most common deficiencies?

A

protein, iron, B12, folate, thaimine (B1)

18
Q

what are the most common deficiencies in gastric bypass?

A

B12, iron, fat soluble vitamins, thiamine (b1)

19
Q

what is the estimated BMR for someone with severe metabolic stress? moderate?

A

35 kcal/kg/day

30 kcal/kg/day

20
Q

what is the calorie count for most enteral formulas?

A

1 kcal/cc

21
Q

what is the respiratory quotient formula?

A

RQ= CO2 eliminated/O2 consumed

22
Q

what is the RQ for carbs?

A

1 (will make CO2 worse in people retaining CO2)

23
Q

what is the RQ for protein?

A

0.8-0.9

24
Q

what is the RQ for fat?

A

0.7

25
Q

what the RQ for ketones, eucaloric?

A

0.73

26
Q

what is the RQ for ketones, hypocaloric?

A

0.6

27
Q

how do you measure nutritional success?

A

pre-albumin
transferrin
retinol-binding protein

28
Q

what is the primary fuel source during starvation

A

protein

29
Q

6.25 g of protein contains about 1 g of N?

A

yes

30
Q

what is the preferred fuel for the SI?

A

glutamine