Cumulative Final - Nutrition (Walroth) Flashcards
Equation for male IBW
50 + 2.3 (ht > 60 inches)
Equation for female IBW
45.5 + 2.3 (ht > 60 inches)
Equation for NBW
IBW + 0.25 (ABW-IBW)
How to calculate MIVF
30-40 ml/kg/day
How to calculate protein requirement
1-1.5 g/kg/d (for medsurge pts)
1.5-2 g/kg/day (for trauma/ICU/intubated pts)
How many kcal in 1 gram of protein
4 kcal
How to calculate total kcal
25-30 kcal/kg/day
How to calculate NPC
total kcal - kcal from protein
What is the normal ratio for NPC
70% carbs: 30% fat
What can cause the normal ratio of NPC to change
If pt has high BG or has diabetes, we may want to give a little more fat than carbs; if pt has a bacterial infection, we would not give fat
What amount of calcium does a pt get
10 mEq/d
What amount of magnesium does a pt get
8 mEq/d
How to calculate amt of sodium pt gets
MIVF in L x (77 mEq/L)
How to calculate amt of potassium a pt gets
0.5 mEq/kg/d
How to calculate amt of phosphorous a pt gets
0.3 mMol/kg/day; then multiply by 1.4 mEq/mMol
Positive ions in balancing ion equation
Sodium and Potassium
Negative ions in balancing ion equation
Chloride, Acetate, and phosphate
How much chloride does a pt get?
2/3 of total negative ions remaining
How much acetate does a pt get?
1/3 of total negative ions remaining
If a patient doesn’t have organ failure, what additives should be added to their IV bag?
10 ml MVI
1 ml MTE
Which 2 lab values should ALWAYS be taken together?
CRP and pre-albumin
How to calculate nitrogen balance
N2 = N in - N out
How to calculate Nin
24-hour protein intake (g)/6.25 g of N2
How to calculate Nout
24-hour UUN (g) + 4 g
How to calculate total energy expenditure (TEE)
REE x 1.2 (this is the minimum amt of kcal a pt needs)
Normal RQ range
0.85-0.95
What do values outside of RQ range mean?
<0.85 (pt is underfed)
>0.95 (pt is overfed)
