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7 Cards in this Set
- Front
- Back
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Describe what basal metabolic rate measures and how to calculate it.
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--Harris Benedict Equation -- different for men and women
--BMR = K + (weight*K) + (height*K) + (Age*K) --Used to calculate Kcal requirements in ICU |
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Which population groups are malnourished in the US.
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Elderly
Mental Illness Obese Anorexia Nervosa |
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How to calculate normal kcal requirement per day.
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*25- 30 kcal/kg/day
*Protein 1g/kg/day *Stressed patient --> increase protein 1.5–2g/kg/day –-> Increase estimate to 35-40 kcal/kg/day |
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Describe difference between kwashiorkor and marasmus.
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*Kwashiokor
– Protein malnutrition – High in calories – Deficient in protein *Marasmus – Prolonged starvation – Depletion of all fat body stores Example: anorexia nervosa |
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Give the useful lab values to measure nutritional status
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-- Albumin -Best initial marker of pts overall nutritional status; Half*life*21*days*
--Pre-albumin -- More useful in acute setting; Half*life*2*days* -- Transferrin (Fe binding blood plasma glycoproteins to control the level of free Fe reversibly) -- 1/2 life 8-10 days -- Total lymphocyte Count (TLC) -- Total Iron binding capacity -- Retinol Binding Protein (RBP) -- used to determine visceral protein mass in nutritional studies - 12 hr 1/2 life -- Serum creatinine and urea |
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Describe what occurs with refeeding syndrome and which electrolytes are at risk with this syndrome.
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--After prolonged starvation
--risk of low potassium, phosphorus and magnesium --Can lead to cardiomyopathy, diaphragm dysfunction, seizures, thrombocytopenia, hemolysis -- TX: start refeeding slowly with 10-15 KCALs/Kg/day and AGGRESSIVE Phosphorus replacement **Hypophosphatemia caused by: chronic malnutrition from prolonged TPN, alcoholism, anorexia --> refeeding stimulates insulin -- shift of phosphate -- muscle weakness/delirium -- confusion, coma, convulsions, cardiac arrythmias and arrest |
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Calculate BMI and Ranges
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BMI = Weight in Kg/ (Height in m)^2
<18.5 = underweight 18.5 - 24.9 = normal 25 - 30 = overweight 30 - 40 = Obese >40 = morbid obesity |
