Download - Determining Needs
Determining Needs
• Working knowledge of fluid and electrolyte requirements.
• Have working knowledge of methods of assessing nutrition status.
Determining Needs
• Collect pertinent information for comprehensive nutrition assessment.
Determining Needs
• What are the factors that affect total energy needs?
What weight to use?
• Energy needs– obese use actual wt.
• Protein needs– obese use IBW– under 120% IBW use actual
What weight to use?
• Fluid needs– obese use IBW– under 120% IBW use actual
Harris Benedict Formula
• Men– kcal/day– 66 + (13.8 x W) + (5 x H) - (6.8 x A)
Harris Benedict Formula
• Women– 655 + (9.6 x W) + (1.8 x H) - (4.7 x A)
• W = wt in kg
• A = ht in cm
• A = age in years
Total Daily Energy
• TDE = BEE x AF x IF
• AF - activity factors
• IF - injury factors
Rule of Thumb
• Men– 106 lb for 5 ft plus 6 lb per inch over 5 ft– 106 lb minus 6 lb per inch under 5 ft
Rule of Thumb
• Women– 100 lb for 5 ft plus 5 lb per inch over 5 ft– 100 lb minus 5 lb per inch under 5 ft
Energy/kg wt
• wt in kg x kcal/kg = kcal need
Fever & Energy Needs
• Normal body temperature– 98.6 degrees F
• BEE increases 7% for each degree F above normal
Protein Needs
• What is normal?
• What is maximum?
Fat Needs
• How do you determine g fat if have a target of % kcal from fat?
Fat Needs
• Need 4% of total daily kcal provided by linoleic acid to prevent EFA deficiency
CHO Needs
• Usually be difference
Fluid Needs
• 1 ml/kcal consumed - adult
• 1.5 ml/kcal consumed - infant
• 25-40 ml/kg body wt
• Conduct an I&O also
Fluid Needs
• Dx of concern?
Vitamin & Mineral Needs
• Conduct a through diet hx
• Look at current food intake
• Know what diseases & dx may result in vitamin & mineral deficiencies
• Keep RDA & DRI in mind
END NEEDS
• Questions?