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UNIT 4 NS270 NUTRITIONAL ASSESSMENT AND MANAGEMENT Amy Habeck, RD, MS, LDN
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Recognition Presentation download Good sources Excellent writing skills
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Unit 4 Learning Objectives: 1) Practice Calculations 2) Review- Nutrition and Diet Therapy a) Chapter 7 – Assessment of the Hospitalized Patient 3) Answer your questions
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Assessing Nutritional Status Screening of hospitalized patients Completed within first 24-48 hours Identifies characteristics known to be associated with nutrition problems Malnutrition Nutritional risk What are some diagnoses that put a patient at increased nutritional risk?
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Examples of diagnoses that indicate nutritional risk Dysphagia Bowel resection FTT COPD Pressure ulcers Cancer HIV/AIDS Stroke or hemiparesis GI bleeding Crohn’s disease Organ transplant CAD DM Pancreatitis SBO Short bowel syndrome
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Nutritional Assessment Ht Wt UBW History Diagnosis Test results Anthropometric measurements Biochemical measures REE Specialized nutritional assessment
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Case Study Helen is a 72 y.o. Hx: osteoporosis with compression fx KH=knee height=16.5 inches A= age=72 How can you estimate her height? table 7.1, page 219 Same type of question as #1
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Case Study Helen is a 72 y.o. Hx: osteoporosis with compression fx How can you estimate her height? Table 7.1 page 219 S=75.00 +(1.91 KH)-(0.17A) S=stature KH=knee height A= age
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Case Study-Estimate Stature S=75.00 +(1.91 KH)-(0.17A) S=stature KH=knee height in cm KH=16.5 inches KH=16.5 in x 2.54cm/in=41.91cm A= age=72 S=75.00+(1.91x41.91)-(0.17x72) S=75.00+80-12.2 S=142.8 cm
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Evaluating Desirable Body Weight- Hamwi equations Men 5’ = 106# + 6# for every additional inch +/- 10% Women 5’=100# + 5# for every additional inch +/- 10% Height-weight tables What are some of the limitations of the height-weight tables?
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Let’s Practice-Number 4 48 year old patient, Ms. Geneva Female Height: 5’6” Actual body weight: 155# What is her desirable or ideal body weight? Use the Hamwi equation Page 170-171
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Let’s Practice 48 year old patient, Ms. Geneva Female Height: 5’6” What is her desirable or ideal body weight? Women: 5’=100 + (5x6) +/- 10% 130+/- 10% or 130x.9 to 130x1.1 117-143#
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%IBW 48 year old patient, Ms. Geneva Female Height: 5’6” Actual body weight: 155# Calculate her percent IBW using the IBW determined by the Hamwi equation on previous slide.
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%IBW 48 year old patient, Ms. Geneva Female Height: 5’6” Actual body weight: 155# Calculate her percent IBW using the IBW determined by the Hamwi equation. IBW: 117-143# Actual body weight/IBW x 100= 155/117-143 x100=132-108% IBW
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Amputation Adjustments-number 2 Page 225, table 7.5 48 year old patient, R BKA (right leg, below knee amputation) Female Height: 5’6” Actual body weight: 155# What percentage of her body weight would the right below knee amputation represent? How would you adjust her IBW to account for the loss of the partial limb?
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Amputation Adjustments What percentage of her body weight would the right below knee amputation represent? Lower leg represents 7.1% (5.3+1.8) of body weight How would you adjust her IBW to account for the loss of the partial limb? Adjusted weight= current weight/(100-% amp) x 100 Adjusted weight=155/(100-7.1) x 100 = 166.8#
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Calculate BMI based on adjusted body weight-number 3 P176, classification table 6.6 Adjusted weight=155/(100-7.1) x 100 = 166.8# Ht= 5’6”=66” BMI based on adjusted body weight= BMI=ABW(pounds)/ht(in)/ht(in)x703= BMI=166.8/66/66x703=26.9
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Using Anthropometric Measures to estimate weight-practice Number 5 Known: MAC and CC (both in cm) Equation: page 224, table 7.3 Female: (MAC x 1.63)+(CCx1.43)-37.46 Male: (MACx2.31)+(CCx1.5)-50.10 Sample: MAC=30 cm, CC=34cm, female (MAC x 1.63)+(CCx1.43)-37.46= (30 x 1.63)+(34x1.43)-37.46= 48.9+48.62-37.46=60kg 60kgx2.2pounds/kg=132
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Using Anthropometric Measures to estimate weight-practice Number 6 Known: KH and MAC (both in cm) Equation: page 225, table 7.4
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24 Hour Energy Expenditure What factors make up the energy expended in a 24 hour period? How is BMR measured?
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24 Hour Energy Expenditure 24 hour energy expenditure= Resting energy expenditure Thermic effect of food Thermic effect of exercise Thermic effect of disease or injury 24 hour EE=REE+TEF+TEE+TED How is BMR measured? 6-12 minutes period in post-absorptive state 30 minutes of quiet rest preceeding testing Thermally neutral environment Measure oxygen consumption
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Calculating REE Calculate the REE for Ms. Geneva What results do you get with each of the methods below? Harris-Benedict WHO National Academy of Sciences How do they compare? Which method do you like better and why? Apply an activity factor for average activity to each of your results. List the answer separately.
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Ms. Geneva-Harris Benedict 48 year old female patient, s/p R BKA Height: 5’6”=66inx2.54cm/in=167.6cm Actual body weight: 155#x1kg/2.2#=70.5kg REE=655.1+9.6W+1.9S-4.7A REE=655.1+(9.6x70.5)+(1.9x167.6)-(4.7x48) REE=655.1+676.8+318.4-225.6 REE=1425 kcal/day
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Ms. Geneva- WHO 48 year old female patient, s/p R BKA Height: 5’6”=66inx2.54cm/in=167.6cm Actual body weight: 155#x1kg/2.2#=70.5kg REE=8.7W+829 REE=8.7x70.5+829 REE=613.4+829 REE=1442kcal/d
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Ms. Geneva- NAS 48 year old female patient, s/p R BKA Height: 5’6”=66inx2.54cm/inx1m/100cm=1.68m Actual body weight: 155#x1kg/2.2#=70.5kg REE=247-(2.67xA)+(401.5xht)+(8.6xwt) REE=246-(2.67x48)+(401.5x1.68)+(8.6x70.5) REE=245-128.2+674.5+606.3 REE=1398kcal/d
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Compare Harris Benedict REE=1425kcal/d WHO REE=1442kcal/d NAS REE=1398kcal/d How do you think these equations compare? Which one is easiest to use and remember?
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Calculate TEE for Overweight Adults-number 9 Complete the calculations for Ms. Geneva using the TEE equation in Table 7.10 on page 235. Use an activity factor for active adults.
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Calculate TEE for Overweight Adults 48 year old female patient, s/p R BKA Height: 5’6”=66inx2.54cm/in=167.6cm Actual body weight: 155#x1#/2.2kg=70.5kg TEE=448-(7.95xage)+PA x(11.4x Wt + 619x ht) TEE=448-(7.95x48)+1.27 x(11.4x70.5+619x1.68) TEE=448-(7.95x48)+1.27 x(803.7+1039.9) TEE=448-384.6+1.27 x 1843.6 TEE=448-384.6+2341.4 TEE=2405kcal/d
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Injury Factors Assume our same patient, Ms. Geneva, has undergone major surgery. How does that affect her energy requirements? What do you estimate her energy requirements to be after the surgical procedure?
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Injury Factors – Major Surgery What do you estimate her energy requirements to be after the surgical procedure? Major surgery increases energy requirements by a factor of 1.1-1.3 times original TEE TEE=2405kcal/d x (1.1 to 1.3) TEE=2646-3127kcal/d
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Estimating Protein Needs-number 11 Estimate Ms. Geneva’s protein needs for an individual who has undergone major surgery. How can you determine if she is meeting her protein requirements? P 239, table 7.13
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Estimating Protein Needs Estimate Ms. Geneva’s protein needs for an individual who has undergone major surgery. Moderate stress level: 1.2-1.8 gm/kg How can you determine if she is meeting her protein requirements? UUN Calorie count assessment
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Nitrogen Balance Ms. Geneva Protein intake: 84 gm protein Determined from 24 hour calorie count UUN = 10 Measured from 24 hour urine collection Is she is positive or negative N2 balance? How did you calculate it?
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Nitrogen Balance Ms. Geneva Protein intake: 84 gm protein UUN = 10 Is she is positive or negative N 2 balance? Negative nitrogen balance How did you calculate it? See next slide
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Calculating Nitrogen Balance Ms. Geneva Protein intake: 84 gm protein UUN = 10 How do you calculate N 2 Balance? N 2 balance = (protein intake/6.25) – UUN-4 N 2 balance=(84 gm/6.25)-10-4 N 2 balance=13.44-10-4 N 2 balance=-0.56
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EER-number 8 sample P 233-234, table 7.9 EER for males >19 years PA=physical activity factor Ht in m= 1.78m, wt in kg=90.5, PA=1.11 (low active), age=45 EER=662-9.53(age)+PA x(15.91x wt+539.6 x ht) EER=662-9.53(45y)+1.11 x(15.91x 90.5kg+539.6 x 1.78m) EER=662-428.85+1.11 x( 1439.9+ 960.49) EER=662-428.85+1.11 x( 2400.39) EER=662-428.85+ 2664.4 EER=2897.55 kcal
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Ireton-Jones-number 10 Ireton-Jones recommended for overweight individuals in critical condition Activity factors (AF): box 7.3, page 233 Injury factors (IF): table 7.11, page 237 Obesity factor: 1=BMI>27, 0=BMI<27 IJEE: 629-11(age)+25(wt)-609(obesity factor)
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Questions About Assessment of Hospitalized Patients?
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Farewell Thank you for your kind attention and participation! Email any time - ahabeck@kaplan.edu
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