Domain II Flashcards
SGA
Subjective Global Assessment
- history
- intake
- GI symptoms
- functional capacity
- physical appearance
- edema
- weight change
MNA
Mini Nutritional Assessment
- evaluates independence, medications, number of full meals consumed each day, protein intake, fruits and vegetables, fluid, mode of feeding
- 65+
NSI
Nutrition Screening Initiative
- elderly
GNRI
Geriatric Nutritional Risk Index
- serum albumin
- Weight changes
MST
Malnutrition Screening Tool
- acute hospitalized adult population
- recent weight loss, recent poor dietary intake
NRS
Nutrition Risk Screening
- medical-surgical hospitalized
- % wt. loss, BMI, intake
- > 70 yeras old
MUST
Malnutrition Universal Screening Tool
- BMI, unintentional weight loss, effect of acute disease on intake for more than 5 days
Nutrition Indicators
clearly defined markers that can be observed and measured
also used to monitor and evaluate progress toward nutrition outcomes
Nutrition Care Criteria
what indicators are compared against
24 hour recall
best tool for a clinical setting when the dietitian is involved because the RD can clarify amounts and other factors
Critical Thinking - Nutrition Care Process
Integrates facts, informed opinions, active listening, and observations.
A reasoning process where ideas are produced and evaluated.
Includes ability to conceptualize, think rationally, think creatively, be inquiring, and think autonomously
Joint Commission
Nutrition risk in hospitalized patients should be identified within 24 hour of admission, but no mandate of a method for screening
Critical thinking skills needed for nutrition assessment
- observe verbal/nonverbal cues that can guide effective interviewing methods
- determine appropriate data to collect
- select tools and procedure sand apply in valid, reliable ways
- distinguish relevant from irrelevant and important from unimportant data
- validate, organize and categorize data
amputation percentages for IBW adjustment
entire leg = 16%
lower leg = 6%
entire arm = 5%
forearm = 2.3%
spinal cord injury IBW adjustment
quadriplegic: reduce by 10-15%
paraplegic: reduce by 5-10%
TSF
tricep skinfold thickness
measures body fat and calorie reserves
Male: 12.5mm
Female: 16.5mm
AMA
arm muscle area
Measures skeletal muscle mass = somatic protein
Use TSF and AC (arm circumference)
Male: 25.3cm
Female: 23.2cm
*Important for growing children
Waist circumference
M: >40
F: >35
independent risk factor for disease when out of proportion to total body fat (with BMI 25-34.9)
WHR
waist/hip ratio
1.0 or greater in men
0.8 or greater in women
indicative of android obesity and increased risk for obesity-related diseases
BIA
measures fat-free mass and total body water
well hydrated, no caffeine, alcohol, or diuretics in past 24 hours
no exercise in past 4-6 hours
Bod Pod
air displaced
accuracy = underwater weighting
NFPE - hair
thin, sparse, dull dry brittle, easily pluckable
vitamin C, protein deficiency
NFPE - eyes
pale, dry, poor vision
Vitamin A, zinc or riboflavin
NFPE - lips
swollen, red, dry, cracked
riboflavin, pyridoxine, niacin
NFPE - tongue
smooth, slick, purple, white coating
vitamin or iron
NFPE - gums
sore, red, swollen, bleeding
vitamin c
NFPE - teeth
missing, loose, loss of enamel
calcium deficiency, poor intake
NFPE - skin
pale, dry, scaly
iron, folic acid, zinc
NFPE - nails
brittle, thin, spoon-shaped
iron or protein
Serum albumin
3.5 - 5.0 g/dL
maintains colloidal osmotic pressure
hypoalbuminemia a/w edema (fluid travels into interstitial space)
high albumin = dehydration
serum transferrin
> 200 mg/dL
- transports iron to bone marrow (visceral protein)
- when iron pool decreases, transferrin synthesis increases
- can be determined from TIBC
- Used to detect anemia
TTHY, PAB
transthyretin, prealbumin
16-40 mg/dL
- picks up changes in protein status (half-life 2-3 d)
- during inflammation, liver synthesizes CRP at expense of PAB
- limited usefulness in screening or assessment
RBP
retinol-binding protein
3-6 mg/dL
12 hour half life
circulates with prealbumin
binds and transports retinol
Hct
Men 42-52%
Women 37-47%
Pregnant women 33%
Newborn 44-64%
*volume of packed cells in whole blood
Hgb
Men 14-17 gm/dL
Women 12-15 gm/dL
Pregnant <11 gm/dL
iron-containing pigment of RBC
erythrocytes are produced in bone marrow
Serum ferritin
10-150 ng/mL - female
12-300 ng/mL - male
indicates size of iron storage pool
Serum creatinine
0.6-1.4 mg/dL
related to muscle mass, measures somatic protein
may indicate renal disease and muscle wastage
Use with BUN
CHI
Creatinine height index
normal = 80%
ratio of creatinine excreted / 24 hours to height
estimates LBM - somatic protein
60-80% = mild muscle depletion
BUN
10-20 mg/dL
related to protein intake
indicator of renal dz
BUN:creatinine ratio
normal = 10-15:1
Urinary creatinine clearance
115 +/- 20 mL/minute
measures GFR
estimate includes BSA
TLC
total lymphocyte count
> 2700 cells/cu mm
measures immunocompetency
decreased in protein-energy malnutrition
moderate depletion = 900-1800
severe depletion = <900
CRP
c-reactive protein
marker of acute inflammatory stress
as it declines, indicates when nutritional therapy would benefit
when elevated CRP decreases, PAB increases
FEP
Free erythrocyte protoporphyrin
direct measure of toxic effects of lead on heme synthesis
increased in lead poisoning
lead depletes iron leading to anemia
PT
prothrombin time
11.0-12.5 seconds
85-100% of normal
anticoagulants prolong PT
change in vitamin K intake will alter rate
Activity Factors and BEE
BEE x 1.2 sedentary
BEE x 1.3 active
BEE x 1.5 stressed
megestrol acetate
appetite stimulant
orlistat
decrease fat absorption by binding lipase
vitamin / mineral supplement needed
marinol
appetite stimulant
Statins (HMG CoA reductase inhibitors)
decreased LDL, TG
Increase LDL
Chemotherapy
malabsorption
mineral oil, cholestyramine
decrease absorption of fat and fat-sol vitamins
glucocorticoids
protein deficits
oral contraceptives
decrease folate, B6, C