Nutrition Care for Individuals and Groups: Topic A - screening & assessment Flashcards
what is the nutrition care process
NCP is a standardized, consistent structure and framework used to provide nutrition care. this is different from standardized care, which infers that all patients receive the same cares
ADIME documentation
assess, diagnose, intervene, monitor and evaluate
critical thinking in screening and assessment
critical thinking integrates facts, informed opinions, active listening and observations. it is a reasoning process where ideas are produced and evaluated. it includes the ability to conceptualize, think rationally, think creatively, be inquiring, and think autonomously
Data reviewed during assessment is reviewed when during NCP?
Data reviewed during assessment is reviewed during all steps of NCP.
nutrition screening
A. use of preliminary nutrition assessment techniques to identify people who are
malnourished or who are at risk for malnutrition
B. all health care team members can participate (not a part of the four step
process, but serves a supportive role); brief 5-10 minutes
C. review: client’s history, lab results, weight, physical signs
D. for screening to be effective, the mechanism must be accurate based on:
specificity (can it ID patients without a condition), sensitivity (can it ID those who
have the condition)
what is cultural competence
Cultural competence is the ability to provide care to patients with diverse values,
beliefs and behaviors and tailor delivery to meet their social, cultural and linguistic
needs.
The joint commission and nutrition risk
The Joint Commission requires that nutrition risk is
identified in hospitalized patients, but does not mandate a method of screening
subjective global assessment screening tool
SGA - Subjective Global Assessment (history, intake, GI symptoms, functional
capacity, physical appearance, edema, weight change)
Mini Nutritional Assessment
screening tool
MNA - evaluates independence, medications,
number of full meals consumed each day, protein intake, fruits and
vegetables, fluid, mode of feeding); for people 65 years of age and older
Nutrition Screening Initiative - screening tool
NSI - elderly
Geriatric Nutritional Risk Index - screening tool
GNRI - (serum albumin, weight changes)
Malnutrition Screening Tool
MST - (acute hospitalized adult population) recent
weight loss, recent poor dietary intake
Nutrition Risk Screening
NRS - (medical-surgical hospitalized) % weight loss,
BMI, intake, >70 years
Malnutrition Universal Screening Tool
MUST - (BMI, unintentional weight loss,
effect of acute disease on intake for more than 5 days
Nutrition assessment of individuals - introduction/initiation
- initiated by referral/screening of individuals or groups for nutritional risk factors
- Assessment makes comparisons between data collected and reliable standards.
It is an on-going, dynamic process that involves continual reassessment and
analysis of patient/client/group needs. It provides the basis for the Nutrition
Diagnosis.
critical thinking skills needed for nutrition assessment include
a. Observe verbal/nonverbal cues that can guide effective interviewing methods
b. Determine appropriate data to collect
c. Select tools and procedures and apply in valid, reliable ways
d. Distinguish relevant from irrelevant, and important from unimportant data
e. Validate, organize and categorize the data
components: review, cluster, identify - for nutrition assessment include
a. Review data for factors that affect nutritional and health status
b. Data is clustered for comparison with characteristics of a diagnosis:
food/nutrition related history, lab/medical tests, nutrition-focused physical
findings, anthropometrics, client history
c. These indicators are compared to identified standards and criteria for
interpretation and decision-making. Indicators are clearly defined markers that
can be observed and measured. They are also used to monitor and evaluate
progress towards nutrition outcomes. Nutrition care criteria are what
indicators are compared against.
documentation of nutrition assessment
Documentation: date and time, pertinent data and comparison with standards;
patient’s perceptions, values and motivation related to problem; changes in
patient’s level of understanding, behaviors, outcomes; reason for discharge
Dietary intake assessment, analysis
- diet history - present patterns of eating. Do not ask leading questions.
- food record - food diary, record of everything eaten in a specific period of time
- 24 hour recall - mental recall of everything eaten in previous 24 hours.
Quick tool to estimate a sample daily intake. Clinical setting.
Underreporting and overreporting are concerns. - food frequency lists - how often an item is consumed. Community setting.
Quick way to determine intakes on large numbers of people
Hamwi formula estimates desirable body weight
Frame
medium -
Women:
100 lbs for first 5’
add 5 lbs for each additional inch
subtract 5 lbs for each inch under 5’
Men
106 lbs for first 5’
add 6 lbs. for each additional inch
subtract 6 lbs or each inch under 5’
Hamwi formula estimates desirable body weight - small or large frame
small & large for women and men -
subtract 10%
add 10%
hamwi Amputations:
entire leg 16% of body weight, lower leg with foot 6%, entire arm 5%,
forearm with hand 2.3%.
Adjusted IBW = (100 - % amputation)/100 X IBW for original height
hamwi Spinal cord injury
quadriplegic reduce by 10-15% of table weight
paraplegic reduce by 5-10% table weight
% weight change -
stresses significance of weight change; assess nutritional risk
(1) usual weight - actual (current) weight / usual weight
X 100
significant weight loss
10% loss within 6 months
triceps skinfold thickness - TSF
(1) measures body fat reserves; measures calorie reserves
(2) standard: male 12.5mm; female 16.5 mm
arm muscle area AMA
(1) measures skeletal muscle mass (somatic protein)
(2) to determine: use TSF and MAC (midarm circumference)
(3) standard: male 25.3cm; female 23.2 cm
(4) important to measure in growing children
e. BMI body mass index - Quetelet index - compares weight to height
(1) weight in KG divided by height squared in meters; or weight in pounds
divided by height in inches squared X 703
(2) healthy adult 18.5 - 24.9 (healthy for most elderly 24-29), 25-29 overweight,
30 and above obese
(3) BMI for age charts starting at age two when accurate stature can be obtained
waist circumference
> 40 M, >35 F is independent risk factor for disease when
out of proportion to total body fat (with BMI of 25-34.9)
Waist circumference best for assessing risk. It predicts central adiposity
(lower torso around abdominal area)
EAL recommends at annual visit calculate
adult BMI and waist circumference to
determine risk of CVD, Type 2 diabetes.
waist/ hip ratio (WHR)
(1) differentiates between android and gynoid obesity
(2) WHR of 1.0 or greater in men, 0.8 or greater in women is indicative of
android obesity and an increased risk for obesity-related diseases
(diabetes, hypertension)
BIA bioelectrical impedance analysis
used at bedside to evaluate fat free mass
and total body water (usefulness in critical illness may be limited)
(1) must be well hydrated, no caffeine, alcohol or diuretics in the past 24 hours, no
exercise in the past 4-6 hours
(2) fever, electrolyte imbalance and extreme obesity may affect reliability
NFPE Nutrition - focused physical exam - inspection
a. Inspection: visual assessment using sight, sense of smell and hearing to observe
textures, sizes, colors, shapes and sounds
(1) information obtained: obesity, cachexia, fluid status, skin integrity, wound
healing, feeding devices, jaundice, ascites
assessment - hair -
thin, sparse, dull dry brittle
easily pluckable
vitamin C, protein deficiency, protein deficiency
assessment - eyes - pale, dry, poor vision
vitamin A, zinc or riboflavin deficiencies
assessment - lips - swollen, red, dry, cracked
riboflavin, pyridoxine, niacin deficiencies
assessment - Tongue - smooth, slick, purple, white coating
vitamin or iron deficiencies
assessment - Gums - sore, red, swollen, bleeding
vitamin C deficiency
assessment - Teeth -missing, loose, loss of enamel
calcium deficiency, poor intake
assessment - Skin - pale, dry, scaly
iron, folic acid, zinc deficiency
assessment - Nails - brittle, thin, spoon-shaped
iron or protein deficiency
Palpation
gathering data via touch using palms and fingertips
information obtained: areas of tenderness, muscle rigidity, fluid retention or
pitting edema, skin integrity and moisture, body temperature
Auscultation
listening to bowel using stethoscope on the RLQ (right lower
quadrant which is the location of the ileocecal valve))
(1) normal bowel sounds are gurgling high-pitched sounds every 5-15 seconds.
(2) hypoactive bowel sounds, every 15-20 seconds, may indicate paralytic ileus
or peritonitis.
(3) hyperactive, continuous, high-pitched, tinkling sounds may indicate diarrhea or intestinal obstruction.
Percussion
(not done by RD, but findings recorded in medical record).
Intake and output (I and O)
used to assess hydration status, measure fluid balance
serum albumin
3.5-5.0 g/dl visceral protein (blood and organs)
a. maintains colloidal osmotic pressure
b. hypoalbuminemia associated with edema, surgery
c. levels above normal range likely due to dehydration
d. long half-life, does not reflect current protein intake
serum transferrin
> 200 mg/di visceral protein (transports iron to bone marrow)
a. serum level controlled by iron storage pool; rises with iron deficiency
b. can be determined from TIBC - total iron binding capacity
c. not useful as measure of protein status
TTHY transthyretin, PAB prealbumin
16 - 40mg/dl
a. short half-life; picks up changes in protein status quickly
b. during inflammation, liver synthesizes CRP at expense of PAB
c. limited usefulness in screening or assessment
RBP retinol-binding protein
3-6mg/dl
a. circulates with prealbumin; shortest half-life (12 hours)
b. binds and transports retinal
Hct hematocrit
men 42-52%, women 36-48%, pregnant women 33%,
newborn 44-64 %
a. volume of packed cells in whole blood
Hgb hemoglobin
men 14-18 gm/di, women 12-16 gm/di; pregnant ~11
a. iron-containing pigment of red blood cells
b. erythrocytes are produced in bone marrow
serum ferritin
10-150ng/ml F 12-300ng/ml M
a. indicates size of iron storage pool
serum creatinine
0.6-1.2 mg/di M, 0.5-1.1 F
a. related to muscle mass; measures somatic protein
b. may indicate renal disease, muscle wastage