Nutrition Flashcards
What is the percentage of malnourished patients upon admission?
35-50%
Malnutrition affects:
- illness
- recovery
- wound healing
- infections are prolonged
Important factor for the hospitalized patient:
-intake of nutritious food (can shorter hospitalized stays)
What is the percentage of obesity in the U.S?
30.5% with a BMI > or = 30
Impacts of obesity
- obese pts stay an average of 1.5 days longer
- wound healing is impaired (diminished tissue perfusion)
- obesity carries a nearly 6-fold increase in MORTALITY rate
Challenges with obese pts
- respiratory (sleep apnea)
- challenging x-ray reading
- entubating is difficult
Basal Metabolism
Energy required to carry on the involuntary activities of the body at rest (maintaining body T *, muscle tone, secretions, inflating lungs…)
Factors for BMR increase
- growth
- infection
- fever
- emotional tension
- elevated hormones
Factors for BMR decrease
- aging
- prolonged fasting
- sleep
RDA
Recommended Dietary Allowance
Role of Vitamins
Needed for metabolism of carbohydrates, proteins and fats.
Water-soluble Vitamins
Vitamin C: collagen formation,enhances iron absorption
Vitamin B Complex: coenzyme helps glucose (B6, B12)
Riboflavin: carb, protein, fat metabolism
Niacin: carb, protein, fat metabolism
Fat-soluble Vitamins
A, D, E, K!
A: visual acuity
D: calcium absorption
E: antioxidant
K: help clotting
CARBOHYDRATES
- sugar and starches
- most abundant and least expensive
- 90% of carb intake is ingested
- turned into GLUCOSE to provide energy transported through blood
- RDA intake 50-60 % of total cal
PROTEINS
- required for formation of all body structures
- labeled “complete” or “incomplete” based on amino acid composition. Ex: animal proteins are complete, plants are incomplete. (Exceptions: soy and quinoa = complete proteins)
- RDA intake 10-20% total cal
KETOSIS
Is a metabolism of fats, it occurs when the liver is low in glycogen (stored glucose). In inappropriate intake of glucose, the body will utilize fats to provide energy.
As a result, ketones are often found in urine.
Often associated to acidosis.
FATS (LIPIDS)
- 95% of lipids in diet are triglycerides = VDLs
- digested in small intestine
- RDA should be < 30% cal intake
Excess Vitamin Consumption
Can result in kidney dysfunction
Importance of Folate vitamin in pregnant women?
Help proper neurological development in fetus
Factors affecting NUTRITION in adults:
- decline BMR
- decrease in calorie intake
- lactating women: need increase in nutrients to support growth and maintain maternal homeostasis
What are Anthropometric measurements used for?
To determine body measurements (body protein and fat storage)
Dysphagia =
Difficulty swallowing or inability to swallow –> will increase risk of aspiration
Dysphagia can result from:
- poor health
- cancer
- neurological disease
- Parkinson’s
- Dementia
Signs and Symptoms of poor nutritional status
- Fatigue,
- Overweight/underweight,
- Dark circles under eyes,
- Swollen lips
- Beefy red tongue
- Cavities
- Enlargement of thyroid gland
- Skin is dry, flaky, petechiae, bruises…
- Poor posture
- Wasted muscle
- Swollen abdomen
- CNS: loss of ankle and knee reflexes, mental confusion, depression,sensory loss, motor weakness
- Cardio: tachycardia, abnormal BP, cardiac enlargement
- GI: enlarged liver or spleen
Diet Orders
1) Clear liquids
Anything that is clear at room T *
Ex: jello, Popsicles, tea, ginger ale, bouillon, fruit juice (w/ no pulp)
NO milk or juices w/ pulp
Diet Orders
2)Full liquids
Things you can poor at room T *
Ex: milkshakes, soups, custards (NO jam, fruit, or solid foods)
Diet Orders
3) Soft diet
No fats, low in fiber, no salt or seasoning
Ex: all full liquids, cooked vegetables, canned fruit, banana, avocado, potatoes, rice, lean meats and fish, eggs, yogurt.
Diet Orders
4) Puréed
Thickness and viscosity based on pt’s tolerance
Ex: mashed potatoes, puréed vegetables, shakes (everything that can be blended)
–> good for stroke patients
Diet Orders
5) Mechanical soft
Softer foods that can be cut up. Good for pts w/ chewing ability.
Ex: mashed, soft ripened fruit such as bananas, peaches, pears, cooked mashed soft veggies
Diet Orders
6) NPO
Nothing By Mouth
Lab Data
Hemoglobin:
12-18 g/dL
Lab data
Hematocrit:
40-50%
High levels = Dehydration
Lab data
Albumin:
3.5-5.5 g/dL
Decreased level –> malnutrition (prolonged protein depletion), malabsorption
Lab data
Prealbumin:
23-43 mg/dL
- If levels fall below 15 mg/dL = severe malnourishment, unsafe