Exam 2 Flashcards
(124 cards)
factors that affect nutrition
lifespan, ethnicity and culture, personal preferences, religion, economics, medications, health, alcohol, and sex
malnutrition
deficit excess or imbalance in essential components of balanced diet
under-nutrition
poor nourishment due to inadequate diet or disease
over nutrition
ingest more food than required
causes of protein calorie malnutrition (PCM)
socioeconomic status, patients with physical illness, incomplete diets, eating disorders, and food-drug interactions
clinical manifestations of PCM
muscles wasted and flabby, edema, dry flaky skin, lethargy, memory problems, intolerance to cold, delayed wound healing, more susceptible to infection, brittle nails
diagnosis of PCM
decreased serum albumin pre albumin transferrin hemoglobin and hematocrit creatinine and BUN and serum vitamin levels. Increased liver enzymes
acute interventions for PCM
increased stress= increased need for proteins and calories, elevated temperature increases metabolic rate, daily weights and accurate recording of I&O
under nourished patients need
meal supplements, small meals, or appetite stimulants (megestrol acetate or dronbinol)
tube feeding
enteral nutrition, inserted into stomach duodenum or jejunum, can supply nutrition alone or along with oral and parental nutrition
tube feeding is _____, ______, and ______ than parental
safer, more physiologically efficient, and less expensive
contraindications for enteral nutrition
GI obstruction, prolonged ileus, severe diarrhea or vomiting, fistula
delivery options for tube feeding
continuous by infusion pump, intermittent by gravity, intermittent bolus by syringe, cyclic feedings by infusion pump
gastrostomy and jejunostomy tube feeding
may be used in those needing tube feed for extended period, can be put in surgically radiologically or endoscopically, can begin feeding 24-48 hrs after placement regardless of flatus
Percutaneous endoscopic gastrostomy PEG
radiologically placed gastrostomy, using endoscopy tube is inserted through the esophagus into the stomach and then pulled through the stab wound made in the abdominal wall
for a pt with a tube feed the nurse should
weigh 3 times a week, monitor I&O, initial glucose checks (TF are high sugar/carb), monitor bowel sounds, slow feed if diarrhea, keep open formula refrigerated, give formula at room temp.
gastrostomy and jejunostomy tube feeding problems
skin irritation and pulling tube out
Parenteral nutrition
IV administration, used when GI tract cannot be used for digestion absorption or ingestion (normally when GI is dysfunctional or trauma/ surgery), can be either central (long term) or peripheral (short term)
Central parenteral nutrition
through a catheter whose tip lies in the superior vena cava, subclavian or jugular vein, PICCs, long term
peripheral parenteral nutrition
can be a peripherally inserted catheter or vascular access device, short term, used when protein and caloric requirements not high or central is too high risk
complications of parenteral nutrition
infection, fluid overload, electrolyte imbalance- hyperglycemia (monitor glucose q4-6 hrs) or hypoglycemia (decreased infusion when discontinuing)
parenteral nutrition nursing implications
VS q 4-8 hrs, daily weight, electrolytes and CBC 3 times a week until stable then weekly, observe dressing and site, must use infusion pump (check volume)
catheter related infections local manifestations
erythema, tenderness, exudate at catheter insertion site
catheter related infections systemic manifestations
fever, chills, N/V, malaise