TPN concepts Flashcards Preview

Undeleted > TPN concepts > Flashcards

Flashcards in TPN concepts Deck (17):
1

enteral nutrition

GI tract
- oral (swallow, tube feeding)
- if unable to swallow, tube into stomach or small intestine

2

parenteral nutrition

- intravenous (large veins, eg, subclavian vein)
- total parenteral nutrition (TPN)

3

TPN is...

total body nutrition, duh
- dextrose
- lipids
- amino acids
- electrolytes
- vitamins/minerals
- trace elements
- medications

4

total parenteral nutrition: how long & what is it

- short or long term
- significant nutritional support

5

peripheral parenteral nutrition: how long & what is it

- short term use only
- partial nutritional support

6

MUST have before TPNing it up

- central venous catheter
- dedicated infusion port
- radiographic confirmation of placement

7

TPN risks

- DVT
- infection
- cirrhosis
- pancreatitis, cholesystitis
- GI atrophy
- translocation of bacteria

8

TPN initiation (how & why)

gradual, directed by TPN team
- prevent hyperglycemia!

9

TPN discontinuation (how & why)

gradual, prevent hypoglycemia
- sudden? initiate dextrose infusion!!

10

enteral feeding routes

- nasogastric tube

long-term:
- gastronomy tube
- jejunostomy tube, nasoduodenal, nasojejunal

11

bolus feeding

250 - 400 mL solution rapidly administered through syringe or funnel into tube
- 4 to 6 times daily
- 10 minutes each feeding
- may not be tolerated (n/v/d, aspiration, abdominal cramp)
- usually for ambulatory

12

intermittent enteral

administered every 3 to 6 hours over 30 to 60 minutes by gravity drip or pump infusion
- 300 to 400 mL solution given
- feeding bag used

13

continuous feedings

- for critically ill
- for feedings into small intestine
- infusion pump (Kangaroo); slow rate over 24 hours
- 50 to 125 mL infused per hour

14

cyclic method

continuous feeding infused over 8 to 16 hours daily
- for patients who are restless, greater risk of aspiration
- nighttime schedule = freedom for ambulatory patients

15

major complication of enteral nutrition

aspiration pneumonitis
- may occur if patient fed while lying down or unconscious
- high fowler's, check for gastric residual by aspirating

16

major problem of enteral feeding

diarrhea
- could be caused by rapid admin, high caloric solutions, malnutrition, GI bacteria, drugs (Mg!)
- many oral liquid drugs are hyperosmolar (pull water into GI tract)

17

average percentage of dextrose in TPN

25%

Decks in Undeleted Class (79):