GI Flashcards
What is parenteral nutrition?
Administration of nutrients by route other than GI tract (i.e., bloodstream)
Storage and labelling of parenteral nutrition includes?
Must be refrigerated until 30 minutes before use; made daily, only good for 24 hours
Must be labeled with nutrient content, all additives, time mixed, and date and time of expiration
What are common indicators for PN?
- Chronic severe diarrhea and vomiting
- Complicated surgery or trauma
- GI obstruction
- GI tract anomalies and fistulae
- Intractable diarrhea
- Severe anorexia nervosa
- Severe malabsorption
- Short bowel syndrome - Occurs when a patient has a problematic portion of bowel cut out, and problems reoccur a few years later. Pt has more cut out, and it again occurs later on. Repeating.
What are common metabolic problems associated with PN?
- Altered renal function
- Essential fatty acid deficiency
- Hyperglycemia, hypoglycemia - Check blood glucose via finger blood stick q4-6hrs
- Hyperlipidemia
- Liver dysfunction
- Refeeding syndrome - Electrolyte imbalances, Fluid imbalances which lead to edema
What is nursing management of PN?
Vital signs q4-8hrs
Daily weights
Blood glucose
- Sliding scale
- Check every 4-6 hrs
Electrolytes
BUN
CBC
Liver enzymes
Dressing change
- Per policy
- Site observation is key!!
Refeeding syndrome
Infusion pump must be used
- Need to periodically check volume infused
- Check more often than regular IV
Watch for infection and sepsis
What are S/S of infection and sepsis with PN? and interventions if suspected?
Local manifestations - Erythema, Tenderness, Exudate at catheter insertion site
Systemic - Fever, chills, Nausea/vomiting, Malaise
If suspected:
- Blood and catheter cultures if infection suspected
- X-ray: To check changes in pulmonary status
- After PN therapy, daily dressing changes to infusion site until it fully heals (After catheter is removed)
BMI categories
< 18.5 Underweight 18.5-24.9 Normal weight 25.0-29.9 Overweight >29.9 Obese >40 Extreme Obesity
What are ways to assess obesity?
BMI
Waist circumference
Waist to hip ratio
body shape
Waist circumference measurements:
increased health risk if >40 in men and > 35 in women
Larger waist = increased heart disease
Waist to hip ratio
> 0.8 greater risk for health complications
Apple body shape is at risk for:
Heart disease
DM
Hypertension
Pear body shape is at risk for:
osteoporosis
varicose veins
All opportunities for patient education on obesity should stress (2), and should include (6).
healthy eating and exercise
- Meal planning
- Adequate fruits and vegetables to prevent constipation, meets vitamin A and C requirements
- Lean meat, fish, and eggs for protein and B-complex vitamins (B complex vitamins can be insufficient if diet has not carbs)
- Exercise
- Behavior modification
- Support groups
Bariatric surgery is used to treat ___.
extreme obesity. It is currently the only treatment found to have a successful and lasting impact for sustained weight loss
Criteria guidelines include:
- BMI ≥40 kg/m2 OR
- 35 with one or more significant co-morbidities (such as hypertension, DMII, HF, sleep apnea)
Not always covered by insurance; Screened for psychologic issues associated with poor outcomes (depression, binge eating disorder, drug/alcohol abuse)
The three broad categories of bariatric surgeries are:
restrictive (reduces size of stomach or amount allowed to enter the stomach),
malabsorptive (small intestine is shortened),
and a combo
Bariatric surgeries include:
Restrictive:
- Gastric banding
- Sleeve Gastrectomy
- Plication
- Intragastric Balloon
Combo:
5. Roux-en-Y Gastric Bypass (RYGB)