👩🏾🎓- Respirtory, MH & Hepatic Test Flashcards
ABG normal values
Ph, PaCO2, PaO2, HCO3
Ph 〰️ 7.35-7.45
PaCO2 〰️ 35-45
PaO2 〰️ 80-100
HCO3 〰️ 22-26
BMI ranges
Underweight, ideal, overweight, obese (class 1&2), morbid
Underweight < 18.5
Ideal body weight 18.5 - 24.9
Overweight 25 - 29.9
Obese > 30
Class 1: 30-34.9
Class 2: 35-39.9
Morbid < 40 or 100lb over ideal body weight
Leptin
Hormone produced by fat cells
- Communicates to the hypothalamus satiety (the feeling of being full)
- Regulates energy expenditure or balance
⬆️ leptin vs ⬇️ leptin
⬆️ - increases energy expenditure decreased appetite = weight loss
⬇️ - decreased energy expenditure increased appetite = weight gain
Food-drug interactions
- Tyramine foods (cheese, aged,picked meat) + MAOIs (antidepressants) = ⬆️BP
- No milk with tetracycline
- Grapefruit increases blood level of medication & decreases elimination time
- Take antibiotics with food
- Licorice = ❤️ issues, ⬇️ BP, arrhythmias
Orlistat , lorcaserin , phentermine/topiramate
Orlistat- inhibits pancreatic lipase, thereby reducing dietary fat absorption
SE: loose stools, abd cramps, nausea
Lorcaserin- regulates appetite and increase the feeling of fullness after eating, so less food is eaten (for seizures and migraines)
Phentermine/topiramate- extended release is a combination medication
Roux-en-Y
Gastric bypass
A combination procedure that involves the creation of a restrictive 30-mL pouch and bypass of a portion of the small intestine
Can cause malabsorption
List the 3 short term life-threatening complications of bariatric surgery
Pulmonary embolism
Infection
Anastomosis leak**
Long term complications and side effects of bariatric surgery
- band slippage, obstruction, hernia
- esophageal erosion, ulcers, acid reflux
- vitamin deficiency, osteoporosis, anemia and dumping syndrome
Dumping syndrome
Manifestations
Occurs when stomach contents are rapidly “dumped” into the small intestine
Manifestations- n/v/d, abdominal pain, cramps, dizziness, bloating, belching, fatigue, heart palpitations, tachycardia
Normal range of HGB
12-18 g/dL
Normal range of HCT
38-49%
Normal range of albumin vs prealbumin
Albumin: 3.5-5.0 g/dL
Prealbumin: 19.5-35.8 mg/dL
Eteral feeding vs TPN
Enteral - used for those not getting adequate nutrition, but have fully functioning GI tract
TPN - used for those not getting adequate nutrition AND who do not have the full use of their GI tract
What to know about TPN
- monitor fluid, electrolyte and glucose levels closely
- ⬆️ risk of infection related to ⬆️ sugar intake
- risk of hyperglycemia, hypoglycemia, air embolism hypervolemia
Kubler-ross grief cycle
Stage 1 denial Stage 2 anger Stage 3 depression Stage 4 bargaining Stage 5 acceptance
Domain 7: Care of the imminently dying
-symptom management (pain, general discomfort, respiratory distress, delirium)
-stages of dying:
Early (accept its near)
Middle
Late (hours or days)
S&S of approaching death
Coolness Sleeping Disorientation Restlessness Incontinence Decrease in appetite & fluid intake Urine decrease Breathing-pattern change Respiratory congestion Decreased socialization
List the 8 domains of palliative care
- Structure and process of care (family education)
- Physical aspect of care
- Psychological & psychiatric aspects of care
- Social aspects of care
- Spiritual, religious and existential aspects of care
- Cultural aspects of care
- Care of the imminently dying
- Ethical and legal aspects of care
Passive vs active euthanasia
Passive- not directly causing death
“Allowing natural death”
Withdrawing or withholding life-sustaining therapy
Active- actively causing death
Clinical presentation of pulmonary embolism
Rapid onset:
Chest pain Dyspnea Tachypnea Apprehension Tachycardia Petechiae on chest Refractory hypoxemia Anxiety/restlessness
Refractory hypoxemia
Unresponsive to increasing oxygen
Treatment of pulmonary embolism
- oxygen
- anticoagulant (lovenox, heparin)
- thrombolytics
- embolectomy
- IVC filter
What does d dimer test for
Used to rule out the presence of an inappropriate blood clot (dvt, pe)
Acute respiratory failure
A change in respiratory gas exchange such that normal cellular function is jeopardized
PaO2 < 60 or PaCO2 > 50
Acute respiratory failure
Early, late findings
Early- dyspnea, restlessness, anxiety, fatigue, hypertension, diaphoresis, tachycardia, tachypnea
Late- confusion, somnolence, pink skin coloration, hypercapnia/hypoxia, lethargy, central cyanosis
When to intervene in ARF
Increased O2 need, increased HR, change in mental status, change in lung sounds, increased dyspnea, call MRT/RRT,
Look at trends over last 24hrs/past couple days, activity level
⬇️ urine output= ⬇️ cardiac output
Acute respiratory distress syndrome
Causes
Widespread inflammation in the lungs/stiffening of the lungs and loss of compliance (elasticity)
Causes- sepsis, fluid overload, shock, trauma, neurological injuries, burns, DIC, aspiration
What is the number one cause of ARDS
Sepsis
P/F ratio
Formula, ranges
Formula- PaO2/FiO2
Normal > 500
Respiratory failure < 300
ARDS < 200
Low survival rate < 100
Clinical manifestations of ARDS
- Tachypnea
- Decreased breath sounds
- Dyspnea
- Refractory hypoxemia
- Decreased pulmonary compliance (due to alveoli damage)
- pulmonary infiltrates (increased alveolar fluid, pulmonary edema)
TRAILI
Treatment, cause
Transfusion related acute lung injury
Cause- giving expired packed RBC that causes ARDS, RBC good for 40 days
Treatment- fluid, analgesic, O2
Treatment of ARDS
- mechanical ventilation (PEEP, sedation/analgesia)
- prevention of nosocomial infection
- maintain nutritional status and fluid balance (⬆️ protein, calories, fluid)
- glucocorticoids May be used to decrease inflammatory response*
- prone position in severe situations
BiPAP
Patient receives two different levels of airway pressure
Higher pressure during inhalation assists with opening of the alveoli
Lower pressure during exhalation keeps the alveoli from collapsing during exhalation
CPAP
One continuous pressure throughout the respiratory cycle to help keep the alveoli open through inspiration and expiration
What is prone position
Lies flat with chest down and the back up