Quiz 11 - Lung Disease and Anesthetic Concerns Flashcards
What are the classical triad of symptoms for asthma?
- Wheeze
- Cough
- Dyspnea
Preop history - what should you always ask about COPD history?
Smoking history (how long, when did you quit and have you ever smoked) * Dyspnea - exercise tolerance, home O2 requirement, baseline SPO2 on RA
What other preop history would you like to know for COPD?
Productive cough
Wheezing
Admissions to hospital/ER
Prior Surg Hx
Preop studies for COPD
SpO2 on RA ABG CXR CBC (may have elevated Hct) PFT (FEV1 < 2 liters is not good) Electrolytes (may have elevated bicarb)
What FEV1 and FEV1/FVC values would indicate high risk?
FEV1 < 2 Liters
FEV1/FVC < 0.5
What are some signs/symptoms of Chronic Bronchitis?
Cough
Sputum production
Recurrent infections
Blue Bloaters
What are some causes of Chronic Bronchitis?
Smoking and occupational exposure
What are some common characteristics of a “Blue Bloater”?
Short, fat neck Frequent wheeze Relatively young Obese, OSA, Pickwickian syndrome Cyanotic
What are some signs and symptoms of Emphysema?
Progressive dyspnea (SOB)
variable cough
Loss of pulmonary elastic recoil
Pink puffer
What are some common characteristics of a “Pink Puffer”?
thin older minimal cough pink color dyspnea, hyperinflation, distant breath sounds Pursed lip breathing = auto PEEP
What are some causes of emphysema?
smoking
coal miners
alpha-1 antitrypsin deficiency (auto digestion of lung tissue by proteases)
What is asthma?
- Airway HYPERREACTIVITY
- Bronchial wall INFLAMMATION
- Degrees of REVERSIBLE airflow dyspnea
What is the normal inspiration and expiratory ratio?
1:2
What is the inspiration and expiratory ratio for COPD?
1:3
What type of drugs should be avoided during broncho spasms?
-HISTAMINE releasing drugs: Pentothal Morpine Atracurium Mivacurium Neostigmine