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- Focused Physical Exam
- Tachypnea and Hypoxemia
- Able to speak in complete sentences
- Accessory muscle use/retractions
- Moving air or quiet on auscultation
- Basic Treatment Algorithm
- Albuterol Inhaler
- Albuterol/Ipratropium Nebulized (Duoneb)
- Steroids
- IV Magnesium
- Non Invasive Ventilation (CPAP or BiPAP)
- Decreases Work of Breathing
- Epinepherine
- Less Common Treatments
- Benzodiazepines
- Ketamine
- Heliox
- Intubation (Last resort)
- Use a large ETT (8.0)
- Increase the Expiratory Time
- “Permissive Hypercapnea”
- Appropriate ventilator management of asthma frequently results in mild hypercapnia and respiratory acidosis. IT’S OK
- Air Trapping
- Results in decreased preload, obstructive shock and pneumothorax
- Suspect with high airway pressures and when waveform doesn’t return to zero (see media)
- Treat by briefly unhooking ventilator and gently pressing on the patient’s chest to get out the trapped air
- Ventilator Settings
- Decrease the respiratory rate (ex 10)
- Increase the tidal volume (although some hypercapnia is permitted)
- Increase I:E ratio (1:4 or greater)