Disease Management and Emergency Response
Core concepts
This area integrates pathophysiology with action across common respiratory conditions: asthma, COPD, pneumonia, pulmonary embolism, heart failure, and acute respiratory distress syndrome, plus emergencies such as tension pneumothorax, airway obstruction, and respiratory failure. For each, know the hallmark findings, the first-line therapy, and the red flags that demand immediate escalation. Understand oxygen therapy goals by condition (for example, conservative targets in COPD), bronchodilator use, and when noninvasive or invasive ventilation is indicated. Recognize the difference between hypoxemic and hypercapnic respiratory failure.
Traps
The biggest trap is choosing a treatment that addresses a symptom while missing the emergency. Stridor after extubation is an airway emergency, not a reason to increase oxygen and wait. Another trap is applying a standard oxygen target to a patient who needs a different one. Items also test whether you recognize when a patient is deteriorating despite therapy, where escalation, not more of the same, is correct.
Rule of thumb
Ask: is this a stable management question or an emergency question? Emergencies get airway, breathing, and circulation first, then definitive care. Worked example: a patient becomes acutely dyspneic with absent breath sounds on one side and tracheal deviation after a line placement. That is a tension pneumothorax; the correct response is immediate decompression, not a chest x-ray first.