What are the main steps in evaluating a patient with stridor?
a) Assess airway, breathing, and circulation; Evaluate for foreign body aspiration; Consider epiglottitis or croup; Perform direct laryngoscopy or bronchoscopy if indicated
b) Administer oxygen; Start antibiotics; Order chest X-ray; Initiate nebulized racemic epinephrine
c) Perform abdominal ultrasound; Consider thoracic CT scan; Administer IV steroids; Prepare for intubation
d) Apply oxygen mask; Monitor vital signs; Administer antihistamines; Prepare for surgical airway intervention