Which of the following diagnostic studies should be performed on all patients with acute exacerbations of asthma that present for evaluation?
- chest x-ray
- white blood cell count
- serum theophylline level
- peak expiratory flow rate
- arterial blood gas analysis
Answer: D
Peak expiratory flow rate
Peak flows should be done in ALL asthma patients with an acute exacerbation. It gives you a baseline and allows you to decide how effective nebulizer treatments are. CXR is not necessary unless you suspect the patient has pneumonia. ABG's may be indicated in a severe asthma attack, but not typically.
Know Your Content Blueprint
Asthma is covered as part of the PANCE Pulmonary Blueprint
Review Topic: Asthma (ReelDx)