Which of the following are first-line treatments for asthma exacerbation
Which of the following are first-line treatments for asthma exacerbation? (Select all that apply)
A. Inhaled short-acting beta-agonists (SABAs)
B. Systemic corticosteroids
C. Oxygen therapy
D. Long-acting beta-agonists (LABAs) alone
Answer: A, B, C
Explanation: SABAs, steroids, and oxygen are first-line for asthma flares; LABAs are never used alone for exacerbations.

