Which scenario would warrant nebulizer use?

• A. Headache
• B. During respiratory distress with bronchospasm
• C. Diarrhea
• D. Rash

Answer: (B)

Nebulizers deliver fast-acting bronchodilators directly into the lungs to relieve bronchospasm. When the airways are constricted during respiratory distress, relaxing the airway smooth muscle with a bronchodilator opens the bronchi, lowers airway resistance, and improves airflow and oxygenation. That makes this scenario the one that warrants nebulizer use. The other options involve conditions like headache, diarrhea, or rash, which do not involve bronchoconstriction and are not treated with inhaled bronchodilators; they require different therapies appropriate to those symptoms.