Which inhaler does the patient use?

Inhalers are often categorized based on their purpose and the active ingredients they contain. In this case, albuterol is a short-acting beta-agonist (SABA) that is primarily used for quick relief of acute asthma symptoms or bronchospasm. It works by relaxing the muscles around the airways, allowing for easier breathing.

Because albuterol is typically prescribed for immediate relief during an asthma attack or when symptoms worsen, it is the most fitting choice if the context of the question focuses on managing acute respiratory distress. This contrasts with inhalers that contain fluticasone or budesonide, which are corticosteroids used for long-term control and prevention of asthma or chronic obstructive pulmonary disease (COPD) flare-ups, and salmeterol, which is a long-acting beta-agonist (LABA) used for long-term maintenance therapy rather than acute relief.

Hence, if the patient is using an inhaler specifically for immediate symptom relief, albuterol is the correct choice.