How many puffs of salbutamol aerosol inhaler are used and for what condition is it used?

• A. 1-2 puffs inhaled; Used for asthma.
• B. 4 puffs inhaled; Used for COPD.
• C. 2 sprays; Used for allergies.
• D. 0.5 mg; Used for anaphylaxis.

Answer: (A)

Salbutamol inhalers are fast-acting bronchodilators used to relieve bronchospasm by relaxing the smooth muscles in the airways, quickly opening them up. In the context of acute asthma, the aim is rapid relief of symptoms, so the typical initial dose is one to two puffs taken right away. You can repeat the puffs if symptoms persist, but the key idea is providing prompt relief during an asthma flare.

The other options don’t fit this use. Four puffs are more than the commonly cited initial dose for a quick relief in an emergency and aren’t the standard teaching in this exam context. Using two sprays for allergies isn’t correct because salbutamol inhalers target bronchoconstriction in asthma or bronchospasm, not allergic reactions of that type. A dose of 0.5 mg is a measurement associated with adrenaline for anaphylaxis, not salbutamol inhaler dosing.

So, one to two puffs inhaled for asthma best matches how salbutamol is used for rapid relief of bronchospasm in the clinical setting described.