Final answer:
The correct administration of medications via metered-dose inhaler is salmeterol first and then beclomethasone, as the bronchodilation from salmeterol allows better distribution of beclomethasone.
Step-by-step explanation:
When administering medications via metered-dose inhaler, the correct procedure is important to maximize the effectiveness of the drugs. In this case, the medications are salmeterol (Serevent Diskus), a long-acting beta-agonist, and beclomethasone dipropionate (Qvar), an inhaled corticosteroid. The nurse should administer these medications by giving the salmeterol first, followed by the beclomethasone. This is because the salmeterol will cause bronchodilation and open the airways, which allows for the beclomethasone to have better penetration and distribution within the lungs.
The correct answer to the procedure of how to administer these medications is: 2) Salmeterol first and then the beclomethasone.