Question

a pharmacy technician is entering a prescription for an inhaler that has 120 metered doses and instructions to take 2 puffs by mouth twice daily. the technician should identify that which of the following is the days supply for this prescription?
15 days
20 days
10 days
30 days

Explanation:

Step1: Calculate daily puffs

Take 2 puffs twice daily, so daily puffs = \(2\times2 = 4\) puffs/day.

Step2: Calculate days' supply

Total doses = 120, days' supply = \(\frac{120}{4}=30\)? Wait, no, wait. Wait, 2 puffs twice daily: 22=4 puffs per day. Wait, 120 divided by 4: 120/4=30? But wait, no, maybe I miscalculated. Wait, no, let's check again. Wait, the options have 30? Wait, no, the options are 15,20,10,30. Wait, wait, maybe I made a mistake. Wait, 2 puffs twice daily: that's 22=4 puffs per day. Total doses 120. So 120/4=30. But wait, maybe the question is different. Wait, no, the inhaler has 120 metered doses. Each dose is a puff? So 2 puffs twice daily: 4 puffs per day. So 120/4=30. But wait, the options include 30. Wait, but maybe I misread. Wait, the options are 15,20,10,30. So 30 is an option. Wait, but let's check again. Wait, 2 puffs by mouth twice daily: so twice daily means two times a day. So 2 puffs 2 times = 4 puffs per day. Total doses 120. So days' supply is 120 / 4 = 30. Wait, but maybe the question is about something else. Wait, no, maybe I made a mistake. Wait, maybe the inhaler's metered doses: each puff is a metered dose. So 120 metered doses, so 120 puffs. Taking 2 puffs twice daily: 4 puffs per day. So 120 / 4 = 30 days. So the answer should be 30 days? But wait, the options have 30 days. Wait, but let me check again. Wait, 2 puffs twice daily: 22=4. 120/4=30. Yes. So the days' supply is 30 days.

Answer:

30 days