Question 74

The Albuterol HFA inhaler provides a 16-day supply when used as directed.

When inhaling 2 puffs every 4 hours, the total number of puffs taken in a day amounts to 12. Given that the inhaler contains 200 inhalations, the supply of the inhaler lasts for approximately 16.67 days, which rounds down to 16 days.

A) 10

This option is incorrect. If 2 puffs are taken every 4 hours, that results in 12 puffs per day. With 200 puffs available in the inhaler, dividing 200 by 12 gives approximately 16.67 days of supply, which does not equate to 10 days.

B) 16

This is the correct answer. In a 24-hour period, 12 puffs are taken (2 puffs every 4 hours). Therefore, when the total inhalations of 200 is divided by the daily usage of 12, the result is approximately 16.67 days, confirming that the inhaler provides a supply for about 16 days.

C) 30

This option is incorrect. If the inhaler were to last 30 days, the number of puffs taken daily would need to be significantly lower. With 200 puffs divided by 30 days, only about 6.67 puffs per day could be taken, which is inconsistent with the prescribed regimen of 12 puffs per day.

D) 90

This option is also incorrect. For the inhaler to last 90 days, the daily puff count would need to be extremely low, approximately 2.22 puffs per day. Since the actual regimen requires 12 puffs daily, this option does not align with the usage guidelines.

Conclusion

The correct answer is 16 days because it accurately reflects the daily usage of the inhaler based on the prescribed dosage of 2 puffs every 4 hours. All other options underestimate or miscalculate the number of puffs taken daily, leading to incorrect conclusions regarding the inhaler's supply duration.