Question 22

The Albuterol HFA inhaler provides a 16-day supply based on the patient's usage.

If the patient uses 2 puffs every 4 hours, they can take up to 6 doses in a day, which totals 12 puffs daily. Given that the inhaler contains 200 inhalations, dividing 200 by 12 results in approximately 16.67 days of supply, which rounds down to 16 days.

A) 10

Option A is incorrect. If the patient took only 10 days of supply, they would have to be using significantly fewer puffs per day than the maximum allowed, which does not align with their stated usage of 2 puffs every 4 hours.

B) 16

Option B is correct. With a maximum of 12 puffs per day, the total number of days the inhaler lasts can be calculated as 200 inhalations divided by 12 puffs per day, resulting in approximately 16.67 days, which indicates that the inhaler would last for 16 full days before running out.

C) 30

Option C is incorrect. A supply of 30 days would imply that the patient is using significantly fewer puffs, specifically about 6.67 puffs a day, which contradicts their usage pattern of 12 puffs daily.

D) 90

Option D is incorrect. A 90-day supply would suggest an extremely low usage of puffs, equating to around 2.22 puffs per day, which is not feasible given the patient's need for 2 puffs every 4 hours.

Conclusion

The correct answer is 16 days, as it accurately reflects the inhaler's capacity in relation to the patient's maximum usage of 12 puffs per day. All other options fail to account for the actual inhalation frequency, resulting in unrealistic estimates of supply duration.