Question

question 2 (mandatory) (2 points)
a physician writes a prescription for proair hfa (albuterol sulfate) for chronic obstructive pulmonary disease (copd). the instructions state: inhale 1 to 2 mdi puffs (90 - 180mcg) q 4 - 6 hours.
how many mcg are needed to fill this rx per day?

Explanation:

Step1: Determine the minimum number of doses per day

The time - interval between doses is 4 - 6 hours. To find the minimum number of doses in a 24 - hour day, divide 24 by the minimum time - interval. So, $\frac{24}{4}=6$ doses per day.

Step2: Determine the minimum amount of medication per dose

The minimum amount of medication per dose is 90 mcg.

Step3: Calculate the minimum total amount per day

Multiply the minimum number of doses per day by the minimum amount per dose. So, $6\times90 = 540$ mcg.

Step4: Determine the maximum number of doses per day

Divide 24 by the maximum time - interval to find the maximum number of doses in a 24 - hour day. $\frac{24}{6}=4$ doses per day.

Step5: Determine the maximum amount of medication per dose

The maximum amount of medication per dose is 180 mcg.

Step6: Calculate the maximum total amount per day

Multiply the maximum number of doses per day by the maximum amount per dose. So, $4\times180=720$ mcg.

The amount of medication needed per day ranges from 540 mcg to 720 mcg.

Answer:

The range is 540 - 720 mcg.