Question

question 2: for the prescription for ciprofloxacin otic solution, instruction is to instill 5 drops in each ear 3 times daily for 7 days. if there are 10 ml in one bottle of ciprofloxacin otic solution, how many bottles should be dispensed? (bottles are dispensed unopened and not as partial fills.) a. 1 bottle b. 2 bottles c. 3 bottles d. 4 bottles

Explanation:

Step1: Calculate total number of drops

Number of drops per day for one ear is $5$ drops, and for two ears is $5\times2 = 10$ drops. With 3 applications per day, the number of drops per day is $10\times3=30$ drops. For 7 days, the total number of drops is $30\times7 = 210$ drops.

Step2: Assume number of drops per mL

Typically, there are about 20 drops per mL.

Step3: Calculate total volume in mL

If there are 210 drops and 20 drops per mL, the total volume needed is $\frac{210}{20}=10.5$ mL.

Step4: Determine number of bottles

Since each bottle has 10 mL and bottles are dispensed unopened, we need $\lceil\frac{10.5}{10}
ceil = 2$ bottles.

Answer:

b. 2 bottles