How many 5 mL bottles of prednisolone should be dispensed for 2 drops in each eye, four times daily for 14 days?

To determine the correct quantity of 5 mL bottles of prednisolone needed for 2 drops in each eye, four times daily for 14 days, we first need to calculate the total number of drops required.

A standard drop from an eye dropper is typically about 0.05 mL. Since the prescription is for 2 drops in each eye, this amounts to:

• 2 drops/eye x 2 eyes = 4 drops per application.

With the patient instructed to use the drops four times a day, we find the total daily requirement:

• 4 drops/application x 4 applications/day = 16 drops/day.

Next, we calculate the total drops needed for the entire treatment duration of 14 days:

• 16 drops/day x 14 days = 224 drops total.

Now, to convert drops into milliliters, we use the approximate volume of a drop:

• Total mL needed = 224 drops x 0.05 mL/drop = 11.2 mL.

Since each bottle holds 5 mL, we can now determine how many bottles are needed:

• 11.2 mL ÷ 5 mL/bottle = 2.24 bottles.

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