CVS Pharmacy Technician Certification Practice Test

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If a prescription calls for 180ml of guaifenesin, how many ounces will be dispensed?

3 oz
6 oz
9 oz
12 oz

The correct answer is: 6 oz

To convert milliliters to ounces, it's essential to use the conversion factor that 1 ounce is approximately equal to 29.57 milliliters. To find out how many ounces are in 180 milliliters, you can use the following calculation: 180 ml ÷ 29.57 ml/oz ≈ 6.08 oz. Rounding this to the nearest whole number, you would typically consider it as 6 ounces. Therefore, since 6.08 oz is closer to 6 oz than any other whole number, the correct conclusion is that 180 ml of guaifenesin is best represented as approximately 6 ounces. This understanding of metric to imperial conversions is crucial in pharmacy practice, ensuring that patients receive the correct volume of medication for their needs.