Massachusetts Pharmacy Technician License Practice Test

What is the dosage instruction for 15 mL PO Q4 PRN?

1. 15 mL taken twice daily

2. 15 mL taken orally every four hours as needed

3. 15 mL taken once daily

4. 15 mL taken every hour

The correct answer is: 15 mL taken orally every four hours as needed

The correct dosage instruction, which indicates taking 15 mL orally every four hours as needed, is clear and concise. The abbreviation "PO" stands for "per os," meaning "by mouth," indicating that the medication should be taken orally. The "Q4" means that the dosage should be taken every four hours, while "PRN" signifies that the medication is to be taken as needed, rather than on a fixed schedule. This instruction allows for flexibility based on the patient's symptoms or conditions that require medication, while also providing a specific timeframe for when the medication may be repeated. Understanding the components of the instruction is crucial for correct medication administration and ensuring effective patient management.