50. According to USP <797>, what is the maximum beyond-use date (BUD) for a low-risk level compounded sterile preparation (CSP) stored at controlled room temperature?
Answer: B
The maximum beyond-use date for a low-risk level compounded sterile preparation stored at controlled room temperature is 48 hours.
Low-risk level compounded sterile preparations (CSPs) have a maximum beyond-use date (BUD) of 48 hours when stored at controlled room temperature, as outlined by USP guidelines.
A) 24 hours
This option is incorrect because the BUD for low-risk level CSPs at controlled room temperature is not as short as 24 hours. The guidelines specify a longer duration, making this choice inadequate.
B) 48 hours
This is the correct answer as it aligns with USP standards. Low-risk level CSPs stored at controlled room temperature are permitted a BUD of up to 48 hours, which ensures sterility and efficacy within this timeframe.
C) 7 days
This option is incorrect because it exceeds the maximum BUD for low-risk CSPs at controlled room temperature. The guidelines specify a significantly shorter time frame, making this choice inconsistent with established protocols.
D) 30 days
This option is also incorrect, as it greatly surpasses the stipulated BUD for low-risk level CSPs. According to USP , 30 days is not an acceptable duration for these preparations stored at controlled room temperature.
Conclusion
The correct answer is definitively 48 hours, as it is directly supported by USP guidelines for low-risk level compounded sterile preparations. All other options fail to meet the established standards, either by being too short or excessively long, thereby highlighting the importance of adhering to the defined BUDs for maintaining sterility and safety in pharmaceutical compounding.