Question 43

The maximum beyond-use date (BUD) for a low-risk level compounded sterile preparation (CSP) stored at controlled room temperature is 48 hours.

For a low-risk level compounded sterile preparation (CSP) stored at controlled room temperature, the maximum beyond-use date (BUD) is 48 hours as per USP guidelines.

A) 24 hours

This option is incorrect because USP specifies that the BUD for low-risk level CSPs at controlled room temperature is longer than 24 hours, specifically set at 48 hours.

B) 48 hours

This is the correct answer. USP indicates that low-risk level compounded sterile preparations can be safely stored at controlled room temperature for up to 48 hours before they must be discarded.

C) 7 days

This option is incorrect. While higher-risk levels of CSPs may have longer BUDs, the specific guideline for low-risk level CSPs at controlled room temperature is only 48 hours, making 7 days an excessively long duration.

D) 30 days

This option is also incorrect. A BUD of 30 days exceeds the maximum allowed for low-risk level CSPs stored at controlled room temperature as defined by USP , which is 48 hours.

Conclusion

The correct answer is 48 hours, as this aligns with the guidelines established in USP for low-risk level compounded sterile preparations. All other options either underestimate or overestimate the appropriate beyond-use date, thus failing to meet the regulatory standards for safe pharmaceutical practices.