Final answer:
USP Chapters 800, 795, and 797 apply when hazardous drugs are compounded, focusing on standards for handling, storage, and compounding procedures.
Step-by-step explanation:
When hazardous drugs are compounded, various compendial standards apply as outlined by the United States Pharmacopeia (USP). Specifically, USP Chapter 800 outlines the practice and quality standards for handling hazardous drugs to promote patient safety, worker safety, and environmental protection. In addition to USP Chapter 800, USP Chapter 795 pertains to the compounding of nonsterile preparations, and USP 797 covers the compounding of sterile preparations. These chapters include guidelines on the storage, handling, and compounding of hazardous drugs to minimize exposure and ensure safety.