The publication USP-NF is a standard reference maintained in the United States by which organization?

• A. United States Pharmacopeia
• B. FDA
• C. World Health Organization
• D. CDC

Answer: (A)

The main idea is who is responsible for maintaining the official reference that defines drug quality standards in the United States. The publication USP-NF is maintained by United States Pharmacopeia, the organization that develops and publishes the pharmacopeial standards used to ensure the quality, potency, and purity of medicines. While the FDA regulates and enforces compliance with these standards, it does not maintain the publication itself. The World Health Organization provides international pharmacopoeial guidance, not the U.S. maintenance, and the CDC focuses on disease control and public health rather than maintaining pharmacopeial standards.