Final answer:
The DEA requires that pharmacists keep records when dispensing drugs and that drugs be disposed of in the presence of a witness. These measures are part of the regulatory efforts to ensure the proper use and disposal of controlled substances.
Step-by-step explanation:
The Drug Enforcement Administration (DEA) has several regulations that medical professionals must adhere to. Physicians are required to register with the DEA every two years to be able to prescribe controlled substances.
Moreover, pharmacists, who play a critical role in healthcare by dispensing drugs prescribed by doctors, are tasked with keeping detailed records when drugs are dispensed to ensure the proper use of medications and to prevent abuse or diversion of controlled substances.
Additionally, when controlled substances are to be disposed of, the DEA mandates that it be done in the presence of a witness. This is to ensure that drugs are not improperly handled or misused. Thus, the correct answer to the student's question would be: The DEA requires that records be kept when drugs are dispensed AND that drugs be disposed of in the presence of a witness.