Final answer:
A Registered Nurse Practitioner (RNP) needs specific authority to prescribe CII opioids, such as oxycodone and morphine, which often includes having a collaborative agreement with a physician and obtaining a DEA number in compliance with state laws and DEA requirements.
Step-by-step explanation:
To prescribe CII opioids, such as oxycodone, fentanyl, morphine, and methadone, a Registered Nurse Practitioner (RNP) requires specific authority which may include having a collaborative agreement with a physician, holding an additional certification, or complying with state-specific regulations. In many cases, this authority is granted through obtaining a Drug Enforcement Administration (DEA) number after meeting the requirements set by the DEA for prescribing controlled substances. It's important for RNPs to be familiar with their state's laws regarding the prescribing of opioids, as they can vary greatly and determine their ability to prescribe these potent pain relievers.