What medications are associated with specific-use limitations at designated credentialing levels?

The correct answer identifies that medications marked with an asterisk (*) have specific-use limitations tied to designated credentialing levels. This distinction is crucial because it acknowledges the need for careful oversight and appropriate training when administering certain medications.

Medications with an asterisk typically indicate a higher level of risk or specialized usage, which may require additional training or certification for personnel administering them. This ensures that only those who have the necessary expertise and knowledge can manage such medications safely and effectively.

Other choices lack the specific criteria that highlight the importance of credentialing levels. For instance, saying "all medications" would imply no distinction among different drugs, while suggesting "only narcotics" narrows the scope to one category, ignoring other medications that may also require special handling. The selection of "none" dismisses any need for credentialing, which contradicts safe practice standards in patient care.