In a consult agreement, which actions can a pharmacist take?

In the context of a consult agreement, a pharmacist can indeed change the duration of treatment of current therapy, assuming that the agreement specifically allows for such an action and that it falls within the pharmacist's scope of practice as defined by state law and the consult agreement itself. This power allows pharmacists to tailor patient care more effectively based on the patient's response to therapy and other relevant clinical factors.

The other options typically involve actions that are beyond the scope of a pharmacist's authority under most consult agreements. For instance, diagnosing new diseases generally requires a medical diagnosis from a licensed physician, which is outside the pharmacist's purview. Changing the frequency of administration, while sometimes permissible under specific circumstances, would also usually require careful oversight and specific language within the consult agreement that delineates such duties.

In summary, the correct answer emphasizes the pharmacist's ability to modify the treatment duration based on clinical judgment within the framework of the consult agreement, while other options may not align with the lawful responsibilities and limitations set for pharmacists.