Final answer:
The LPN would expect the RN to discard the vial and obtain a new one to ensure the quality and efficacy of the medication.
Step-by-step explanation:
The LPN would expect the RN to c. Discard the vial and obtain a new one. In this scenario, the presence of small crystals in the vial indicates that the mannitol has crystallized and may no longer be safe or effective for administration to the client. It is important to obtain a new vial to ensure the quality and efficacy of the medication.