Final answer:
The best course of action for the nurse manager is to place a hard copy of announcements and unit policies in each staff member's mailbox to ensure all staff receive and can refer to the information, thereby improving compliance.
Step-by-step explanation:
When discovering that policies such as the disposal of expired stock medicine and staff dress code adherence are not being followed, a nurse manager should consider communication and enforcement strategies that ensure compliance. Given the scenario, it appears that emails alone are insufficient for informing staff. Therefore, the nurse manager's action plan should ensure clearer communication and verification that the information has been received and understood.
The most appropriate action to take would be option d: Place a hard copy of announcements and unit policies in each staff member's mailbox. This ensures that each staff member has a physical reminder of the policies and can refer back to it as needed. It also circumvents any potential issues with email delivery or staff not regularly checking their electronic correspondence. Follow-up discussions and meetings can reinforce the importance of adherence to policies.