A nurse is caring for a client who has been receiving warfarin and has an INR of 4.5. The client plans to leave the facility and refuses to wait until the provider can come and provide information about the result. Which action should the nurse take first?

Ask the facility security officer to stand by the door to the client's room to prevent the client from leaving.

Contact the facility administrator and explain the situation.

Explain to the client the risks of leaving the facility before speaking with the provider.

Tell the client that an "against medical advice" form (AMA) must be completed before leaving the facility.