A nurse is caring for a client who has named a person to serve as his health care proxy. The client talks about this type of advance directives. Which of the following statements by the client indicates a need for clarification?

A. While heparin and warfarin both work as anticoagulants, IV heparin is not typically used to increase the effects of warfarin or decrease the length of hospital stay. Heparin is often administered initially to rapidly achieve therapeutic anticoagulation while waiting for warfarin to reach its full therapeutic effect, but it is not intended to directly enhance the action of warfarin.
B. This statement is accurate and provides a clear explanation to the client. Warfarin, an oral anticoagulant, takes several days to achieve a therapeutic level in the bloodstream and to exert its anticoagulant effect. During this time, IV heparin is continued to prevent clot formation until the therapeutic level of warfarin is reached.
C. While both heparin and warfarin work to prevent blood clots, they do not directly dissolve existing clots. Rather, they prevent the formation of new clots and the growth of existing ones. This explanation does not fully address the client's question regarding why both medications are necessary.
D. Discontinuing IV heparin prematurely without reaching a therapeutic level of warfarin could increase the risk of thrombus formation or embolization. Therefore, discontinuing IV heparin should be done under the guidance of the provider based on the client's INR levels and the target therapeutic range for warfarin.

A. Asking the client if they have talked to their parents about their anxiety may not be appropriate, as it assumes the client is comfortable discussing their concerns with their parents. It's important to establish rapport and trust with the client before delving into personal matters such as family dynamics.
B. Asking "Why do you think you are so anxious?" may come across as confrontational and put the client on the defensive. It's important to approach the client's concerns with empathy and understanding rather than seeking an explanation for their anxiety.
C. This response acknowledges the client's feelings and validates their experience, showing empathy and understanding. It opens the door for further exploration of the client's concerns and allows the nurse to provide support and assistance.
D. While assessing the duration of symptoms is important, asking "How long has this been going on?" as an initial response may feel dismissive to the client's current distress. Starting with an empathetic acknowledgment of the client's experience can help build rapport and trust before delving into more specific questions about the duration and severity of symptoms.