Final answer:
Using interviewing skills, remaining nonjudgmental, and being assertive when collecting data are important abilities of a nurse to achieve effective therapeutic communication.
Step-by-step explanation:
Effective therapeutic communication requires several important abilities of a nurse. Two of the most important abilities are using interviewing skills and remaining nonjudgmental. Using interviewing skills helps the nurse gather important information from the patient, while remaining nonjudgmental creates a safe and supportive environment for the patient. Another important ability is being assertive when collecting data, as this ensures accurate and comprehensive information is obtained. Displaying sympathy when communicating can be beneficial, but it is not as important as the other abilities mentioned.