Final answer:
The initial nursing assessment is conducted during the orientation phase of the therapeutic relationship. It involves establishing rapport, identifying problems and needs, and planning care, forming the basis for future therapeutic interventions.
Step-by-step explanation:
The initial nursing assessment in a therapeutic relationship typically occurs during the orientation phase. This is when the nurse first meets with the patient to establish rapport, identify the patient's problems and needs, set goals, and plan care. The orientation phase serves as a foundation for the subsequent working phase where most of the therapeutic intervention and patient care occurs. It precedes the termination phase, which involves summarizing achievements of the therapy, reviewing the course of treatment, and saying goodbye. This is quite different from the pre-orientation phase, which involves the nurse's preparation for the initial meeting with the patient.