Final answer:
The key distinction lies in nursing diagnoses focusing on patient response to health issues and in medical diagnoses identifying specific diseases and conditions.
Step-by-step explanation:
The primary difference between a nursing diagnosis and a medical diagnosis is that A) Nursing diagnosis focuses on the patient's response to health problems, while medical diagnosis identifies diseases and conditions. A nursing diagnosis is created by nurses and looks at how a patient is responding to health or life processes and identifies interventions to address those responses. On the other hand, a medical diagnosis, which is determined by physicians, identifies the specific disease or medical condition affecting the patient. This medical evaluation often includes analyzing symptoms and may include various diagnostic tests to confirm the causative agent of the disease. It is important to recognize that nursing and medical diagnoses serve different but complementary roles in healthcare.