Clinical reasoning is the process by which healthcare professionals, such as doctors and nurses, gather and analyze patient information to make informed decisions about diagnosis and treatment. This involves assessing symptoms, reviewing medical history, and considering test results to understand the patient's condition. Effective clinical reasoning requires critical thinking and the ability to apply medical knowledge to real-life situations. It helps practitioners develop a care plan tailored to the individual needs of the patient, ensuring that interventions are appropriate and evidence-based for optimal health outcomes.