Final answer:
Nurses observe and report symptoms but the formal diagnosis of delirium is made by a physician or healthcare provider, integrating clinical observations with medical knowledge.
Step-by-step explanation:
True or False: A nurse can diagnose delirium by observing a patient's behavior. This statement is False. Nurses can certainly observe and report symptoms of delirium, but the diagnosis of delirium is generally made by a physician or a licensed healthcare provider, based on a combination of medical history, physical exams, and sometimes, laboratory tests. Nurses play a crucial role in monitoring the condition and managing care. Observations made by nurses can contribute significantly to a clinician's assessment and help in the diagnosis. However, it is the healthcare provider who integrates the clinical observations with medical knowledge to arrive at a formal diagnosis.