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  1. Delirium - Symptoms and causes - Mayo Clinic

    Apr 18, 2026 · Delirium might be due to not having enough of an important nutrient in the body, such as having low sodium levels. Delirium also may be caused by some medicines, infection, surgery, or …

  2. Delirium: What It Is, Causes, Symptoms & Treatment

    Jun 4, 2025 · Delirium is a type of confusion that happens when illness, changes in your environment or other factors put too much stress on your brain. It’s more common in adults over 65.

  3. Delirium - Johns Hopkins Medicine

    Delirium is an altered state of consciousness, characterized by episodes of confusion, that can develop over hours or days. “Delirium is a syndrome, not a disease,” Oh clarifies, noting that it affects people …

  4. Delirium - Wikipedia

    In common usage, delirium can refer to drowsiness, agitation, disorientation, or hallucinations. In medical terminology, however, the core features of delirium include an acute disturbance in attention, …

  5. Delirium - PMC

    Delirium is a severe neuropsychiatric syndrome that is characterized by acute onset of deficits in attention and other aspects of cognition. Patients also often have altered arousal, from reduced …

  6. Delirium - Brain, Spinal Cord, and Nerve Disorders - MSD Manual ...

    Delirium is an abnormal mental state, not a disease. Although the term has a specific medical definition, it is often used to describe any type of confusion. Although delirium and dementia both affect …

  7. Delirium - Neurology - Merck Manual Professional Edition

    Delirium is an acute, transient, usually reversible, fluctuating disturbance in attention, cognition, and consciousness level. Causes include almost any medical condition (especially when patients are in …

  8. What is Delirium

    What is Delirium? Delirium is a state of confusion that comes on very suddenly and lasts hours to days. If your loved one becomes delirious, it means she/he cannot think very clearly, can’t pay attention …

  9. Delirium: MedlinePlus Medical Encyclopedia

    Oct 27, 2025 · Delirium is sudden severe confusion due to rapid changes in brain function that can occur with physical or mental illness.

  10. Delirium: Types, Causes, and Treatment - Healthline

    Sep 7, 2022 · Delirium is an abrupt change in the brain that causes mental confusion. Symptoms include unclear speaking or thinking, drowsiness, short-term memory loss, and more.