Alteration in Mental Status
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Reviewed By:

Bret Mobley, MD, MS

Bret Mobley, MD, MS (Neuropathology)

Dr. Mobley graduated from the University of Michigan Medical School, completing a masters degree in neuroscience between his second and third years of medical school. He trained as a resident in pathology at Stanford University Hospital before joining the faculty of Vanderbilt University Medical Center in Nashville Tennessee in 2010. He was promoted to Associate Professor in 2018 and to Neuropathology Division Director in 2020.

Shohei Harase, MD

Shohei Harase, MD (Neurology)

Dr. Harase spent his junior and senior high school years in Finland and the U.S. After graduating from the University of Washington (Bachelor of Science, Molecular and Cellular Biology), he worked for Apple Japan Inc. before entering the University of the Ryukyus School of Medicine. He completed his residency at Okinawa Prefectural Chubu Hospital, where he received the Best Resident Award in 2016 and 2017. In 2021, he joined the Department of Cerebrovascular Medicine at the National Cerebral and Cardiovascular Center, specializing in hyperacute stroke.

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  • Alteration in mental status

  • Change in awareness levels

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Content updated on Jan 4, 2023

About the symptom

Altered mental status is when the brain doesn't function normally. This includes confused thinking, reduced awareness, disorientation, and drowsiness. There are many causes, such as infection, blood sugar changes, and dehydration.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Recent changes in mental state

Possible causes

  • Tension headache

    A type of headache with a band-like, pressing sensation at the forehead and sides. Causes include physical stress, such as long periods of desk work and driving, or mental stress.

  • Gastro Esophageal Reflux Disease (GERD)

    A condition where stomach acid flows back up the esophagus (food pipe). It can be caused or worsened by obesity, alcohol, and caffeine. Eating habits also play a role - eating large meals quickly or lying down after meals are known triggers.

  • Adjustment disorder

    A psychological disorder, often with low mood and anxiety. It is triggered by a sudden change in life circumstances, e.g. divorce or losing a job.

  • Dissociative disorder
  • Migraine
  • Alzheimer dementia (AD)
  • Anorexia nervosa / bulimia nervosa

Related serious diseases

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Recently, are you more confused than before?

  • Do you feel fatigued?

  • Do you have difficulty sleeping (Insomnia)?

  • Do you have less or no appetite, therefore eat less food?

  • Do you feel tired almost every day and unmotivated to do anything?

Other Related Symptoms

Similar symptoms or complaints

Reviewed By:

Bret Mobley, MD, MS

Bret Mobley, MD, MS (Neuropathology)

Dr. Mobley graduated from the University of Michigan Medical School, completing a masters degree in neuroscience between his second and third years of medical school. He trained as a resident in pathology at Stanford University Hospital before joining the faculty of Vanderbilt University Medical Center in Nashville Tennessee in 2010. He was promoted to Associate Professor in 2018 and to Neuropathology Division Director in 2020.

Shohei Harase, MD

Shohei Harase, MD (Neurology)

Dr. Harase spent his junior and senior high school years in Finland and the U.S. After graduating from the University of Washington (Bachelor of Science, Molecular and Cellular Biology), he worked for Apple Japan Inc. before entering the University of the Ryukyus School of Medicine. He completed his residency at Okinawa Prefectural Chubu Hospital, where he received the Best Resident Award in 2016 and 2017. In 2021, he joined the Department of Cerebrovascular Medicine at the National Cerebral and Cardiovascular Center, specializing in hyperacute stroke.

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