Stephen J. Schueler, M.D.

Overview

Severe Confusion and Excessive Lethargy 164 Causes

The freeMD virtual doctor has found 164 conditions that can cause Severe Confusion and Excessive Lethargy.

Mouse over to view each condition's most common symptoms

There are 12 common conditions that can cause Severe Confusion and Excessive Lethargy.
  1. Alcohol Poisoning
  2. Arm Cellulitis
  3. Bacterial Pneumonia
  4. Cellulitis
  5. Dehydration
  6. Falls
  7. Foot Cellulitis
  8. Hand Cellulitis
  9. Leg Cellulitis
  10. Pneumonia
  11. Urinary Tract Infection
  12. Viral Gastroenteritis
There are 19 somewhat common conditions that can cause Severe Confusion and Excessive Lethargy.
  1. Drowning and Near Drowning
  2. Drug Abuse
  3. Drug Side Effect
  4. Drug Toxicity
  5. Epilepsy
  6. Facial Cellulitis
  7. Febrile Seizure
  8. Haemophilus Pneumonia
  9. Head Injury
  10. Hepatitis B
  11. Hepatitis
  12. Hyperglycemia
  13. Hypoglycemia
  14. Insulin Reaction
  15. Kidney Disease
  16. Rotavirus
  17. Staph Infections
  18. Stroke
  19. TIA
There are 36 uncommon conditions that can cause Severe Confusion and Excessive Lethargy.
  1. Alzheimer's Disease
  2. Arbovirus Infection
  3. Arenavirus Infection
  4. Aspiration Pneumonia
  5. Bacterial Meningitis
  6. Black Widow Spider Bite
  7. Brain Contusion
  8. California Group Virus
  9. Cirrhosis
  10. Diabetic Ketoacidosis
  11. Drug Withdrawal
  12. Electrical Injury
  13. Electrolyte Imbalance
  14. Hashimoto's Thyroiditis
  15. Hepatitis C
  16. Hypernatremia
  17. Hyponatremia
  18. Hypothyroidism
  19. Irritant Inhalational Injury
  20. Jaundice in Children
  21. Klebsiella Pneumonia
  22. Lead Poisoning
  23. Meningitis
  24. Narcotic Overdose
  25. Organic Brain Syndrome
  26. Salmonella Infection
  27. Schizophrenia
  28. Sedative Overdose
  29. Seizures
  30. Smoke Inhalation
  31. Stab Wounds
  32. Staphylococcus Pneumonia
  33. Streptococcus Pneumonia
  34. Thyroiditis
  35. Tonic Clonic Seizure
  36. Viral Meningitis
There are 97 rare conditions that can cause Severe Confusion and Excessive Lethargy.
  1. Abdominal Sepsis
  2. Acetaminophen Overdose
  3. Acute Tubular Necrosis
  4. Addison's Disease
  5. Adrenoleukodystrophy
  6. Adult Respiratory Distress Syndrome
  7. Aortic Rupture
  8. Aspirin Overdose
  9. Astrocytoma
  10. Boutonneuse Fever
  11. Brain Abscess
  12. Brain Cancer
  13. Brain Tumor
  14. Bubonic Plague
  15. Carbon Monoxide Poisoning
  16. Cavernous Sinus Thrombosis
  17. Cerebellar Hemorrhage
  18. Cerebral Aneurysm
  19. Cerebral Arteriovenous Malformation
  20. Chikungunya Disease
  21. Chronic Subdural Hematoma
  22. Coccidioidomycosis
  23. Colorado Tick Fever
  24. Congo Hemorrhagic Fever
  25. Cryptococcal Infection
  26. Cryptococcal Meningitis
  27. Cyanide Poisoning
  28. Dengue Fever
  29. Disseminated Intravascular Coagulation
  30. Ebola Hemorrhagic Fever
  31. Eclampsia
  32. Encephalitis
  33. End Stage Renal Disease
  34. Epidural Hematoma
  35. Equine Encephalitis
  36. Fat Embolism
  37. Fournier Gangrene
  38. Heatstroke
  39. Hepatitis D
  40. Hepatitis E
  41. Herpes Encephalitis
  42. High Altitude Cerebral Edema
  43. High Altitude Pulmonary Edema
  44. Hydrocephalus
  45. Hypothermia
  46. Inhaled Foreign Body
  47. Insecticide Inhalation
  48. Intracerebral Hemorrhage
  49. Japanese Encephalitis
  50. Legionnaire's Disease
  51. Leptospirosis
  52. Malaria
  53. Malignant Hypertension
  54. Malignant Neuroleptic Syndrome
  55. Marburg Hemorrhagic Fever
  56. Membranous Glomerulonephritis
  57. Mesenteric Vascular Occlusion
  58. Moraxella Pneumonia
  59. Nocardia Infection
  60. Nonketotic Hyperglycemic Coma
  61. Oligodendroglioma
  62. Pericardial Tamponade
  63. Phlebotomus Fever
  64. Pineal Tumor
  65. Primary Biliary Cirrhosis
  66. Pseudomembranous Colitis
  67. Psittacosis
  68. Psychosis
  69. Pulmonary Embolism
  70. Rabies
  71. Respiratory Failure
  72. Reye's Syndrome
  73. Rift Valley Fever
  74. Rocky Mountain Spotted Fever
  75. Sepsis
  76. Septic Thrombophlebitis
  77. Serotonin Syndrome
  78. Shigella Infection
  79. Shock
  80. Skull Fracture
  81. Spina Bifida
  82. St Louis Encephalitis
  83. Stevens Johnson Syndrome
  84. Subarachnoid Hemorrhage
  85. Subdural Hematoma
  86. Syndrome of Inappropriate ADH
  87. Thrombotic Thrombocytopenic Purpura
  88. Toxic Epidermal Necrolysis
  89. Toxic Inhalations
  90. Typhoid Fever
  91. Typhus
  92. Variant Creutzfeldt-Jakob Disease
  93. Ventricular Fibrillation
  94. Ventricular Septal Defect
  95. Wernicke-Korsakoff Syndrome
  96. West Nile Virus
  97. Yellow Fever

Last Updated: Mar 1, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
Copyright DSHI Systems, Inc. Powered by: FreeMD - Your Virtual Doctor

References
  1. Ferri's Clinical Advisor, Fred F. Ferri - 2007
  2. Griffith's 5-Minute Clinical Consult, Mark Dambro - 2006
  3. Harrison's Principles of Internal Medicine, Anthony S. Fauci, Eugene Braunwald, Dennis L. Kasper, Stephen L. Hauser, Dan L. Longo, J. Larry Jameson, Joseph Loscalzo - 2008
  4. Emergency medicine: a comprehensive study guide; Judith E. Tintinalli, Gabor D. Kelen, J. Stephan Stapczynski - 2004
  5. Nelson textbook of pediatrics, Robert Kliegman, Richard E. Behrman, Waldo Emerson Nelson - 2007

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