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Loss of consciousness
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40 possible causes of 'Loss of consciousness'

1. First Aid for Unconsciousness
Unconsciousness occurs when a person is suddenly unable to respond to stimuli and appears to be asleep. A per...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Loss of consciousness
2. Cardiogenic Shock
Cardiogenic shock is a state where the heart has been damaged to the point where it is unable to supply enoug...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Fatigue
  • Drowsiness
  • Lethargy
  • Pale complexion
  • Loss of consciousness
3. Eclampsia
Eclampsia is a rare but severe condition that causes seizures during pregnancy. Seizures are periods of distu...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Muscle pain
  • Double-vision
  • Pain
  • Coma
  • Loss of consciousness
4. Hypovolemic Shock
Hypovolemic shock is a life-threatening condition that results when you lose more than 20 percent (one-fifth)...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Drowsiness
  • Dizziness
  • Headache
  • Numbness
  • Loss of consciousness
5. Epidural Hematoma
An epidural hematoma is a pocket of blood that forms immediately outside the dura mater. The dura mater is th...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Black and blue marks
  • Loss of appetite
  • Black eye
  • Worst headache ever
  • Loss of consciousness
6. Mini Stroke (Transient Ischemic Attack)
During a transient ischemic attack (TIA), also known as a mini stroke, blood stops flowing to the brain for a...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Hazy vision
  • Amnesia, temporary
  • Unable to speak
  • Clumsiness
  • Loss of consciousness
7. Choking Adult Or Child Over 1 Year
Choking occurs when an object, food, or liquid becomes lodged in the throat. Children often choke as a result...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Peripheral cyanosis
  • Grabbing throat with hand
  • Blue fingernails
  • Loss of consciousness
  • Throat tightness
8. Subdural Hematoma
A subdural hematoma refers to an accumulation of blood on the brain's surface beneath the skull. Subdural hem...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Black eye
  • Nausea
  • Seizures
  • Lethargy
  • Loss of consciousness
9. Dehydration
Dehydration takes place when your body loses more fluid than you drink. The most common cause of water loss f...
This condition is considered a medical emergency. Urgent care may be required.

Symptoms:

  • Abnormal urine odor
  • Coma
  • No urine output
  • Chapped lips
  • Loss of consciousness
10. Epilepsy Overview
The types of epilepsy include Juvenile Myoclonic, Benign Rolandic, Reflex, West Syndrome, Lennox-Gastaut Synd...

Symptoms:

  • Muscle spasticity
  • General weakness
  • Sudden awakening
  • Visual aura
  • Loss of consciousness
This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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