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unconsciousness
(redirected from loss of consciousness)

   Also found in: Dictionary/thesaurus, Acronyms, Wikipedia, Hutchinson 0.06 sec.
un·con·scious·ness (n-knshs-ns)
n.
A state of impaired consciousness in which one shows no responsiveness to environmental stimuli but may respond to deep pain with involuntary movements.

unconsciousness
an abnormal state of lack of response to sensory stimuli, resulting from injury, illness, shock or some other bodily disorder. A brief loss of unconsciousness from which the animal recovers spontaneously or with slight aid is called fainting. Deep, prolonged unconsciousness is known as coma. See also levels of consciousness.


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This mild traumatic brain injury (TBI) that occurs in sports may or may not be associated with loss of consciousness but can have sequelae such as headache, dizziness, depression, irritability, impaired attention, and slowed mental processing.
When you are facing a life threatening situation such as loss of consciousness, breathing trouble, or excessive bleeding, calling 911 may be your best option.
government health statistics say concentrations of H2S greater than 500 parts per million can cause loss of consciousness and can be lethal.
 
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