Question

a profound state of unconsciousness associated with an illness or injury is called: a dementia. b a coma. c a convulsion. d a focal seizure.

Explanation:

• Dementia is a general term for a decline in mental ability severe enough to interfere with daily life. It is not a state of unconsciousness.
• A coma is a profound state of unconsciousness. A person in a coma cannot be awakened, fails to respond normally to painful stimuli, light, or sound, lacks a normal wake - sleep cycle and does not initiate voluntary actions. It can be associated with illness (such as a severe brain infection) or injury (such as a traumatic brain injury).
• A convulsion is a general term that describes a sudden, violent involuntary contraction or series of contractions of the muscles. It is not a state of unconsciousness.
• A focal seizure (also known as a partial seizure) is a seizure that starts in one area of the brain. It may or may not cause loss of consciousness, but it is not a "profound state of unconsciousness" as described in the question.

Answer:

B. a coma.