MCQ Neurology Answer 23

Concussion as detailed by guidelines developed by the American Academy of Neurology (AAN) and the Brain Injury Association (BIA), commonly is divided into three different types.

• Person is confused but remains conscious.
• SIGNS: Temporarily confused, dazed, unable to think clearly, has trouble following directions
• TIME: Symptoms clear within 15 minutes

Grade 2 Concussion

• Person remains conscious, but develops amnesia
• SIGNS: Similar to Grade 1
• TIME: Symptoms last more than 15 minutes

Grade 3 Concussion

• Person loses consciousness
• SIGNS: Noticeable disruption of brain function exhibited in physical, cognitive and behavioral ways.
• TIME: Unconsciousness for seconds or minutes

It is important to note that a person can sustain a concussion (Grades 1 & 2) without losing consciousness. A Grade 3 concussion involves the loss of consciousness, even if only briefly.

As defined by the American Congress of Rehabilitation Medicine, MTBI is a traumatically induced physiological disruption of brain function as manifested by some or all of the following:

• Any period of loss of consciousness
• Any loss of memory for events immediately before or after the incident
• Any alteration in mental state at the time of incident
• Focal neurological deficits that may or may not be transient but does not exceed:

1. Loss of consciousness of approximately 30 minutes or less
2. An initial Glasgow Coma Scale score of 13-15 after 30 minutes
3. Post-traumatic amnesia (PTA) of no more than 24 hours

Category: Neurology MCQs