Which option best describes Post-Traumatic Amnesia (PTA)?

Which option best describes Post-Traumatic Amnesia (PTA)?

• A. The time between the injury and memory restoration
• B. The period of coma lasting 24 hours
• C. The time to regain motor function
• D. The time until patient can walk independently

Answer: (A)

Post-traumatic amnesia is the interval after brain injury when the person cannot form new memories or maintain a coherent stream of memory for ongoing events. It ends when continuous, lasting memory for recent experiences returns. That makes the description of the time between the injury and memory restoration the best fit. This is distinct from a coma (a state of unconsciousness or severely reduced responsiveness) and from the return of motor function or walking ability, which describe physical recovery rather than memory formation. PTA helps gauge how severely the brain was affected and how recovery may progress.

Post-traumatic amnesia is the interval after brain injury when the person cannot form new memories or maintain a coherent stream of memory for ongoing events. It ends when continuous, lasting memory for recent experiences returns. That makes the description of the time between the injury and memory restoration the best fit. This is distinct from a coma (a state of unconsciousness or severely reduced responsiveness) and from the return of motor function or walking ability, which describe physical recovery rather than memory formation. PTA helps gauge how severely the brain was affected and how recovery may progress.