What is a primary feature that distinguishes acute stress disorder from post-traumatic stress disorder (PTSD)?

The primary feature that distinguishes acute stress disorder from post-traumatic stress disorder (PTSD) is the duration of symptoms. Acute stress disorder occurs in the immediate aftermath of a traumatic event, typically lasting from three days to one month. If the symptoms persist beyond one month, the diagnosis may shift to PTSD, which is characterized by similar symptoms that occur for a longer duration, typically more than one month following the traumatic incident.

While both disorders can involve avoidance symptoms, specific traumatic events, and levels of distress experienced, the critical differentiating factor is the time frame of symptom occurrence. This temporal distinction is essential for accurate diagnosis and ensuring that individuals receive appropriate intervention and care based on the timeline of their symptoms.