Final answer:
PTSD is often misdiagnosed as acute stress disorder because their initial symptoms are similar, but the duration and impact on functioning differ. Historically, PTSD was not widely recognized or treated, contributing to confusion in diagnosis. Improved awareness of PTSD's persistence and severity can help distinguish it from acute stress reactions.
Step-by-step explanation:
Post-traumatic stress disorder (PTSD) is often misdiagnosed as acute stress disorder because of the similar initial symptoms they share, such as intrusive thoughts, negative mood, and hyperarousal. However, they are distinct conditions; PTSD is diagnosed when symptoms persist longer than one month and significantly impair one's functioning. The misdiagnosis can occur due to a lack of awareness or understanding of the differences in symptom duration and severity. Historically, post-traumatic stress disorder was common among soldiers, such as during the Vietnam War, but was not widely recognized or treated appropriately, leading to long-term psychological and health consequences. PTSD was perceived as a normal reaction to trauma rather than a treatable condition. This historical context shows that recognition and diagnosis have improved but also highlights why PTSD may be confused with acute stress disorder, especially in the immediate aftermath of a traumatic event.