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A 27-year-old woman with autism spectrum disorder (ASD), level 1, is referred to the PMHNP for evaluation of anxiety symptoms. She reports intense distress in social situations, avoidance of unfamiliar environments, rigid adherence to daily routines with severe distress when routines are disrupted, repetitive checking of her schedule and belongings, and difficulty with transitions between activities. She also describes sensory overload in crowded or noisy environments that triggers panic-like symptoms including racing heart, nausea, and an overwhelming need to leave. She has been told by a previous provider that she has generalized anxiety disorder, social anxiety disorder, and obsessive-compulsive disorder. The PMHNP considers the diagnostic assessment. Which of the following best reflects evidence-based practice for differentiating anxiety from core ASD features in this patient?
Explanation
Differentiating co-occurring anxiety from core ASD features requires functional analysis of each symptom cluster rather than reliance on topographical resemblance. Routine rigidity in ASD serves predictability needs versus ego-dystonic anxiety reduction in OCD. Social avoidance may reflect sensory overload or communication difficulty rather than fear of negative evaluation. Standard anxiety scales have limited validity in autistic populations and require clinical interpretation.
Key Takeaway
In autistic adults, differentiating true anxiety disorders from ASD-intrinsic features requires functional analysis examining the underlying mechanism of symptoms; routine rigidity, social avoidance, and sensory-triggered distress in ASD have different functions than topographically similar anxiety symptoms.