Jordan, a 22-year-old senior, describes an episode three weeks ago while sitting in a crowded lecture hall: within a few minutes, his heart began racing, his chest felt tight, he started sweating, and he had a sudden, overwhelming feeling that something terrible was about to happen, though nothing had changed around him. The episode peaked within about five minutes and then gradually faded, leaving him shaken for the rest of the day. Since then, Jordan has had two more similar episodes, both starting suddenly with no obvious trigger. He now spends much of his time worried about when the next one might happen, has started sitting near exits in lecture halls "just in case," and recently skipped a large lecture entirely to avoid being in a crowded room again. He also mentions he has been a fairly anxious person generally since high school, but says this specific racing-heart-and-doom feeling is new and different from his usual worry about grades and the future. A recent physical exam and bloodwork, done at his own request out of concern something was medically wrong, came back normal.
Step 1
Read Presenting Info
Read the presenting information above carefully, then continue when ready.
Step 2
Identify Salient Features
Select the features from this vignette that are most diagnostically salient.
Step 3
Identify Possible Families
Which disorder families should be considered as possible explanations for this presentation?
Step 4
Select Relevant Evidence
Select the pieces of evidence that most directly support the leading formulation.
Step 5
Consider Competing Explanations
Select the explanations that are legitimate competing possibilities worth weighing, even if ultimately less supported.
Step 6
Choose Best Formulation
Which formulation is best supported by the full pattern of evidence?
Step 7
Explain Reasoning
In 2-4 sentences, explain which evidence most strongly supports your formulation and why you ruled out the alternatives. Use hedged, professional language.
Step 8
Review Expert Explanation
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Expert reasoning
This vignette is most consistent with Panic Disorder. Jordan describes recurrent, largely unexpected episodes of intense physical fear peaking within minutes -- the hallmark of a panic attack -- followed by more than a month of anticipatory worry and avoidance behavior (sitting near exits, skipping a lecture) organized around the fear of another episode, which is exactly the additional pattern Panic Disorder requires beyond an isolated attack. His normal physical exam and bloodwork make a medical explanation less likely, though a clinician would still consider and rule out relevant medical causes as part of a full workup rather than relying on a brief history alone. His longstanding general anxiety about grades and the future is a reasonable competing explanation to weigh, but the qualitatively distinct, sudden-onset physical surge he describes -- and his own observation that it feels different from his usual worry -- points toward a discrete panic-attack pattern rather than diffuse GAD-type worry as the primary driver of this particular presentation. Any real formulation would remain provisional pending fuller assessment.