Pearls in Writing · From the Podcast
Panic Disorder vs PTSD: Running From the Feeling, or From the Memory?
Panic attacks plus a witnessed fatal crash looks like an automatic PTSD diagnosis — and that is exactly the trap this episode dissects. These flash cards apply DSM-5-TR criteria to one delivery driver and turn on a single question: is he running from the feeling, or from the memory? Flip each card for the criteria and the caveats.
🎧 From the episode: Panic Disorder vs PTSD: Differential Diagnosis Case Study
The Trap: A Trauma Story That Biases the Diagnosis
Meet Freddie
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- 34-year-old delivery driver asking for "something for his nerves."
- Four months of 8–10 discrete episodes of sudden, overwhelming fear, arriving out of nowhere.
- Peak within 2–3 minutes; episodes run 20–30 minutes.
- Between episodes: pulse-checking, aspirin carried "in case it's a heart attack," highway avoidance, lost work hours and income.
- Medical causes and substance use ruled out.
The rubber-stamp trap
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- Six months ago he witnessed a serious multi-vehicle collision and saw a driver bleeding out — Criterion A exposure is genuinely present.
- Sensory vividness (blood, sirens) primes clinicians to rubber-stamp PTSD.
- The episode's warning: do not be led by the nose — a dramatic story is a bias delivery system.
- And the counterweight: "not PTSD" never means "not serious." Freddie is terrified and functionally shrinking.
Panic Disorder Criteria (DSM-5-TR): Unexpected Attacks
The attack itself: count the symptoms
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- DSM-5-TR: an abrupt surge of intense fear, peaking within minutes, with at least 4 of 13 symptoms.
- Freddie reports seven: pounding heart, chest tightness, shortness of breath, dizziness, sweating, tingling hands, and the conviction he is dying.
- In panic disorder the attacks are unexpected — they feel random, with no clear trigger.
- His life is now planned around not having the next one. That reorganization is diagnostic, not incidental.
The one question that settles it
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- Street Take: "Are you running from the feeling, or from the memory?"
- Freddie's intrusive images replay his own attacks — gripping the wheel, unable to breathe, losing control.
- His arousal is cued by fear of the next attack — not by crash reminders like burnt rubber, sirens, or that stretch of highway.
- In panic disorder, the center of gravity is the attack itself.
PTSD Criteria (DSM-5-TR): Intrusions Must Replay the Event
What PTSD would require
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- Intrusion symptoms that replay the event: recurrent memories of it, nightmares about it, flashbacks, intense reactivity to cues symbolizing it.
- Avoidance of trauma reminders — thoughts, places, sensations tied to the event.
- Negative alterations in cognition and mood, plus trauma-linked arousal, sustained over a month.
- Freddie's clusters do not anchor to the crash → not PTSD, on today's evidence.
The geography of avoidance
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- Panic avoidance is placeless: anywhere escape is hard is fair game — highway, airplane, checkout line.
- Street Take: panic avoidance clusters where escape is hard — crowds, highways, being alone.
- PTSD avoidance is tethered: concrete, sensory cues with a timeline that starts at the event (the near-drowning survivor avoids water).
- Both disorders withdraw — ask what, specifically, the avoidance is of.
Comorbidity and Delayed Expression: The Honest Caveats
Caveat 1: attacks inside PTSD are cued
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- Panic attacks are common in PTSD — but there they are provoked by trauma reminders.
- The presence of attacks settles nothing; the trigger settles everything.
- The two diagnoses can be comorbid, which is what makes this differential worth doing carefully.
Caveat 2: today's answer is not forever
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- DSM-5-TR carries a delayed expression specifier: full PTSD criteria may emerge six months or more after the event.
- The episode cites estimates that a substantial minority of PTSD cases present this way.
- So keep asking at follow-up: nightmares about the crash? Flashbacks? Crash-linked cues?
- A formulation is a working diagnosis — the chart is a living document.
⚡ Rapid-Fire Recap
- Find what the patient is avoiding — the attack itself, or the trauma reminder.
- Intrusions replaying symptoms → panic; intrusions replaying the event → PTSD.
- Unexpected attacks + a month of dread and life-reorganization = panic disorder's core, trauma history or not.
- Comorbidity and delayed expression mean you re-ask, not just re-assure.
📖 Sources & further reading
- American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR). 2022 — criteria for panic disorder and posttraumatic stress disorder, including the delayed expression specifier.
- U.S. Department of Veterans Affairs / Department of Defense. Clinical Practice Guideline for the Management of Posttraumatic Stress Disorder and Acute Stress Disorder (2023) — PubMed.
- National Institute for Health and Care Excellence. Post-traumatic stress disorder (NICE Guideline NG116) — nice.org.uk/guidance/ng116.
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⚖️ Disclaimer: Pearls and Prep is an educational podcast and is not medical advice. All views expressed are exclusively those of NP Z and do not represent — and are not endorsed by — any other entity or organization. These perspectives are offered solely to build conceptual appreciation of psychiatric topics; they are not a substitute for clinical judgment, current clinical guidelines, or primary references. Always use appropriate resources and your own clinical judgment when making decisions about individual patients. Nothing in this episode creates a clinician–patient relationship.