Panic disorder is one of those Step questions that looks “psych” but tests timing, physical symptoms, and rule-outs like a medicine vignette. If you can quickly recognize a panic attack, then distinguish panic disorder vs agoraphobia vs medical/substance causes, you’ll pick up easy points.
The 10-second one-liner (memorize this)
Panic disorder = recurrent, unexpected panic attacks + ≥1 month of worry/behavior change about future attacks, not due to substances/medical illness, and not better explained by another mental disorder.
Draw-it-out Method (visual mnemonic)
Sketch: “Panic at the Clock Tower”
Draw this simple scene and label as you go:
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A big clock with the hands stuck on “10”
- 10 minutes: panic attack peaks within minutes (often ~10 min), then resolves.
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A lightning bolt hitting a stick figure unexpectedly
- Unexpected attacks are the core of panic disorder (vs expected/cued attacks in specific phobia).
-
Stick figure with:
- Sweat drops
- Shaking lines
- Chest clutch
- Wide eyes
- “I’m dying!” speech bubble
- These are the classic autonomic + catastrophic interpretation symptoms.
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A calendar page labeled “1 month” taped to the tower
- Panic disorder requires ≥1 month of persistent concern or maladaptive behavior change.
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A “NO” sign over:
- A pill bottle (stimulants/caffeine/cocaine)
- A thyroid (hyperthyroidism)
- A lung (PE/asthma)
- A heart (arrhythmia/MI)
- This reminds you: rule out substances/medical causes.
Mnemonic from the drawing: CLOCK
- C: Concern/behavior change ≥1 month
- L: Lightning (unexpected) attacks
- O: Out-of-the-blue episodes that peak quickly
- C: Catastrophic thoughts (“I’m dying/going crazy/losing control”)
- K: Knock out medical/substance causes first
High-yield diagnostic criteria (Step-ready)
Panic attack (the episode)
A panic attack is an abrupt surge of intense fear/discomfort that peaks within minutes with ≥4 symptoms (know the flavor more than the exact list):
Common tested symptoms
- Palpitations
- Sweating
- Trembling
- Shortness of breath
- Chest pain
- Nausea/abdominal distress
- Dizziness/lightheadedness
- Chills/heat sensations
- Paresthesias
- Derealization/depersonalization
- Fear of dying
- Fear of losing control/“going crazy”
Panic disorder (the condition)
- Recurrent, unexpected panic attacks
- Plus ≥1 month of:
- Persistent worry about additional attacks and/or
- Maladaptive behavior change (e.g., avoidance)
The classic vignette pattern
“Out of nowhere, she develops palpitations, chest tightness, sweating, trembling, and fear of dying that peaks in 10 minutes. Now she avoids exercise/crowds and worries daily about another attack.”
Key cues:
- Unexpected
- Rapid peak
- Persistent worry/avoidance
Panic disorder vs other “look-alikes” (high-yield table)
| Condition | What gives it away | Timing/Trigger |
|---|---|---|
| Panic disorder | Unexpected panic attacks + ≥1 month worry/behavior change | No specific trigger required |
| Agoraphobia | Fear/avoidance of places where escape is hard (public transit, crowds, being outside alone) | Situation-linked; can occur with or without panic disorder |
| Specific phobia | Panic symptoms only with a specific object/situation | Cued |
| Social anxiety disorder | Fear of negative evaluation; performance/social situations | Cued |
| GAD | Chronic, diffuse worry most days for ≥6 months | Not abrupt surges |
| PTSD | Trauma exposure + intrusion, avoidance, negative mood/cognition, hyperarousal | Triggered by trauma cues; duration >1 month |
| Illness anxiety disorder | Preoccupation with having illness; minimal somatic symptoms | Persistent health anxiety |
| MI/PE/arrhythmia | Risk factors, abnormal exam/ECG/troponin/D-dimer context | Medical red flags; do not anchor on psych |
Rule-outs you must mention on Step (and in real life)
Before diagnosing panic disorder, consider:
Substances/meds
- Caffeine, nicotine
- Cocaine/amphetamines
- THC (can precipitate panic in some)
- Albuterol/β-agonists
- Decongestants (pseudoephedrine)
- Thyroid hormone excess (iatrogenic)
Medical conditions
- Hyperthyroidism
- Arrhythmias
- Asthma/COPD exacerbation
- Pulmonary embolism
- Hypoglycemia
- Seizures (esp. temporal lobe)
- Pheochromocytoma (rare but classic “episodic” sympathetic surges)
Step strategy: if the vignette gives new onset, older age, syncope, exertional chest pain, or objective abnormalities, think medical first.
Treatment (what to pick on exams)
Acute/abortive (short-term)
- Benzodiazepines (e.g., lorazepam, clonazepam)
- Rapid relief, but dependence, sedation, falls (esp. older adults)
- Use cautiously; avoid in substance use disorder history when possible
Long-term (first-line)
- SSRIs or SNRIs (e.g., sertraline, escitalopram, venlafaxine)
- CBT (especially interoceptive exposure: intentionally inducing sensations like dizziness to break the fear-conditioning loop)
High-yield counseling point: SSRIs/SNRIs can be activating initially—sometimes paired briefly with a benzo at the start.
Mini “draw-it” recap you can share
Draw a clock tower struck by lightning → stick figure sweating, clutching chest → calendar says “1 month” → big NO over caffeine/cocaine/thyroid/heart/lung.
One-liner:
Unexpected panic attacks that peak in minutes + ≥1 month of worry/avoidance = panic disorder (after ruling out medical/substance causes).