“CCS case mnemonics Reddit” is one of the most common search patterns for Step 3 Day 2 prep — and for good reason. On exam day you have seconds, not minutes, to start a case. The mnemonics that keep getting recommended on r/step3 and in CCS study threads are the ones that force a complete opening sequence so you don’t forget IV access, pregnancy tests, or the 2-minute screen.
How Reddit uses these
Write 2–3 universal mnemonics on your scratch paper before the CCS section starts. Use them as checklists, not as a reason to shotgun every lab on every patient.
1. Case flow: IDRCP
A widely shared approach for every CCS case:
- I — Identification (age, sex, setting, allergies, smoking/alcohol/drugs, vaccines)
- D — Diagnosis (workup matched to the presentation)
- R — Rx / treatment
- C — Consults & counseling
- P — Preventive care & follow-up
The point isn’t the letters — it’s forcing yourself through disposition and prevention before the clock ends.
2. Stabilization: ABCDE / HAVOCC
For unstable patients, Reddit threads repeatedly push “stabilize before the complete physical”:
- ABCDE: Airway → Breathing (O2) → Circulation (IV, fluids) → Disability (glucose, neuro) → Exposure
- HAVOCC (acute opener): Hurt? → Access (IV) → Vitals → Oxygen → Cardiac monitor → C-spine if trauma
For setting-specific first-minute algorithms, see CCS First 60 Seconds Algorithms.
3. Diagnostic starter set: I-BOUP
A common diagnostic checklist mnemonic:
- I — Imaging (CXR, CT, US — matched to complaint)
- B — Blood (CBC, BMP/CMP, and case-specific labs)
- O — Other (EKG, pulse ox, cultures)
- U — Urine (UA ± culture)
- P — Pregnancy test (any woman of childbearing age)
Community tip that shows up constantly: β-hCG before imaging that involves radiation in reproductive-age females.
4. High-yield situation mnemonics
- MOVE IT (sepsis): Measure lactate → Obtain cultures → Volume (30 mL/kg) → Empiric antibiotics → ICU if shock → Target MAP ≥ 65
- FAST / stroke opener: Non-contrast CT head → neuro consult / stroke pathway → ASA only after hemorrhage ruled out → tPA window check
- SMURF (2-minute screen): Schedule follow-up → Medications reconcile → Updated preventive care → Refer → Future labs
These overlap heavily with the templates in our CCS Cases Cheat Sheet.
5. What Reddit warns against
- Memorizing 40 mnemonics and never practicing cases — the software still has to feel automatic.
- Ordering the entire “Cool Cats Crush Mice…” lab mega-list on every outpatient visit — scoring penalizes wasteful invasive workups.
- Skipping preventive care because you “ran out of time” — the 2-minute screen is free points if you have a checklist ready.
How to actually use these on exam day
- Before CCS starts, write IDRCP + SMURF + universal ER opener on scratch paper.
- On case open: vitals → stabilize if needed → focused/complete exam → targeted orders.
- Advance the clock, treat, recheck, dispose.
- On the 2-minute screen: run SMURF every time.
For full condition-specific order sets (not just mnemonics), use the CCS Order Sets Database and drill them in SpeedOrder.
Related guides:
• CCS Cases Cheat Sheet: High-Yield Orders & Mnemonics
• CCS Preventive Care & Discharge Cheat Sheet