01 · active retrieval
generate the encounter
Generate an encounter structure and clinical hypothesis from the presenting problem.
United States · NBOME C3DO · interactive practice
Practise integrating osteopathic reasoning into a complete patient encounter.
Rehearse focused history, examination verbalisation, clinical reasoning and patient-centred planning in original C3DO-style practice encounters.
One subscription unlocks every simulation, q-bank and Tutor.
live practice iatroX timer
simulated patient · osteopathic encounter
“The pain keeps returning. Can you explain what you are checking and how it changes the plan?”
- 1integrated patient encounter
- 2osteopathic clinical reasoning
- 3clear plan and closure
—original cases available now
—responsive encounter modes
—iatroX practice timing
Built on the wider iatroX learning platform
1,000,000+ questions answered50,000+ verified clinicians40+ countries
designed for transfer
practise retrieval, then inspect the evidence
Clinical performance is generative: you have to notice, decide and explain without an answer list. The practice loop makes those decisions visible, then gives you a focused route back in.
02 · deliberate feedback
calibrate what happened
Review whether your history, reasoning and explanation formed a coherent clinical chain.
03 · varied replay
make the structure transfer
Practise across contrasting presentations so the approach is not tied to one case pattern.
assessment-linked iatroX Tutor
turn a missed moment into your next rehearsal
Ask the Tutor by text or voice to unpack a decision, rehearse a clearer explanation or probe the reasoning behind your feedback—without altering the completed attempt.
available now
NBOME C3DO practice cases
Choose practice mode for pause-and-coach support, or exam mode for an uninterrupted assessed encounter. Every title below is playable now for eligible subscribers.
loading the live case catalogue…
one subscription · everything included
unlock every simulation—not one exam at a time
Your iatroX subscription covers every current and future simulation library alongside all q-banks, mock exams, Tutor, study planning and CPD tools. There is no separate simulation add-on.
annual accessbest value · save 72%
£99/year
equivalent to £8.25/month
- every clinical simulation library
- every q-bank and mock exam
- Tutor, study planning and CPD
- 7-day money-back guarantee
monthly accessflexible
£29/month
full platform access · cancel any time
- every clinical simulation library
- every q-bank and mock exam
- Tutor, study planning and CPD
- no long-term commitment
Prices shown in GBP. The secure checkout uses the same iatroX subscription plans already available across the platform.
before you practise
NBOME C3DO simulation questions
Is clinical simulation a separate add-on?
No. The same £99/year or £29/month subscription unlocks all simulation libraries, q-banks, mock exams, Tutor, study planning and CPD tools.
Can I practise by voice and text?
Yes. Current conversational cases support voice and text, with an assessment-linked Tutor available after the encounter.
Is this official examination material?
No. These are original iatroX practice cases informed by public exam information and mapped to iatroX learning objectives. They are not official or recalled examination cases.
What can this practice not reproduce?
Voice and text simulation cannot assess hands-on physical examination, structural findings or OMT technique.
your next rehearsal
make the next decision out loud
Choose a current NBOME C3DO case, complete the encounter, then use evidence-linked feedback and Tutor to decide what to repeat.