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MRCS Preparation

The MRCS Part B OSCE: What Examiners Actually Score You On

May 2026 · 7 min read · Dr. Ali Heidari

The MRCS Part B is an OSCE of 17 stations, each lasting 9 minutes. But knowing the structure is not the same as knowing what examiners are actually marking. Here is the honest breakdown of how you are scored, drawn from the Intercollegiate MRCS marking framework.

The exam splits into Applied Knowledge (8 stations, 160 marks) and Applied Skills (9 stations, 180 marks). To pass you must pass both content areas independently. The pass mark is set after the exam using borderline regression methodology.

The four domains examiners assess

The Intercollegiate Surgical Curriculum identifies four assessment domains: clinical knowledge and skill, professional conduct, communication, and overall judgement. Most candidates focus entirely on the first. The other three are where marks are lost.

Examiner Insight

The May 2025 sitting pass rate for MRCS Part B was 61%. The candidates who fail are rarely the ones who lack knowledge. They are the ones who knew the answer but did not demonstrate it within 9 minutes.

What gains you marks consistently

A clean introduction at every station — name, role, identity confirmation — is worth measurable marks. Asking for consent before any examination is non-negotiable. A structured approach signals competence. Saying "I would like to start with the airway and assess for patency" is stronger than launching into clinical findings.

The mindset that passes

Treat each station as independent. The OSCE rewards composure, structure, and clinical reasoning expressed out loud. The full preparation framework for all 17 stations is built into SurgAtlas, including a Mock OSCE day with 66 simulated cases.

Written by
Dr. Ali Heidari
Physician · Surgical Educator · Founder of SurgAtlas
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