PLAB 1 Revision: The Complete Guide for 2025
The definitive guide to PLAB 1 revision — how long to revise, the best strategy, which resources to use, and the most common mistakes to avoid. Written for IMGs preparing for the PLAB 1 exam.
PLAB 1 revision is the process of systematically preparing for the Professional and Linguistic Assessments Board Part 1 examination — the primary route for international medical graduates (IMGs) to obtain a licence to practise medicine in the United Kingdom. This complete guide covers everything you need to know: what the exam tests, how to structure your preparation, which resources to use, and the most common mistakes to avoid.
What is PLAB 1?
PLAB 1 is a computer-based examination consisting of 180 Single Best Answer (SBA) questions delivered over 3 hours. It is administered by the GMC at test centres in the UK and internationally. The exam is based on the same GMC UKMLA Content Map used for the UKMLA Applied Knowledge Test, covering all 430 clinical conditions and 217 patient presentations across every major medical specialty.
The pass mark varies by sitting but is typically around 120–130 out of 180 (approximately 65–72%). The GMC uses the Angoff method to set the pass mark, meaning it reflects the expected performance of a borderline competent candidate rather than a fixed percentage.
How Long Does PLAB 1 Revision Take?
Most candidates who pass PLAB 1 on their first attempt report spending 3–6 months on structured revision. The exact duration depends on your baseline clinical knowledge, how recently you graduated, and how many hours per day you can dedicate to revision.
A realistic daily target for PLAB 1 revision is 40–60 SBA questions per day with full review of explanations. At this pace, you will complete 1,200–1,800 practice questions over 4–6 weeks — sufficient for a thorough first pass through the Content Map. A second pass focusing on weak areas and timed mock exams should follow in the final 4–6 weeks before the exam.
The Best PLAB 1 Revision Strategy
Step 1 — Download the GMC Content Map. The GMC UKMLA Content Map is the official blueprint for PLAB 1. It lists all 430 conditions and 217 patient presentations that may be tested. This document is your PLAB 1 revision checklist — every hour of revision should be traceable back to it.
Step 2 — Work through specialties systematically. Choose one specialty at a time — Cardiology, Respiratory, Gastroenterology, and so on — and practise SBA questions on every condition in that specialty before moving on. This builds systematic knowledge and prevents gaps.
Step 3 — Focus on UK management guidelines. PLAB 1 tests UK-specific management according to NICE guidelines. If you trained outside the UK, pay particular attention to differences in drug names, first-line treatments, and investigation pathways compared to your home country's guidelines.
Step 4 — Review every explanation. Read the full explanation for every PLAB 1 question you answer — including those you answered correctly. Understanding why the correct answer is right (and why the distractors are wrong) builds the clinical reasoning skills the exam rewards.
Step 5 — Complete timed mock exams. In the final 4–6 weeks before PLAB 1, practise full 180-question papers under timed conditions. The real exam is 3 hours for 180 questions — approximately 1 minute per question. Building this pace is essential.
Common PLAB 1 Revision Mistakes
The most common mistake in PLAB 1 revision is using resources not aligned to the GMC Content Map. Generic medical question banks designed for other exams (MRCP, USMLE, etc.) may test topics that are not on the PLAB 1 syllabus or miss topics that are. Always use a question bank specifically mapped to the GMC Content Map.
Other common mistakes include: starting revision too late, neglecting NICE guidelines, focusing on rare conditions before mastering common ones, and failing to practise under timed conditions before the exam.
Start Your PLAB 1 Revision Today
The UKMLA Revision Platform provides over 1,178 SBA questions mapped to all 430 GMC conditions and 217 patient presentations — with full Content Map coverage tracking, spaced repetition, detailed NICE guideline explanations, and timed mock exams. Free questions are available immediately with no credit card required.