Learn to think through the ED.
Calm, step-by-step walkthroughs of the common presentations — how the assessment flows, what not to miss, and how the plan comes together. Each one anchored to the relevant national guideline, with links.
How every walkthrough works
Settle & check
Red flags first, then the calm opening moves.
Understand
History router and A–E — assess and act together.
Rule out killers
What points to each, rules it in, stands it down, treats it.
Investigate
What to order, when, and what it tells you.
The plan
Where they go, and what you hand over.
Presentations
ACS, PE, dissection and the other killers, plus risk-stratification and disposition.
Asthma, anaphylaxis, PE, pulmonary oedema, pneumothorax and COPD.
AAA, ectopic, perforation, ischaemic bowel and the acute surgical abdomen.
SAH, meningitis, raised ICP, GCA and the other can't-miss causes.
Cardiac syncope, arrhythmia, PE and the serious mimics of a faint.
Recognition, the Sepsis Six, source control and neutropenic sepsis.
Sorting hypovolaemic, cardiogenic, distributive and obstructive shock.
The general approach, antidotes, paracetamol and TOXBASE.
The GCS drop and its instantly reversible causes.
Who to scan, the intracranial bleeds, and NICE NG232.
FAST, the thrombolysis window and mimics.
Status epilepticus and the treatment ladder.
Recognition and the fluid/insulin approach.
Resuscitation, risk scores and endoscopy.
Causes, the sick kidney and when to worry.
The tachycardias and when to shock.