A candidate who knows their chronic disease management cold but fumbles a sepsis scenario will still fail. Acute and emergency presentations are tested heavily in PLAB 1, and the question stem almost always asks the same thing: what is the most immediate management? That phrasing is not incidental โ it is the entire trap.
Why "Most Immediate" Is a Different Question
Most PLAB 1 management questions are not asking what you would eventually do. They are asking what you do right now, in the next sixty seconds, before anything else. The distractor options are usually all correct actions โ they just belong to a later step.
The skill being tested is clinical prioritisation, not factual recall. You may know every drug in the sepsis bundle, but if you reach for the correct antibiotic before selecting the correct first action, you will lose the mark. Understanding this distinction is the foundation for every acute care question in the exam.
A useful internal question to ask yourself: "Would delaying this by two minutes while I do something else cause the patient to die or deteriorate significantly?" If yes, that is your answer. If no, look at the other options again.
Sepsis: The Bundle Question Disguised as a Single Answer
Sepsis recognition and early management appear consistently across PLAB 1 papers. NICE guidance and the Sepsis Six framework are the reference standards you need to know. The Sepsis Six โ high-flow oxygen, blood cultures, broad-spectrum antibiotics, intravenous fluids, serum lactate, and urine output monitoring โ must be delivered promptly once sepsis is suspected.
In a question context, the stem will usually describe a patient with signs of systemic infection and deterioration. The options will include elements of the Sepsis Six in various orders. The key principle: do not delay antibiotics waiting for cultures, and do not delay cultures waiting for antibiotics โ both must happen rapidly, but blood cultures are drawn before the first antibiotic dose. That sequencing is a tested fact.
Watch for questions that describe a patient with confusion, tachycardia, hypotension, and a raised temperature after a procedure or admission. If the stem mentions a lactate above 2 mmol/L, the clinical picture has moved into septic shock territory, and your threshold for aggressive resuscitation drops further.
Acute Coronary Syndrome: Pathway, Not Just Pills
Acute coronary syndrome questions in PLAB 1 tend to test the pathway rather than pharmacology in isolation. The exam wants to know whether you recognise which patient gets primary percutaneous coronary intervention (primary PCI) versus which gets thrombolysis, and under what time constraints.
The core principle from current UK cardiology guidance: STEMI with onset within an appropriate window should be referred for primary PCI at a heart attack centre if the transfer time is acceptable. Thrombolysis is second-line when PCI is not deliverable in time.
Common traps in ACS questions:
- Giving aspirin before or alongside other antiplatelet therapy โ know the standard dual antiplatelet loading doses and which agent pairs with aspirin in the acute setting.
- Confusing NSTEMI and STEMI management โ NSTEMI does not get immediate thrombolysis; it follows a risk-stratified pathway.
- Selecting morphine as a first-line analgesic โ current guidance has moved away from routine opiate use in ACS, and this is a live exam topic.
- Forgetting that a normal troponin at presentation does not rule out ACS โ a second troponin at the appropriate interval is part of the pathway.
Anaphylaxis: One Drug, One Route, No Hesitation
Anaphylaxis is one of the cleanest question types in PLAB 1 emergency medicine because the answer is almost always the same: intramuscular adrenaline (epinephrine), mid-outer thigh, 0.5 mg in adults. Everything else โ antihistamines, steroids, IV fluids, airway adjuncts โ comes after.
The distractors will offer chlorphenamine, hydrocortisone, or nebulised salbutamol. Each has a role in anaphylaxis management, but none is the first action. If the question describes a patient in anaphylaxis and the options include IM adrenaline, that is the answer. There is no clinical scenario in which you give a steroid or an antihistamine before adrenaline in true anaphylaxis.
The one nuance to note: in cardiac arrest secondary to anaphylaxis, standard CPR and IV/IO adrenaline follow the resuscitation algorithm โ the route and dose change in that specific context.
DKA: Fluid Before Insulin
Diabetic ketoacidosis questions test whether you know that intravenous fluid resuscitation precedes insulin in the immediate management of DKA. A common incorrect answer is to start an insulin infusion first. JBDS (Joint British Diabetes Societies) guidance, which PLAB 1 aligns with, is explicit: rehydration begins with 0.9% sodium chloride before the fixed-rate insulin infusion is commenced, except in cases of significant hyperkalaemia where the sequence is modified.
Other tested points in DKA questions:
- Do not give potassium replacement to a hyperkalaemic patient at presentation.
- Monitor for hypoglycaemia and hypokalaemia once the insulin infusion is running.
- Cerebral oedema is the feared complication in children โ fluid replacement is managed more cautiously in paediatric DKA.
- Bicarbonate is not routinely given in DKA regardless of pH.
Drilling DKA scenarios as timed single-best-answer questions is one of the most efficient ways to fix the fluid-before-insulin sequence in memory. The Ant PLAB question bank includes worked explanations for DKA and other acute presentations that walk you through exactly this kind of reasoning step by step.
Making These Topics Stick in Revision
Acute care topics reward a specific revision approach: pathway-based learning over list memorisation. Rather than memorising individual drug doses in isolation, map out the sequential decisions โ recognition, immediate intervention, investigation, escalation โ for each condition.
When you encounter a question you get wrong, the explanation matters more than the mark. Understanding why IM adrenaline comes before chlorphenamine, or why blood cultures precede antibiotics by seconds rather than minutes, is what allows you to apply the principle to a slightly different stem. The Ant PLAB analytics tools can show you which acute care subtopics are costing you marks, so your final revision weeks focus where the return is highest rather than where you already feel confident.
Acute care is not the most difficult part of PLAB 1. But it is the part where confident, incorrect answers are most common โ and where clear, sequenced thinking separates candidates who pass from those who nearly pass.
FAQ
Q: How many acute and emergency questions should I expect in PLAB 1? Emergency medicine and acute presentations feature across multiple blueprint domains in PLAB 1, including resuscitation, acute medicine, and paediatric emergencies. Rather than targeting a fixed number, treat any question describing a deteriorating patient as a candidate for the "most immediate management" framework described above.
Q: Is the Sepsis Six still the framework tested in PLAB 1, or has guidance changed? The Sepsis Six remains the widely taught clinical framework in UK practice and aligns with current NICE guidance on sepsis recognition and management. PLAB 1 questions reflect mainstream UK clinical practice, so understanding the Sepsis Six sequencing โ particularly the relationship between cultures and antibiotics โ remains directly relevant.
Q: In PLAB 1 ACS questions, how do I decide between aspirin and another intervention as the first action? If the question describes a patient with an acute coronary syndrome presentation and the options include calling for senior help or arranging transfer alongside aspirin, the answer depends on whether the immediate safety action is addressed first. In most single-best-answer ACS stems, aspirin administration is tested as the first pharmacological step โ but read carefully for any option that suggests a more urgent airway or resuscitation need, which would take precedence.