The Abdominal Examination Station in MRCP PACES (Station 4)

What this station tests and how the 20 minutes run

Station 4 pairs a communication encounter with an abdominal examination, and it is the examination half that this page covers. You are given a focused instruction — typically something like "examine this patient's abdomen" — and you have 6 minutes to examine followed by 4 minutes of discussion with the two examiners.

In practice the abdominal case is really an examination of the whole patient viewed through the lens of the belly. The classic patients have chronic disease with peripheral clues: organomegaly, transplant scars, dialysis access, stigmata of chronic liver disease. Your job in six minutes is to look for every relevant sign, then in four minutes present your findings, offer a sensible differential, and outline how you would investigate and manage. The clock is tight, so a rehearsed, efficient routine is what separates a smooth performance from a scramble.

The marking skills and what "satisfactory" looks like

Five skills are marked at this encounter — A, B, D, E and G — each scored Satisfactory, Borderline or Unsatisfactory. Weight your energy towards B and D, because reading the signs correctly and reaching the right diagnosis are what the exam most rewards.

• A — Physical Examination: a thorough, systematic look that covers what matters — hands, face, neck, chest, the abdomen itself, and the legs. Completeness counts, not the exact order of manoeuvres. Courtesy preliminaries (hand hygiene, introduction, consent, exposure) are assumed done and are not the discriminator here.
• B — Identifying Physical Signs: you correctly detect what is present — a palpable kidney versus a spleen, a transplant in the iliac fossa, the ballotable bilateral masses of enlarged kidneys — and you do not invent signs that are absent. This is the skill examiners scrutinise most.
• D — Differential Diagnosis: a sensible list that contains the correct diagnosis. If you find bilateral flank masses and an arteriovenous fistula, your differential must include polycystic kidney disease.
• E — Clinical Judgement: an appropriate plan with a timescale — the relevant bedside, blood, imaging and specialist steps, and how you would manage the underlying condition.
• G — Maintaining Patient Welfare: the clinical-safety substance — examining gently, not causing discomfort, and sensible safety-netting or onward referral where it applies.

A systematic routine you can rely on

Build a fixed sequence and practise it until it is automatic, so your attention is free for interpreting signs rather than remembering steps. A dependable framework runs from the periphery inwards.

Start at the hands — clubbing, leuconychia, palmar erythema, a Dupuytren's contracture, an arteriovenous fistula at the wrist or forearm. Move to the arms for bruising, scratch marks and tattoos, then the face and eyes for jaundice, conjunctival pallor, xanthelasma and parotid swelling. Inspect the neck for a raised JVP or a tunnelled dialysis line, and the chest for spider naevi, gynaecomastia and loss of body hair.

At the abdomen, inspect first for distension, scars (especially a hockey-stick transplant scar or a rooftop incision), caput medusae and visible masses. Then palpate lightly and deeply, examine for hepatomegaly and splenomegaly, ballot both kidneys, feel for an aortic aneurysm, and percuss for shifting dullness to detect ascites. Finish by checking the legs for oedema and, if permitted, stating you would examine the hernial orifices, external genitalia and perform a rectal examination. Always offer to look at the observation chart and dip the urine. Present your findings as a coherent story — for example, "a patient with signs of chronic kidney disease and bilateral ballotable flank masses" — rather than a random list.

Common conditions and how to prepare

A small number of diagnoses recur in this station, so drill the sign-clusters for each until recognition is instant. The high-yield groups are chronic liver disease and its causes, splenomegaly (haematological and infiltrative), hepatosplenomegaly, and the renal patient — the enlarged, ballotable kidneys and transplant scars of polycystic kidney disease being a common sighting.

For the renal cases especially, work through polycystic kidney disease in detail: how to distinguish an enlarged kidney from a spleen, what a transplant in the iliac fossa tells you, and how you would counsel and manage the patient. The best preparation is deliberate, spaced repetition of the examination routine on real or simulated patients until you can name the diagnosis from across the room and defend your plan in the discussion.