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AMC MCQ Surgery 2026: High-Yield Topics Every IMG Must Know

Last reviewed: May 2026 | Written by the MplusX Editorial Team

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– Surgery is the second-highest weighted domain at ~20% — approximately 24 scored questions.

– AMC surgery questions test initial clinical management and recognition — not operative technique.

– The highest-yield areas: acute abdomen, trauma, vascular surgery, and urological emergencies.

– Primary CTA: Try MplusX free and filter to Surgery — see exact question styles for 2026.

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Twenty percent.

That is what Surgery represents in the AMC MCQ. Twenty-four scored questions. The second-largest domain after General Medicine.

Most IMGs approaching the AMC MCQ are either very comfortable with surgery (if they trained in a surgical-heavy system) or very uncomfortable with it (if their training was primarily in medicine or GP settings).

But here is the key insight that changes how you prepare:

The AMC does not test surgical technique. It tests surgical recognition and initial management. You are being examined as the first doctor to see the patient — not as the operating surgeon.

“What is the most appropriate next step in management?” is the AMC surgery question. Not “Describe your surgical approach.”

This guide maps exactly which conditions are tested, what the high-yield recognition criteria are, and how to approach surgical questions efficiently.

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What AMC Surgery Questions Actually Look Like

A typical AMC surgery question:

“A 65-year-old man presents with sudden onset severe central abdominal pain radiating to his back. He is pale, diaphoretic, and hypotensive. His abdomen is tender. What is the most appropriate immediate management?”

The answer is not a detailed surgical operative plan. It is: IV access, fluid resuscitation, urgent vascular surgical referral, CT angiography if haemodynamically stable, or immediate theatre if not.

The question tests:

1. Can you recognise this as a ruptured AAA? 2. Do you know the immediate management priorities? 3. Do you know when to involve a surgeon vs when to resuscitate first?

This pattern — recognition + initial management + appropriate escalation — defines the vast majority of AMC surgery questions.

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High-Yield Area 1: Acute Abdomen

Acute abdomen questions are the most frequently appearing surgery category. Every presentation in this group requires the same core framework: recognise the condition, establish the diagnosis, manage appropriately.

Appendicitis

Presentation: Right iliac fossa pain, migration from periumbilical region, fever, nausea, anorexia, guarding and rebound tenderness at McBurney’s point.

Scoring: Alvarado score (MANTRELS) — scores ≥7 suggests appendicitis, consider immediate surgical referral.

Investigation: Clinical diagnosis + USS (first line in children and women of reproductive age) or CT abdomen (adults, diagnostic uncertainty).

Management: IV antibiotics, nil by mouth, surgical referral. Laparoscopic appendicectomy is standard.

AMC trap: Do not select CT as the first-line investigation in a pregnant patient or child — ultrasound is preferred to avoid radiation. The distinction appears regularly.

Cholecystitis and Biliary Conditions

Condition	Key Feature	Management
Biliary colic	RUQ pain, no fever, no jaundice, USS shows gallstones	Analgesia, elective cholecystectomy
Acute cholecystitis	RUQ pain, fever, Murphy’s sign positive	IV antibiotics, early laparoscopic cholecystectomy
Choledocholithiasis	Jaundice + RUQ pain, no fever	ERCP for stone removal
Cholangitis	Charcot’s triad: fever, jaundice, RUQ pain	Urgent ERCP + IV antibiotics, blood cultures
Gallstone pancreatitis	Epigastric pain + raised amylase/lipase + gallstones on USS	IV fluids, NBM, ERCP if obstruction

AMC trap: Cholangitis (Charcot’s triad) requires urgent ERCP — not just antibiotics and observation. The urgency is frequently undertreated in wrong answer options.

Bowel Obstruction

Small bowel obstruction (SBO): Central colicky pain, vomiting (early and prominent), abdominal distension, high-pitched bowel sounds. AXR shows multiple air-fluid levels, no gas in colon.

Large bowel obstruction (LBO): Distension prominent, vomiting late, change in bowel habit. AXR shows peripheral colonic distension. Common causes: colorectal cancer, sigmoid volvulus, diverticular disease.

Management: NBM, IV fluids, NG decompression, surgical review. Sigmoid volvulus → flexible sigmoidoscopy first, surgery if fails.

Perforated Viscus

Presentation: Sudden-onset severe generalised abdominal pain, board-like rigidity, peritonism. Patient lying still (movement worsens pain). Free air under diaphragm on erect CXR.

Management: Immediate surgical referral. IV antibiotics. IV fluids. NBM. Upright CXR or CT to confirm perforation.

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High-Yield Area 2: Trauma

Trauma questions test your ability to apply the primary and secondary survey framework and recognise immediately life-threatening injuries.

Primary Survey — ABCDE

Airway (with C-spine protection): Is the airway patent? If not — jaw thrust, suction, airway adjuncts (OPA/NPA), or definitive airway (intubation/surgical airway).

Breathing: Look, listen, feel. Immediate threats: tension pneumothorax (tracheal deviation, absent breath sounds, haemodynamic collapse → needle decompression, do NOT wait for CXR), open pneumothorax (three-sided dressing), massive haemothorax (intercostal catheter).

Circulation: Control haemorrhage. Two large-bore IV cannulas. Fluid resuscitation. Identify shock type.

Disability: GCS, pupils, lateralising signs.

Exposure: Full exposure. Log roll. Temperature management.

AMC trap: Tension pneumothorax is a clinical diagnosis — do not wait for CXR. Needle decompression in the second intercostal space, midclavicular line, is the immediate intervention.

Shock Classification in Trauma

Class	Blood Loss	HR	BP	Conscious State
I	<750ml (<15%)	Normal	Normal	Normal
II	750–1500ml (15–30%)	>100	Normal	Anxious
III	1500–2000ml (30–40%)	>120	Decreased	Confused
IV	>2000ml (>40%)	>140	Very low	Unconscious

AMC trap: Class I shock shows NO change in BP. Only Class III and IV show hypotension. Tachycardia alone in a trauma patient = significant blood loss even with normal BP.

Head Trauma — CT Indications

The Canadian CT Head Rule applies to GCS 13–15 patients with minor head trauma:

High-risk factors (CT mandatory): GCS <15 at 2 hours post-injury, suspected open/depressed skull fracture, signs of basal skull fracture, vomiting ≥2 episodes, age ≥65 years.

Medium-risk factors: Amnesia >30 minutes before impact, dangerous mechanism.

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High-Yield Area 3: Vascular Surgery

Abdominal Aortic Aneurysm (AAA)

Screening: Men ≥65 years — one-off abdominal ultrasound (Australian AAA screening program).

Management thresholds:

• <3cm: No intervention, no routine surveillance

• 3–5.4cm: Surveillance ultrasound (6-monthly if 4.5–5.4cm)

• ≥5.5cm or rapid expansion (>1cm/year): Elective repair

Ruptured AAA: Sudden-onset back or flank pain + pulsatile abdominal mass + haemodynamic instability = emergency. Immediate vascular surgery. Do NOT delay for imaging if unstable.

Peripheral Arterial Disease (PAD)

Symptoms: Intermittent claudication (cramping calf pain on walking, relieved by rest) → rest pain → critical ischaemia (tissue loss, ulceration).

Investigation: Ankle-Brachial Index (ABI):

• >0.9: Normal

• 0.7–0.9: Mild PAD

• 0.4–0.7: Moderate PAD (claudication)

• <0.4: Severe PAD (critical ischaemia)

AMC trap: Critical limb ischaemia (rest pain, tissue loss) requires urgent vascular referral — lifestyle modification and exercise therapy are for claudication only.

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High-Yield Area 4: Urology

Testicular Torsion

This is a time-critical emergency. Every hour of delay reduces salvage rate.

Presentation: Sudden-onset severe scrotal pain, high-riding testis, absent cremasteric reflex, tender testis. Nausea and vomiting common.

Management: Do NOT wait for ultrasound if clinical suspicion is high. Emergency scrotal exploration. Delay = testis loss.

AMC trap: The question will often include ultrasound as an option. If torsion is clinically likely and the testis is tender and high-riding — go directly to surgery, not ultrasound.

Renal Colic (Ureteric Stones)

Presentation: Severe loin-to-groin colicky pain, haematuria, patient restless (cannot find a comfortable position — unlike peritonitis where patients lie still).

Investigation: Urine dipstick (haematuria), non-contrast CT KUB (most sensitive), KUB X-ray (calcium stones only).

Management: Analgesia (NSAIDs first-line if no contraindication, opioids if required), IV fluids, alpha-blocker (tamsulosin) for ureteric relaxation and spontaneous passage. Stones >10mm or obstruction with infection → urgent urological intervention.

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Study Strategy for Surgery

Allocate 20% of your total QBank time to surgery — matching its blueprint weight exactly.

Focus first on: Acute abdomen (highest question frequency), trauma primary survey, and surgical emergencies (AAA, testicular torsion). These three areas account for the majority of surgical marks.

Use the “recognition + initial management” mental model for every surgical question. Ask yourself: What is this condition? What is the first intervention? When do I call the surgeon?

Do not over-study operative details. The AMC does not test incision sites, suture techniques, or intraoperative decision-making. Every minute spent on operative knowledge is a minute taken from higher-yield clinical management material.

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Frequently Asked Questions

Do I need surgical clinical experience to do well in the Surgery section?

No. The Surgery section tests initial clinical management — not operative skill or surgical experience. A well-prepared IMG from a non-surgical background can score above 70% in Surgery with focused QBank drilling on the key conditions.

What is the hardest surgery topic in the AMC MCQ?

Vascular surgery (particularly AAA and PAD) tends to produce the most errors because candidates either under-recognise the urgency (ruptured AAA) or over-investigate before acting (testicular torsion). Practice questions specifically targeting these two conditions.

Is trauma important in the AMC MCQ surgery section?

Yes. The primary survey ABCDE framework is directly tested — particularly tension pneumothorax management (clinical diagnosis, immediate needle decompression) and shock classification. Allocate at least 20% of your surgery study time to trauma questions.

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References

• John Murtagh’s General Practice (8th Edition): Chapter 38: The acute abdomen; Chapter 50: Lumps and bumps; Chapter 78: Surgical presentations.
• RACGP Red Book (10th edition): Chapter 9: Early detection of cancers.
• Therapeutic Guidelines (eTG): Part 3 Surgery.

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Disclaimer: This article is written for AMC MCQ examination preparation and general informational purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. Clinical decisions should always be based on individual patient assessment, current Australian Therapeutic Guidelines (eTG), and consultation with qualified healthcare professionals. MplusX is an exam preparation platform and is not a substitute for supervised clinical training.