Surgery and Surgical Specialties: Assessment, Timing, and Complications
What the candidate must understand
Surgical questions reward a structured approach: resuscitation before diagnosis, diagnosis before operation, and operation matched to physiology. Understand the acute abdomen differential by quadrant and by onset; the principles of wound healing and wound classification; the physiology of fluid, blood loss, and third-spacing; sepsis source control; and the recognition of compartment syndrome, anastomotic leak, and postoperative fever by postoperative day. In specialty areas, know the indications for urgent versus elective operation in biliary disease, appendicitis, hernia, bowel obstruction, and vascular emergencies such as ruptured aortic aneurysm and acute limb ischemia.
Traps that appear in questions
- Choosing imaging before stabilizing an unstable patient; the unstable patient goes to the operating theatre or receives bedside assessment.
- Confusing small bowel and large bowel obstruction signs, or forgetting that a closed-loop obstruction is a surgical emergency regardless of vital signs.
- Misreading the timing of postoperative fever: immediate (drug or transfusion), early (atelectasis, infection), and later (abscess, anastomotic leak, deep vein thrombosis).
- Overlooking the possibility of pregnancy in a woman of reproductive age presenting with abdominal pain.
- Prescribing analgesia as a substitute for source control in sepsis.
Worked example: acute limb ischemia
A patient with sudden pain, pallor, pulselessness, paresthesia, and paralysis after atrial fibrillation has a threatened limb. The rule of thumb is that sensory loss and weakness indicate irreversible injury within hours; the limb needs immediate anticoagulation and vascular surgical revascularization, not a wait-and-see duplex scan. Document the time of onset, because it determines whether embolectomy or thrombolysis is appropriate.
Rule of thumb
Resuscitate, then image, then operate; and never let a normal laboratory panel override a rigid abdomen or a cold, painful limb.