SURGERY - PERIOPERATIVE + POSTOPERATIVE CARE
YEAR 3 | PAGE 62A - PRE-OP RISK -> OR READINESS -> POST-OP DETERIORATION -> FLUIDS / NUTRITION -> DISPOSITION
SURGERY QUESTIONS OFTEN TEST TIMING MORE THAN LABELS: IS THE PATIENT STABLE, DOES MORE TESTING CHANGE THE PLAN, WHAT MUST HAPPEN BEFORE THE OR, AND WHAT POSTOPERATIVE CHANGE REQUIRES REASSESSMENT, SOURCE CONTROL OR ESCALATION? A. PERIOPERATIVE / POSTOPERATIVE REVIEW MAP
| Presentation / task | Reasoning spine | Questions should force |
|---|---|---|
| Pre-op decision | Indication + urgency -> stability -> cardiopulmonary risk -> medication/bleeding -> infection/VTE prevention -> consent/logistics. | What truly changes timing or management vs what is unnecessary delay? |
| Post-op tachycardia / hypotension | Hemorrhage vs hypovolemia vs sepsis vs cardiopulmonary stress vs pain -> stabilize + localize -> reassess. | Do not blame the operation/day number; define the physiologic threat. |
| Post-op dyspnea / hypoxemia | Airway/ventilation -> aspiration/pneumonia -> PE -> edema -> PTX -> targeted support/testing. | What needs treatment before a complete diagnosis? |
| Oliguria / AKI | Perfusion -> obstruction/catheter -> intrinsic injury -> medications/labs -> reassess fluids rather than reflex bolus. | Is this resuscitation, maintenance, replacement, or no-fluid physiology? |
| Nutrition / bowel recovery | GI function + aspiration risk + operative course -> enteral when feasible; recognize ileus, obstruction, leak, refeeding risk. | Route/timing + expected recovery vs complication. |
SURGERY QUESTIONS OFTEN TEST TIMING MORE THAN LABELS: IS THE PATIENT STABLE, DOES MORE TESTING CHANGE THE PLAN, WHAT MUST HAPPEN BEFORE THE OR, AND WHAT POSTOPERATIVE CHANGE REQUIRES REASSESSMENT, SOURCE CONTROL OR ESCALATION? A. PERIOPERATIVE / POSTOPERATIVE REVIEW MAP — 1. Pre-op evaluation is a management question, not a ritual clearance checklist DEEP EXPLANATION The useful preoperative test or consultation is the one that can change operative timing, perioperative monitoring, anesthesia strategy or risk reduction. Emergency source
control can outrank exhaustive optimization when delay is more dangerous than the comorbidity.
WHY STUDENTS MISS IT Learners often equate "more risk" with "more testing" and order broad studies that do not alter the decision. EASIEST CLUE Ask: Will this result change whether, when, or how the patient goes to the OR? If not, it is unlikely to be the next-step answer. — 2. Postoperative deterioration should be solved by syndrome and physiology - not by a postoperative-day mnemonic DEEP EXPLANATION Fever, tachycardia, hypoxemia, hypotension, oliguria or delirium require a fresh differential based on severity, procedure, devices, medications, source and trajectory. The
same symptom can reflect hemorrhage, infection, PE, aspiration, medication effect or another emergency.
WHY STUDENTS MISS IT The familiar "post-op fever by day" shortcut can override localizing clues and physiologic instability. EASIEST CLUE Start with what is failing now? Perfusion, oxygenation, ventilation, source control, renal output or cognition - then localize the cause. — 3. Fluids, electrolytes and nutrition are different jobs that require reassessment DEEP EXPLANATION Resuscitation restores perfusion, maintenance replaces ordinary needs, and replacement matches abnormal ongoing losses. Nutrition asks whether the gut works, what
route is safe and whether refeeding/metabolic complications require monitoring. Every intervention should be followed by objective reassessment.
WHY STUDENTS MISS IT The familiar "post-op fever by day" shortcut can override localizing clues and physiologic instability. EASIEST CLUE Start with what is failing now? Perfusion, oxygenation, ventilation, source control, renal output or cognition - then localize the cause. — WHY STUDENTS MISS IT Students may treat "low urine" or "post-op" as automatic indications for more IV fluid and may confuse volume support with nutrition. EASIEST CLUE Name the job first: resuscitation, maintenance, replacement, or feeding. Then ask what response would prove the plan is working. B. SUBSTANTIVE REPAIR RESOURCES Postoperative Care - Surgery | Lecturio - post-op surveillance and complication reasoning Perioperative Care: Fluids and Electrolytes | Lecturio - fluid/electrolyte decisions in surgical patients OnlineMedEd - Clinical - surgery and acute-care clinical framework
2026/27 clerkship-review expanded edition - align with school objectives, local protocols and current NBME/NBOME guidance