Anesthesia Handbook 2026: Pathophysiology, Diagnosis, and Treatment of Perioperative Disease for Clinical Practitioners

The monitor is alarming, the surgeon is waiting, and the patient is deteriorating — and you have seconds, not minutes, to know exactly what is happening and what to do next. Most clinical references tell you what drugs do. They do not tell you what to do when the ETCO₂ is rising and the volatile agent concentration is already 1.2 MAC and the temperature is trending up and the clock is running. This handbook changes how you read the room — training you to recognize the integrated monitor pattern before the crisis escalates and execute the mechanism-matched move before it becomes irreversible. Inside this handbook: • The Monitor-to-Move Pattern System — 56 named clinical patterns, each with its monitor signature, specific move, dangerous misattribution, and a single decision anchor that locks it in memory • Recognition before deterioration — the early ETCO₂ rise that precedes malignant hyperthermia, the narrow pulse pressure that signals tamponade, the quiet PACU patient who is not recovering but delirious • Mechanism-matched vasopressor selection — why phenylephrine for cardiogenic hypotension actively worsens the patient and what to give instead • OLV hypoxemia solved — the step-by-step algorithm from FiO₂ to CPAP to surgical vascular ligation, with the physiological rationale at every decision point • Opioid-tolerant patient management — OME calculation, buprenorphine continuation versus cessation, and why a standard PCA prescription will precipitate withdrawal • Regional anesthesia toxicity — the three simultaneous signals of intravascular injection and why lipid emulsion must be drawn up before the first mL of local anesthetic is injected • The complete perioperative crisis library — anaphylaxis, LAST, MH, tension pneumothorax, VAE, and OR fire, each with a protocol-driven immediate response sequence This handbook is written for anesthesiology residents, CRNAs, SRNAs, anesthesiologist assistants, and practicing clinicians who need a decision-ready reference that matches the speed and complexity of the operating room. Every patient on your table deserves a clinician who already knows what the monitor is telling them — add this handbook to your practice.