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In life-threatening hemoptysis, protect the non-bleeding lung. Intubate with a large-bore ETT (≥8.0), suction, and intentionally mainstem the tube into the non-bleeding bronchus, ventilating that lung while isolating the bleeding side. Position bleeding lung down to limit contralateral contamination. Nasal intubation (A) worsens trauma. Positioning alone (C) is insufficient with ongoing airway compromise. Surgical airway (D) is reserved for failed oxygenation/ventilation. Continuously suction, coordinate for definitive bronchoscopy/intervention at the receiving facility, and maintain hemodynamic stability. Capnography and pulse oximetry guide adequacy; prepare blood products if significant hemorrhage continues.

Myasthenic crisis involves neuromuscular junction failure; patients are sensitive to sedatives and neuromuscular blockers. Use lung-protective ventilation (low VT) with adequate PEEP and minimal necessary sedation (e.g., fentanyl ± low-dose propofol or dexmedetomidine), avoiding agents that depress respiratory drive excessively. High VT (A) risks barotrauma and does not treat weakness. SIMV with high support (C) may induce variable effort and fatigue. Routine benzodiazepines (D) can worsen weakness and delirium. Monitor negative inspiratory force and vital capacity if spontaneous trials are contemplated, maintain normothermia, and coordinate with neurology for immunomodulatory therapy (IVIG/plasma exchange) and anticholinesterase management. Reassess frequently for secretion handling and aspiration risk.

Early distributive (septic) shock often presents with vasodilation (low SVR), high or normal cardiac output, widened pulse pressure, and warm extremities. As shock progresses, CO may fall and SVR can rise with vasopressor therapy. High SVR (A) narrows pulse pressure. Tamponade (C) classically shows narrow pulse pressure. Fixed outflow obstruction (D) typically yields low pulse pressure and diminished stroke volume. CCP-C actions: fluid resuscitation as appropriate, prompt vasopressors (norepinephrine), early antibiotics, and source control. Trend lactate and capillary refill; adjust resuscitation based on dynamic response and vigilance for transition to “cold” shock requiring inotropes.

Dexmedetomidine commonly causes bradycardia and hypotension, especially with underlying vagotonia or concomitant opioids. In the setting of significant bradycardia, stop or reduce the infusion and treat per ACLS (e.g., atropine) if unstable. Transition to an analgesia-first regimen (fentanyl) with a supplemental sedative such as low-dose propofol or midazolam if needed. Adding β-blockade (C) worsens bradycardia. Haloperidol (D) doesn’t address sedation needs and carries QT risk, which is notable with methadone. Continue continuous monitoring, evaluate for other bradycardia contributors (hypoxia, hyperkalemia), and titrate alternatives to maintain comfort and synchrony without compromising hemodynamics.

High right-sided pressures (CVP), elevated PAP, relatively normal/low PCWP, and low CO with high SVR signal RV failure from pulmonary hypertension or acute pulmonary vascular load (e.g., PE, ARDS with high PVR). LV failure (A) would elevate PCWP. Distributive shock (B) usually has low SVR. Hypovolemia (D) has low filling pressures. Transport priorities: optimize oxygenation and ventilation (avoid hypoxia/hypercapnia that raise PVR), use gentle PEEP, consider inhaled pulmonary vasodilators for selective afterload reduction, and support MAP with norepinephrine. If contractility is poor, cautious dobutamine may help. Avoid excessive fluids that dilate the RV and worsen septal shift. Maintain sinus rhythm and adequate coronary perfusion for RV.