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How would you manage this ICU airway and ventilation emergency? Opinions from anesthesiologists and intensivists welcome.
Dinesh
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👁 50 views💬 3 answers🕐 May 6, 2026
ICU Case Discussion – Anesthesia/Critical Care A 64-year-old male with a history of Type 2 Diabetes, COPD, and Hypertension was admitted to ICU with severe community-acquired pneumonia and septic shock. Vitals on admission: * BP: 78/46 mmHg * HR: 132/min * SpO₂: 84% on NRBM * RR: 34/min * Temp: 102°F * Lactate: 5.8 mmol/L ABG shows: * pH: 7.21 * PaCO₂: 58 mmHg * PaO₂: 52 mmHg * HCO₃: 18 mEq/L Patient is becoming drowsy and tiring out despite high-flow oxygen. Questions for discussion: 1. Would you proceed with immediate intubation or trial NIV first? 2. Preferred induction agent in this hemodynamically unstable patient? 3. Initial ventilator mode/settings you would start with? 4. Vasopressor of choice and target MAP? 5. What factors predict poor prognosis in this case?
1.immediate endotracheal intubation 2.ketamine induction agent 3. Volume Assist-Control (VC-AC) is a common starting mode Lung-protective strategy Target: Low tidal volume ventilation Use: TV: 6 mL/kg predicted body weight RR: 20–26/min initially FiO₂: 100% initially, then titrate PEEP: 8–12 cm H₂O initially (depending on oxygenation/hemodynamics) Plateau pressure: <30 cm H₂O 4.First-line vasopressor Norepinephrine is first-line in septic shock. target MAP >65mmhg 5. This patient has multiple markers associated with high ICU mortality. Major poor prognostic indicators Shock physiology BP 78/46 High lactate (5.8) Need for vasopressors Severe respiratory failure PaO₂ 52 Likely severe V/Q mismatch or ARDS Hypercapnia with fatigue Acidemia pH=7.21 Mixed metabolic + respiratory acidosis indicates advanced physiologic decompensation. And altered mental status (drowsy) Advanced age and comorbidities Age 64 COPD Diabetes Hypertension Severe sepsis markers High fever Tachycardia Tachypnea Elevated lactate
1.immediate endotracheal intubation 2.ketamine induction agent 3. Volume Assist-Control (VC-AC) is a common starting mode Lung-protective strategy Target: Low tidal volume ventilation Use: TV: 6 mL/kg predicted body weight RR: 20–26/min initially FiO₂: 100% initially, then titrate PEEP: 8–12 cm H₂O initially (depending on oxygenation/hemodynamics) Plateau pressure: <30 cm H₂O 4.First-line vasopressor Norepinephrine is first-line in septic shock. target MAP >65mmhg 5. This patient has multiple markers associated with high ICU mortality. Major poor prognostic indicators Shock physiology BP 78/46 High lactate (5.8) Need for vasopressors Severe respiratory failure PaO₂ 52 Likely severe V/Q mismatch or ARDS Hypercapnia with fatigue Acidemia pH=7.21 Mixed metabolic + respiratory acidosis indicates advanced physiologic decompensation. And altered mental status (drowsy) Advanced age and comorbidities Age 64 COPD Diabetes Hypertension Severe sepsis markers High fever Tachycardia Tachypnea Elevated lactate
1. Early endotracheal intubation with RSI (preoxygenation, fluids & norad infusion prior to RSI) 2. Best induction agent- Ketamine(1-2mg/kg) (best in COPD & Less hypotension) 3. Initial ventilator mode & settings Settings- Mode- Volume Control (AC/VCV) Tidal volume- 6-8mL/kg according to weight RR- 16–20/min (high RR may cause auto-PEEP in COPD pts) FiO₂- Start with 100% ( titrate accordingly, sats to maintain minimum at 90%) PEEP: 6–8 cm H₂O 4. Vasopressor- Norepinephrine MAP target ≥65mmhg 5. Factors predicting poor prognosis -Respiratory failure- Severe hypoxemia, Hypercapnia, Mixed acidosis, Pt on mechanical ventilation - Severe septic shock -Hypotension requiring vasopressors -Encephalopathy -Old age -Multiple comorbs -High lactate levels -Multiorgan failure -Mortality risk- higher in first 24 hours if refractory shock (Early management with broad spectrum antibiotics)
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