ARDS lung protective ventilation, prone positioning, inhaled nitric oxide, ventilator liberation protocols, and VV and VA ECMO basics.
About this set
35 basic cards for NBRC CRT/RRT Respiratory Therapy. It opens with "In the Berlin definition of ARDS, what PaO2/FiO2 range defines mild ARDS?" and "In the Berlin definition of ARDS, what PaO2/FiO2 range defines moderate ARDS?". More Healthcare and Nursing decks are listed below.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- In the Berlin definition of ARDS, what PaO2/FiO2 range defines mild ARDS?
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200-300 mmHg (with PEEP or CPAP >= 5 cmH2O)- In the Berlin definition of ARDS, what PaO2/FiO2 range defines moderate ARDS?
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100-200 mmHg- In the Berlin definition of ARDS, what PaO2/FiO2 value defines severe ARDS?
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Less than or equal to 100 mmHg- What tidal volume target does the ARDSNet lung protective ventilation protocol use?
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6 mL/kg of predicted body weight- What plateau pressure limit does lung protective ventilation aim to keep ARDS patients under?
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Less than 30 cmH2O- Driving pressure during mechanical ventilation is calculated as ____.
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plateau pressure minus PEEP- What is permissive hypercapnia?
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Deliberately allowing PaCO2 to rise above normal to keep tidal volumes and pressures low and protect the lungs- Why is PEEP titrated in ARDS management?
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To keep alveoli open at end-expiration, preventing atelectrauma and improving oxygenation- Why does the ARDSNet protocol set tidal volume using predicted body weight instead of actual body weight?
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Lung size correlates with height and sex, not actual weight, so using actual weight in an obese patient would risk volutrauma- What is the main clinical benefit shown by low tidal volume ventilation in ARDS?
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Reduced mortality by limiting volutrauma and barotrauma- What P/F ratio threshold, despite optimized ventilator settings, prompts consideration of prone positioning in ARDS?
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Less than 150 mmHg- What is the minimum recommended duration for a single prone positioning session in ARDS?
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At least 16 hours- What is the main physiologic mechanism by which prone positioning improves oxygenation in ARDS?
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It recruits dorsal lung units and creates more uniform pleural pressure, improving ventilation-perfusion matching- What is a common complication of prolonged prone positioning?
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Pressure injuries and facial or airway edema- Name a contraindication to placing an ARDS patient in the prone position.
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An unstable spine fracture
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