Mechanical Ventilation - Unit 2 SPC
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show | Significant response to increase FIO2. Due to V/Q mismatch. A 20% increase in FIO2 = 10mmHg increase in PaO2
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show | No increase in PaO2 with increase in FIO2. Due to combo of anatomic and capillary SHUNT
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What is Deadspace? | show 🗑
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show | Perfusion w/o Ventilation = Low V/Q. From ARDS, pneumonia, atelectasis.
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Normal V/Q? | show 🗑
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PaO2/FIO2 (PF) ratio | show 🗑
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Normal PaO2/FIO2 (PF) ratio | show 🗑
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Calculate Minute Ventilation | show 🗑
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Calulate VD/VT | show 🗑
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show | VA = (1-VD/VT) x RR x Vt
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show | Remember Stat = Plat, Vt/(Plat - PEEP if any)
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show | 0.05-0.17 L/cmH2O or 50-170ml/cmH2O
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Static measures what? | show 🗑
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show | Vt/(Peak - PEEP if any)
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Dynamic measures what? | show 🗑
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Static Compliance is altered by | show 🗑
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Dynamic Compliance is altered by | show 🗑
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show | Peak-Plat pressure/Flow
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show | 1-2 cmH2O/L/sec, Athsma and Emphysema is 13-18
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Tissue Resistance | show 🗑
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show | Anatomical, Alveolar, Mechanical
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show | Conducting Airways
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Mechanical Deadspace | show 🗑
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Alveolar Deadspace | show 🗑
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show | Shit that affects the chest wall, Kyphoscoliosis, Pectus Excavatum, Ascites, Obesity, Chest Strapping, Diaphragmic impairment
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Factor that alter LUNG, THORACIC, STATIC, and DYNAMIC Compliance | show 🗑
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show | When starting at PACO2 of 40, for every 20 increase, the pH decreases .10, ... for every PACO2 decrease of 10, pH increases by .10
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Changes in BiCarb caused by PACO2 | show 🗑
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show | If PO2 = 30 sat is 60, 60 is 90, and 40 is 75(VENOUS)
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show | get tube with smaller diameter.
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