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Formulas & Norms Quiz

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1. HCT




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2. PaCO2




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3. RSBI




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4. *Ct




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5. PaO2/FIO2




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6. PaO2-to decrease while pt on mech vent




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7. I:E ratios/%




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8. CcO2




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9. VTspont




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10. VD/VT Ratio




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11. pulmonary artery pressure, norm 25/10 (20-35/5-15), >35/15 is inconsistent with weaning, pulm hypertension, left vent fail, fluid overload




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12. Airway Resistance norm is 5-12cmH2O/L/Sec for intubated pt, (PIP-Pplat)/(flow in min/60 sec). Increase in RAW reflects an issue with airways, bronchospasm, secretions, edema etc.




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13. 80-100 torr, >60 mmHg on <60% weaning




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14. 106+6/lb over 60"




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15. perfusion in excess of ventilation




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16. 22-26 torr




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17. Mean arterial pressure, norm 90 (80-100), 70-130 weaning




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18. Residual Volume 1.2 L




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19.  total cycle time, 60 sec/RRset, amount of time for a single breath cycle both I and E. If I:E is 1:2 then TCT is 3




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20.  75vol%





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