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Calculation Quiz

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1. What is the formula for alveolar ventilation per minute?




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2. The ventilatory parameters for 68kg man with a respiratory rate of 20, tidal volume 480 mL, vital capacity 2.7L. What would his alveolar ventilation/min be in Liters?




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3. What is the formula for Boyle's law?




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4. A 36 year old female with a respiratory rate of 12 and tidal volume of 500mL. What would the minute volume be in Liters?




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5. What is the patient's VD/VT if their PaCO2 is 58 mm HG with a mixed expired CO2 of 32 mm Hg?




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6. What is the formula for minute ventilation?




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7. If a patient has smoked 2 packs of cigarettes daily for the past 35 years, what would their pack year history be?




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8. An E cylinder is at 1400psi and the flow rate is 2.5L/minute. How many minutes will the tank last?




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9. An H cylinder is half full (full = 2200) and the patient is receiving oxygen via nasal cannula at 3L/min. How long will the cylinder last in minutes? in hours?




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10. If a patient's carbon dioxide production is normal and their PACO2 is 80mmHg, what would their alveolar ventilation be?




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11. VD/VT = PaCO2 - PeCo2/PaCo2




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12. 0.3




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13. V1/T1 = V2/T2




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14. 4200mL/min




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15. PACO2 = VCO2 X 0.863 divided by VA(alveolar ventilation per minute)




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16. 4080mL/min




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17. 13L/minute




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18. 2.88 L




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19. PV = nRT




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20. 200mL/min





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