# Charles Law states: volume and temperature are directly proportional when pressure remains constant 2.) Boyle's Law states:

1.) Charles Law states: volume and temperature are directly proportional when pressure remains constant 2.) Boyle’s Law states:_pressure and volume are inversely related when temperature remains constant 3.) What is the relative humidity of inspired gas in a person’s airway if the water vapor content breathed in is 30 mg/L at normal body temperature? 30/44×100=68% 4.) Calculate the FEV1%. FVC is 6L and FEV1 is 4L 4/6=0.67 or 67% 5.) True or False: Vital Capacity is Total Lung Capacity – Residual Volume 6.) Pressure inside the container is 40 cm H20 and the volume at that pressure is 1L. The pressure inside the container is increased to 70 cm H20. If the temperature remains constant, what is the new volume in the container? 40 x 1/70-0.571L 7.) Calculate the target Vt to achieve a PaCO2 of 40 mm Hg. Patient on full ventilator support has a CO2 of 30 mm Hg and Vt of 600 ml. 30/40=x/0.6 x=0.45 L or 450 ml 8.) Calculate the target RR to achieve a PaCO2 of 40 mm Hg. Patient on full ventilator support has a CO2 of 50 mm Hg and RR of 10. 50/40=w/10 x=12.5 9.) The volume in the container is 0.5L and the temperature is 0 degrees C. Calculate the new volume in the container if the temperature is decreased to -53 degrees C when the pressure in the container remains constant. 0.5 x 220/273=0.403L 10.) Patient has an IBW of 70 kg. The patient is on full ventilator support. Vt is set at 700 ml and the RR is set at 15. The PaCO2 is 30 cm H20. What adjustment needs to be made and calculate the new value that needs to be set on the ventilator (70×6-420ml/70×8=560ml) 30/40=x/.7 x=0.525L

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