10. Ask for a Package Deal. Try renting all the tuxedos needed for your wedding together to see if you can get a discount for multiple rentals. Ask if there are wedding packages for renting the groomâs, the groomsmenâs, and the fathersâ tuxedos.
A Venturi mask can deliver oxygen concentrations from 24% to 60% with flow rates from 4 to 12 L/min. Because this device delivers a precise oxygen concentration and carbon dioxide buildup is minimal, it is commonly used for patients who have COPD. Humidification is usually unnecessary with this device.
35-45 mm Hg --- The normal PaCO2 (arterial partial pressure of carbon dioxide in the blood) is 40mmHg. There is a normal range, which is 35-45mmHg. For those with COPD 60 or â¦ below is good. + 42 others found this useful.