CFRN |609 questions | with correct answers
What is atmospheric pressure at sea level? - Answer 760mmHg (or 760 torr) T/F: Atmospheric pressure and barometric pressure are essentially the same thing, just using a different unit of measure. - Answer True (think measuring same item in inches and then measuring it in cm) How many atmospheres (or ATMs) are at sea level? - Answer 1 atmosphere/ATM at sea level What is barometric pressure? - Answer The combined weight of all atmospheric gases creating a force upon the surface of the earth. What is barometric pressure at sea level? - Answer 29.92Hg According to Boyle's law, as altitude increases, barometric pressure ____, and gas in an enclosed space ____ as long as temperature remains ____. - Answer decreases, expands, constant T/F: As altitude increases, the measurement of Atmospheres (ATMs) also increases. - Answer False - decreases Quick math for calculating drop in ATMs until appx 5000/6000 feet altitude is that for every ____ increase in altitude, ATM goes down 5%. - Answer 1500 feet What do the values of P1V1=P2V2 for Boyles law mean? - Answer P1 = starting ATM at the lowest altitude V1 = starting volume (ETT cuff, epigastrum, etc.)
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