CRNA Boards Practice-Exam TEST MOD 010 with Revised Correct Q & A 2023/2024 ATESTED
What is responsible for a gases vapor pressure? correct answers
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From greatest to least, what are the vapor pressures of the inhaled anesthetic agents? correct answers Nitrous Oxide - XDesflurane - 669 mmHgHalothane - 244 mmHgIsoflurane - 240 mmHgEnflurane - 172 mmHgSevoflurane - 170 mmHDenise Has Intercourse Every Sunday
What is Dalton's Law of Partial Pressures?Why do we care? correct answers The total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of each individual gas.This means you can calculate the final percent concentration of a mixture of gas if you know the pressure of Oxygen at sea level and the partial pressure of the other gases.
What is the partial pressure of oxygen at sea level? correct answers 14.7 PSI760 mm Hg760 torr1 atm101 kPa
If isoflurane is added to a flask of oxygen what is the percentage concentration of both isoflurane and oxygen? correct answers Oxygen Partial Pressure = 760Isoflurane Partial Pressure = 240After adding Isoflurane to the flask, the partial pressure of oxygen is now 520 mmHg.% Oxygen = (520/760) = 69%% Isoflurane = (240/760) = 31%It really is just that easy.
If you add Desflurane to a flask of Oxygen, what is the percentage concentration of both Desflurane and oxygen? correct answers Oxygen Partial Pressure = 760 mmHgDesflurane Partial Pressure = 669 mmHgAfter adding Isoflurane to the flask, the partial pressure of oxygen is now 91 mmHg% Oxygen = (91 / 760) = 11%% Desflurane = (669 / 760) = 89%It really is just that easy.
What happens if a volatile agent with a higher vapor pressure is added to a vaporizer calibrated for a lower vapor pressure? correct answers The concentration delivered will be higher than normal.Higher Lower High - HLH
What happens if a volatile agent with a lower vapor pressure is added to a vaporizer calibrated for a higher vapor pressure? correct answers The concentration delivered will be lower than normal.Lower Higher Low - LHL
What is unique about the deslflurane vaporizer? correct answers It is heated to approxmiately 39 degrees celsius which creates a vapor pressure of nearly 1500 mmHg (two atmospheres).This drives" desflurane to the gas outlet"
1 mmHg = (X) cm H2O1 atm = (X) mmHg = (X) psi = (X) kPa = (X) bar1 psi = (X) mmHg correct answers 1 mmHg = 1.36 cm H2O1 atm = 760 mmHg = 14.7 psi = 101 kPa = 1 bar1 psi = 54 mmHg
How do Bourdon gauges work?What does it mean when the Bourdon gauge on a cylinder reads zero? correct answers They measure high (cylinder) pressure relative to atmospheric pressure.That the cylinder pressure is equal to atmospheric pressure and there is no 'drive' to the gas [Show Less]