chemphys
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| one mole of ideal gas occupies 22.4 liters at 0C and 1 atm/ 6.022x10 23rd | avogadro
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| the lateral pressure of fluid flowing through a constricted segment of tubing is decreased | bernoulli
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| gas pressure is inversely proportional to gas volume at constant temp | boyles
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| volume increases when temp increases if pressure is constant | charles
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| gas pressure increases if temperature increases and volume is constant | gay-lussac
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| twice as much o2 will dissolve in arterial blood if the alveolar partial pressure of o2 is doubled | henry
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| a principle for calculating cardiac output from o2 uptake or co2 elimination and o2 and co2 concentrations in arterial and venous blood | fick principle
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| tension in the wall of a blood vessel is proportional to the radius | laplace
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| explained how pressure tube radius tube length and fluid viscosity contribute to laminar flow | poiseuille
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| concentration effect | ficks
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| a # that reveals whether or not flow is laminar or turbulent | reynolds
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| what volume will 2 moles of gas occupy at standard temp (0 degree C) and 1 atm. whose law | 44.8 l, avogadro
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| what is the partial pressure of a gas if it s concentration is 5% | 38mm hg
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| if gas exerts a partial pressure of 15mm hg what is its concen in % | 2%
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| the law that relates a volume of gas released into the atm from an o2 tank | boyle
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| which pulmonary func test uses boyle | plethysmography for determination of frc
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| sevoflurane is added to a flask sitting on a table, what is the conc of sevo above the liquid | 22%
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| if the flow of o2 from an e-size tank is 5 L per minut, the tank will last | 2 hr/ 660/5=132min/2hr
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| full e tank stats | service capacity=1900psi
volume of o2=660
2200psi evolves 660
half full 1100 psi evolves 330
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| with a 6 liter/min flow and a mixture of 70% n2o and 30% o2 what is the flow of n2o/min | 4.2L
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| when the pressure gauge on a n2o tank begins to fall rapidly the | the tank no longer carries n2o liquid form
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| if flow is laminar and the radius of a tube is tripled the flow thru the tube will increase | 81fold
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| when halothane is added to a flask containing 100% o2 the new concen of o2 will be | 68%
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| the cylinder of n2o cools after it is turned on, what explains the cooling | joule-thompson effect
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| tension in the blood vessel wall will be lowest in | capillary
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| during diastole tension in the left vent wall increases, what explains this | law of laplace
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| when you put an endotracheal tube in an autoclave, the cuff expands, whose law | charles
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| when the length of an iv needle is doubled, what happens to the flow from the iv bag, what law | flow is halved, poiseuille
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| how much co2 is dissolved in arterial blood when paco2 is 70mm hg | .067 x 70=4.69 ml co2/100ml blood
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| what law explains atelectasis in the pt with ards | laplace
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| if map is 100mm hg, cvp is 10mm hg, and co is 4.5 l/min, the resistance to flow thru the svr in dynes cm-5sec is | 1600/ svr=80x(100-10)/4.5
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| when flow is turbulent, the resistance to flow is dependent on what property of the fluid | density
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| what important changes occur when laminar flow changes to turbulent flow | resistance increases
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| a bourdon gauge reads 100psi, what is the pressure inside the cylinder, not 14.5 psi = 1atm. | 100 psi
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| if flow is laminar resistance to flow thru a cylindrical tube will increase if | length of tube is increased
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| what are the parameters used to calculate the reynolds number | velocity, viscosity of fluid and diameter of tube
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| if flow is laminar, what happens to flow when the pressure gradient changes from 100 to 150mm hg | increases 1.5 times
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| laminar flow becomes turbulent when reynolds number exceeds | 2000
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| nebulizers are ? tubes | venturi
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| as an e cylinder of o2 empties, ice crystals form near the outlet, this is explained by what law | joule-thompson
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| what volume will be occupied by 16 grams (1/2 mole) of o2 at 1atm and 0c | 11.2 L
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| when n2o is turned on gas bubbles in the body expand, what law | ficks
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| what is partial pressure of isoflurane when the concen delevered to the pt is 1.5% | 11.4 760x1.5=1140 1140/100=11.4
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| what cond will optimize the amount of gas dissolved in a liquid | increased partial pressure, decreased temp
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| if the partial pressure of a gas over a liquid doubles, the amount of gas dissolved in the liquid | doubles
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| which gas can liquify at room temp | n2o
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| the rate of diffusion of a gas across the alveolar capillary membrane is inversely proportional to the | thickness of the membrane
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| the factors that determine the amount of gas diffusing across the alveolar capillary membrane are described by | ficks law
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| n2 and n2o are diffusing thru the air. n2 will diffuse how faster than n2o, whose law | grahams law
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| the pressure in a cylinder of o2 decreases as it empties what law | ideal
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| when a full e cylinder of o2 is brought from the loading dock where the temp is 40c to the operating room where the temp is set at 21c, the pressure in the cylinder will increase or decrease, law? | decreases, gay lussacs
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| the partial pressure of o2 in the arterial blood increases from 100 to 600mm hg, the amount of dissolved o2 increases by how much | 1.5ml o2/100ml blood
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| what two parameters are used to calculate resistance to flow thru a tube | pressure gradient and flow
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| in a venturi tube, the lateral pressure upstream from the narrowing is | greater than the narrowed region
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| the joule-thomson effect describes the decrease in temp when a | gas exiting a compressed cylinder expands freely
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| what law permits calculation of resistance to flow thru a tube | ohms
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| the jet ventilator operates on | venturi
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| a mechanism used to reduce the pressure of a gas as it rises from a compressed gas cylinder to a usable, nearly constant pressure is a | regulator
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| identical syringes are fitted with needles of different bores, the internal diamenters of the needles are in the ration of 1:2, the same force is applied to the plungers, the volume ejected in unit time is | 16 times greater thru the large needle
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| the density of a gas | determines its flow thru an orifice
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| most of the heat loss thru the body occurs by | radiation
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| which principle is utilized in delivery of a gas thru a side are port | bernoulli
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| the partial pressure of o2 at 1atm is | 159mm hg
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| if halothane is added to a flask sitting on a lab bench containing 100% o2, what will be the resulting pp of o2 in the gas above the halothane liquid | 760-243=517
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