• Shuffle
Toggle On
Toggle Off
• Alphabetize
Toggle On
Toggle Off
• Front First
Toggle On
Toggle Off
• Both Sides
Toggle On
Toggle Off
Toggle On
Toggle Off
Front

### How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

Play button

Play button

Progress

1/162

Click to flip

### 162 Cards in this Set

• Front
• Back
 Can provide an decrease in gas density & an increase in gas flow Heliox gas mixture Law that states the rate of gas diffusion is inversely proportional to the weight of gas. Grahams Law increase rate=decrease weight=increase solubility barometric pressure in denver? 630 mmHg barometric pressure at sealevel? 760 mmHg TEMP CONVERSION Kelvin to Celsius C= K-273 TEMP CONVERSION Celsius to Kelvin K = C + 273 TEMP CONVERSION Celsius to Fahrenheit F= [9/5(C)]+32 TEMP CONVERSION Fahrenheit to Celsius C= 5/9(F-32) def. motion, heat, capacity to do work Energy formula Force X distance Work 2 forms of energy potential energy kinetic def positioning with potential for kinetic energy potential energy kinetic motion 3 states of matter solid,liquid,gas def. matter cannot be created or destroyed,but can be changed from one form to another conservation of energy def. amount of matter Mass density X volume Mass def. gravitational attraction between earth and matter Weight def. ratio of mass to volume Density mass/volume Density the air we breath has what percent oxygen and nitrogen? 21% oxygen 79% nitrogen what is the percentage of oxygen in the air at 10,000 feet? 21% 21% everywhere def. force per unit of area pressure formula F/A or force/area pressure smaller area would result in more or less pressure?? hint: high heel vs flat shoe more def pressure in room ambient barometric pressure measures? atmospheric pressure heat makes molecules move faster or slower?? faster def the point where there is the minimum possible total energy absolute zero Transfer of thermal energy occurs by?(3) convection,conduction,radiation transfer of energy cause by motion of molecules (heat moving from high heat to low heat) convection tranfer of energy from molecule to molecule conduction (metals have high conduction properties) transfer of energy: emission of heat without movement radiation which take up more room liquids or gas? and why? gas, because molecules of gas are further apart than a liquid (less dense then liquid) what are not bound together by forces at all but fly freely in space? molecules of gas 1 psi = __ mmHg=__cmH2O 52 mmHg=70 cmH2O mmHg stands for? milimeters of mercury it is a unit of pressure cmH2O stands for? centimeters of water def determining pressures during mechanical ventilation or in water supply networks centimeters of water torr is? unit of pressure 1mmHg=__cmH2O 1.36 they exert forces on each other only when they collide? gas molecules when they collide they bounce from each other & continue freely until next collision? gas molecules gases consist of molecules in continuous random motion Kinetic Theory of Gases it is assumed the vol of the molecules is negligible compared to the vol of the container Kinetic Theory of Gases collisions between molecules are elastic and have no transference of energy Kinetic theory of gases the kinetic activity of the molecules is directly proportional to the temp Kinetic theory of gases increase kinetic activity will result in an ______in the velocity of particles resulting in an _______ in the pressure of the container?? increase or decrease increase and increase will travel in a straight path till they collide gas molecules haphazard irregular motion that never ceases brownian movement barometic pressue is messured by?? a barometer vol of different gases contain the same # of particles if both gases are the same temp and pressure Avagado's Law ________in gas density,increase in gas flow decrease (helium oxygen density rate at which pressure moves from an area of greater pressure to an area of lower pressure pressure gradient greater pressure=greater____activity kinetic rate of gas flow factors: (2) difference of pressure, size of openings between two areas this law can be used to predict specific changes of temp, pressure and vol Ideal gas law P1xV1/T1=P2xV2/T2 Ideal gas law temp remains constant, pressure will vary inversely to volume? Boyles Law is boyles law direct or inverse? inverse P1xV1=P2xV2 BOYLES LAW OF TEMP BOYLES LAW OF TEMP formula reminder boyle potatoes & veggies for 1, boyle potatoes & veggies for 2 pressure remains constant, volume and temp will vary directly Charles Law V1/T1=V2/T2 Charles Law Charles Law reminder sayings sounds like charo charo pressure, pressure,pressure charo was on TV volume remains constant, pressure and temperature will vary directly Gay-Lussac's Law P1/T1=P2/T2 Gay-Lussac's Law Gay-Lussac's Law reminder grocery sac has same volume don't forget the Toliet Paper The pressure of any gas mixture is equal to the sum of pressure exerted by the individual gases Dalton's Law 100% total=P1+P2+P3...... Daltons Law Dalton reminder dAltons law A=Arithetic Add All the partial pressure =100% 3 questions to solve gas law problems what's constant? Do I need to convert to Kelvin? Are my units the same? the cross sectional area of a tube thru which a fluid is flowing & velocity of the flowing fluid when the flow rate is constant Law of Continuity cross sectional area and velocity are inversely related Law of Continuity distance/time velocity as the cross sectional area decreases for a given flow rate the velocity of the flowing gas increases & vice versa Law of Continuity A1xV1=A2xV2 A=cross sectional Area of the tube V=average velocity of the flowing fluid Law of Continuity ____the cross sectional area of the tube,____the velocity of the fluid. The flow rate remains_______. decreasing, increases, constant Law of continuity speed with which movement between two points occurs miles/hrs or cm/sec Velocity volume passing a single point per unit of time liters/min or liters/sec Flow velocity will increase with constriction, pressue will drop, decreases pressure on lateral wall Bernoulli's Principle the additon of a tube gradually increasing in diameter, not exceeding 15 degrees in the direction of flow from the the jet orfice, will restore the lateral pressure of the gas toward prerestriction pressure. Venturi Principle cross sectional change is require to change velocity Venturi Principle def. upward force is equal to the weight of fluid displaced Buoyancy volume/time flow when a liquid in a small tube tends to move upward againt gravity capillary action type of flow: smooth, even,non tumbling. A cone front Laminar Flow type of flow: resistance & move at a grat velocity than the molecules at the sides Laminar Flow type of flow: rough, tumbling,uneven, blunt front turbulent flow type of flow: all molecules come in contact with the walls of the vessels turbulent flow type of flow: combination of areas of laminar flow & turblent flow tracheobroncial flow type of flow: thought to be the type of low maintence throughout the respiratory system tracheobroncial flow used to indicate whether flow through a system is laminar or turbulent Reynolds Number lrg# indicates turbulent sm # indicates lamilar the content or actual weight of water present in a given volume of gas Absolute Humidity how is absolute humidity expressed terms of the weight of water in the vol of gas (miligrams per liter (mg/L) or watervapor pressure (PH2O) maximum absolute humidity at 37 degrees Celcius which is body temp. What is the water vapor content and partial pressure? 43.8mg/L partial pressure of 47mmHg Water in the gases state humidity behaves similar way to gas molecules. Molecules exert a pressure and are in constarnt random motion humidity maximum absolute humidity or capacity potiential humidity (capacity) it is the weight of H2O vapor or the PH2O in a saturated gas potiential humidity PH2O is? water vapor pressue the higher the temp, the___water a volume of gas can hold and the_____PH2O higher, higher the content or actual weight of water present in a given vol of gas absolute humidity (actual) expressed in terms of the weight in water absolute humidity (actual) actual humidity/capacity at temp AH/PH relative humidity comparison of the absolute amt of water a given volume of gas (Absolute humidity) to the amt of water given vol of gas can hold at a given temp (capacity) relative humidity when the humidity content equals the capacity the gas is?? Saturated or the Relative Humidity is 100% used to indicate whether flow through a system is laminar or turbulent Reynolds Number lrg# indicates turbulent sm # indicates lamilar the content or actual weight of water present in a given volume of gas Absolute Humidity how is absolute humidity expressed terms of the weight of water in the vol of gas (miligrams per liter (mg/L) or watervapor pressure (PH2O) maximum absolute humidity at 37 degrees Celcius which is body temp. What is the water vapor content and partial pressure? 43.8mg/L partial pressure of 47mmHg Water in the gases state humidity behaves similar way to gas molecules. Molecules exert a pressure and are in constarnt random motion humidity maximum absolute humidity or capacity potiential humidity (capacity) it is the weight of H2O vapor or the PH2O in a saturated gas potiential humidity PH2O is? water vapor pressue the higher the temp, the___water a volume of gas can hold and the_____PH2O higher, higher the content or actual weight of water present in a given vol of gas absolute humidity (actual) expressed in terms of the weight in water absolute humidity (actual) actual humidity/capacity at temp AH/PH relative humidity comparison of athe actual or absolute amt of water a given vol of gas (Absolute humidity) to the amt of water given vol of gas can hold at a given temp (capacity) relative humidity when the humidity content equals the capacity the gas is?? Saturated or the Relative Humidity is 100% content/capacity @ 37 C body humidity percentage the difference between the inspired absolute humidity and the water vapor content in alveoloar air humidity deficit the difference between inspired airs water content and the water content of a gas at body temp and pressure humidity deficit PAO2? partial pressure of oxygen the > the mass & velocity of a prticle the > the inertia tha keepts the particle in motion inertial impaction happens w/ particles 5 micrometers & larger(not likely to make it past the upper airway anyway) & for particles less than 1 micrometer (so small that they will probably just be exhaled) inertial impaction turbulent flow, complex passageways,bifurcation of the airways & high inspiratory flows increase th impaction of particles larger than 2 micrometers in the larger airways inertial impaction occurs when aerosol particles settle out of suspension because of gravity Gravitational sedimentation the > the mass of the particle , the faster it settles Gravitational sedimentation physical processes where molecules move from area of high concentration to area of lower concentration Diffusion kenetic energy is the driving force behind this?? Diffusion rate of diffusion is directly proportional to... concentration (or pressure),gradent, the cross sectional area aval. for diffusion and temp rate of diffusion is inversely proportional to... the distance the particle must travel & to the molecular weight of the particle increase gradient, increase area, increase temp = increase rate of diffusion particles suspended in air aerosol therapy humidify inspired gas, deliver medications & or improve mobilization & thus elimination of secretions goal of aerosol therapy (Pb mmHg-47mmHg)X FIO2 - PaCO2 X 1.25 Alveolar air equation states that the rate of gas transfer across a sheet of tissue is directly proportional (or corresponding) to the surface area of the tissue, to the diffusion constants,& to the difference in partial pressure of gas between the two sides of tissue,& is inversly proportional to the thickness of the tissue Ficks Law increase rate = increased area Ficks Law increased rate = increased gradient Ficks Law the rate of change with respect to distance of a variable quantity, as temperature or pressure, in the direction of maximum change. gradient decrease rate = thickness of aveolar capillary membrane Ficks Law the amt of a gas that dissolves in a liquid at a given temp is proportional to the partial pressure of the gas. Henry's Law corresponding proportional The amt of that can be dissolved my 1 mL of a given liquid at standard pressure (760mmHg)& a specified temp is known as the "solubilty coefficient" of the liquid Henry's Law increase pressure=increase solubility Henry's Law reversed in position, order, direction. terms of which an increase in one results in a decrease in another Inverse volume/time flow area--decreased alveolar surface area, decreases the ability of oxygen to enter teh pulmonary capillary blood clinical application of ficks law pressure-- decreased alveolar oxygen pressure reduces the diffusion of oxygen into the pulmonary capillary blood clinical application of ficks law thickness--increased alveolar tissue thickness reduces the oxygen across the alveolar capillary membrane clinical application of ficks law The injection of fluid into a blood vessel in order to reach an organ or tissues, usually to supply nutrients and oxygen perfusion forces that must be overcome to move air: (4) 1.resistance of the airway 2.overcome the elastic forces of the lung tissue 3. tissue resistance 4.surface tension force exerted by like molecules at the surface of a liquid is called this surface tension this law supports the idea that the size of the airway is directly realated to the gas flow & inversely related to the work of breathing Poiseulles Law 1 psi=52 mmHg=__cmH2O 70 cmH2O 1mmHg=__cmH2O 1.36 cmH2O the process where matter in it's liquid from is changed into a gas vaporization conversion between solid & gas phases without going to liquid state sublimation (example:dry ice) body temp in fahrenheit? 98.6 degrees F