Respiratory Care TEST 1 100% correct answers already graded A+

Credentialing Process Obtain a bachelors or an associates degree take the nbrc exam -Two exams are required for the RRT credential -one exam required for the CRT credential. -Two passing scores on Entry-level exam used to evaluate competency. -Lower passing score certified respiratory therapist (CRT) -High passing score completion of RRT written exam and eligible to sit for clinical simulation exam (CSE) Laws of Thermodynamics 1st and 2nd 1st- Energy can be neither created nor destroyed, only transformed. (generic) 2nd- In any mechanical process there will be a decrease in the total energy available to do work. ambient temperature ATPS-ambient temperature pressure saturated (chem & physics lab) 0c/760mmHg / dry (0mg/L) body temperature BTPS- Body temp pressure saturated body temp (37c) current PB/ water vapor pressure (43.8mg/L) Standard Temperature STPD-standard temperature pressure dry room temp current PB current water vapor pressure (mg/L) Temp Conversions k=c+273 / c=k-273 f=(c x 1.8=32) / c=(f-32) / 1.8 f to k = (f+460)/1.8 / k to f=((k-273)) x 1.8+32 Important Historical Figures Carl Wilhelm Scheele Discovered Oxygen Laplaces Law principle of physics that the tension on the wall of a sphere is the product of the pressure times the radius of the chamber, and the tension is inversely related to the thickness of the wall. P= 2ST/R ST= surface tension of the liquid R=radius P=pressure inside the bubble Body Humidity %BH = (AH/43.8) x 100 capacity @ 37Cel = 43.8 MG/L Humidity Deficit- Hd=43.8mg/L content (water vapor capacity @ 37c = 43.8 mg/L Pascal's Principle Liquid pressure depends only on the height (h) and not on the shape of the vessel or the total volume of liquid. Absolute Humidity The actual weight of all water vapor suspended in a gas. normal AH of lungs is 43.8 MG/L Relative Humidity the relative amount of water vapor that a gas could hold at a temperature vs. how much its actually holding RH=(AH/SAT CAPACITY)X100 poiseuille's law if the diameter of a tube is cut in half, the amount of driving pressure to keep flow constant through that tube must increase 16 times 501/2=16x graham's law law stating that the rate of diffusion of a gas through a liquid (or the alveolarcapillary membrane) is directly proportional to its solubility coefficient and inversely proportional to the square root of its density. heat and energy transfer conduction / radiation / convection / evaporation reynolds number NR>2000, flow is turbulent NR<2000, flow is laminar physical laws of solids / liquids / gases Solid- High degree of internal order, very limited movement of molecules/atoms, strong Van der Waals forces Liquids- Take the shape of their container, molecules move with ease, weaker Van der Waals forces Gases - Very weak Van der Waals forces, no boundaries, and molecules exhibit rapid, random motion. Cohesion attraction between like molecules Adhesion attraction between different molecules Names and purposes of current professional national and state RC organizations AARC the american association for respiratory care - they lobby for the profession nationally TSRC- Texas society for respiratory care - they educate the public about the profession daltons law Ptotal = P1+P2+P3 (think pizza!) Def: the total pressure of a mixture of gases must equal the sum of the partial pressures of all component gases. Corrected/uncorrected barometric pressure for water vapor pressure Uncorrected: PIO2 = PB x .21 Corrected: PIO2 = (PB-47torr) x .21 Water vapor takes up space, thus amount of O2 decreases. Laminar Flow flow is parallel Turbulent Flow Moving so fast it twirls transitional flow a combination of both laminar and turbulent henrys law predicts how much a given gas will dissolve in a liquid. think liquid 02 CRT CERTIFIED RESPIRATORY therapist RRT registered respiratory therapist RPFT registered pulmonary function technologist nps neonatal pediatric specialist