Respiratory Care TEST 1|31 Questions with Verified Answers,100% CORRECT

Respiratory Care TEST 1|31 Questions with Verified Answers Credentialing Process - CORRECT ANSWER 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 - CORRECT ANSWER 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 - CORRECT ANSWER ATPS-ambient temperature pressure saturated (chem & physics lab) 0c/760mmHg / dry (0mg/L) body temperature - CORRECT ANSWER BTPS- Body temp pressure saturated body temp (37c) current PB/ water vapor pressure (43.8mg/L) Standard Temperature - CORRECT ANSWER STPD-standard temperature pressure dry room temp current PB current water vapor pressure (mg/L) Temp Conversions - CORRECT ANSWER 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 - CORRECT ANSWER Carl Wilhelm Scheele Discovered Oxygen Laplaces Law - CORRECT ANSWER 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 - CORRECT ANSWER %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 - CORRECT ANSWER Liquid pressure depends only on the height (h) and not on the shape of the vessel or the total volume of liquid. Absolute Humidity - CORRECT ANSWER The actual weight of all water vapor suspended in a gas. normal AH of lungs is 43.8 MG/L Relative Humidity - CORRECT ANSWER 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 - CORRECT ANSWER 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 - CORRECT ANSWER 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 - CORRECT ANSWER conduction / radiation / convection / evaporation reynolds number - CORRECT ANSWER NR>2000, flow is turbulent NR<2000, flow is laminar physical laws of solids / liquids / gases - CORRECT ANSWER 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 - CORRECT ANSWER attraction between like molecules Adhesion - CORRECT ANSWER attraction between different molecules Names and purposes of current professional national and state RC organizations - CORRECT ANSWER 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 - CORRECT ANSWER 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 - CORRECT ANSWER Uncorrected: PIO2 = PB x .21 Corrected: PIO2 = (PB-47torr) x .21 Water vapor takes up space, thus amount of O2 decreases. Laminar Flow - CORRECT ANSWER flow is parallel Turbulent Flow - CORRECT ANSWER Moving so fast it twirls transitional flow - CORRECT ANSWER a combination of both laminar and turbulent henrys law - CORRECT ANSWER predicts how much a given gas will dissolve in a liquid. think liquid 02 CRT - CORRECT ANSWER CERTIFIED RESPIRATORY therapist RRT - CORRECT ANSWER registered respiratory therapist RPFT - CORRECT ANSWER registered pulmonary function technologist nps - CORRECT ANSWER neonatal pediatric specialist accs - CORRECT ANSWER adult critical care specialist