Respiratory Care TEST 1|31 Questions with Verified Answers
Credentialing Process - CORRECT ANSWER Obtain a bachelors or an associates degree take the
... [Show More] 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 [Show Less]