TCU CRNA Science NA Test 2 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What is viscosity? - CORRECT ANSWER - *The physical characteristic that unifies gases
and liquids
*Refers to their resistance to the rate of deformation
At what temperature do liquids boil? - CORRECT ANSWER - Liquids boil at any
temperature at which the vapor pressure is equal to or exceeds atmospheric pressure.
What is the clinical importance of the alveolar gas equation? - CORRECT ANSWER -
PAO2 = FIO2 (PATM - PH20) - PACO2 / respiratory quotient
0.21 (760 - 47mmHg) - 40 mmHg / 0.8
0.21 (713) - 50
149.73 - 50
99.73 mmHg >> alveolar O2
*Vapor pressure is independent of ATM, it is only contingent on temperature. However, an
increase or decrease in the ATM has a direct effect on the PaO2 in the alveoli*
What measures fluid pressure that is no greater than one atmosphere? - CORRECT
ANSWER - manometer
what unit of pressure utilized to measure high gas pressures such as gas pipelines? - CORRECT
ANSWER - Bar
_____________ is any pressure above atmospheric pressure - CORRECT ANSWER -
Gauge pressure
, What type of gauges are found on gas cylinders and pipeline supplies ? - CORRECT
ANSWER - Bourdon gauges
What type of gauges are used to measure low pressures such as blood pressure ? - CORRECT
ANSWER - Aneroid gauges
What does 1mmHg= ? - CORRECT ANSWER - 1.36cmH20
What is cmH20 primarily used to measure? - CORRECT ANSWER - Low pressures for
example chest tube
Density of water is? - CORRECT ANSWER - 1 which is directly proportional to height
What happens to your "blood pressure reading" when you raise the transducer? - CORRECT
ANSWER - Get a Falsely low BP
What happens you lower transducer to "BP" - CORRECT ANSWER - falsely hight BP
Normal venous pressure at the capillary level is approximately - CORRECT ANSWER -
27mmHg
Law of Laplace applies to cylinders, What is the formula? - CORRECT ANSWER -
Cylinders
Tension=P(pressure of liquid) x r(radius)
As a structure expands its radius, wall tension ____ - CORRECT ANSWER - increases
Law of Laplace applied to spheres, what is the formula - CORRECT ANSWER - 2T=Pr/H
H=wall thickness
ACTUAL Exam Questions and CORRECT
Answers
What is viscosity? - CORRECT ANSWER - *The physical characteristic that unifies gases
and liquids
*Refers to their resistance to the rate of deformation
At what temperature do liquids boil? - CORRECT ANSWER - Liquids boil at any
temperature at which the vapor pressure is equal to or exceeds atmospheric pressure.
What is the clinical importance of the alveolar gas equation? - CORRECT ANSWER -
PAO2 = FIO2 (PATM - PH20) - PACO2 / respiratory quotient
0.21 (760 - 47mmHg) - 40 mmHg / 0.8
0.21 (713) - 50
149.73 - 50
99.73 mmHg >> alveolar O2
*Vapor pressure is independent of ATM, it is only contingent on temperature. However, an
increase or decrease in the ATM has a direct effect on the PaO2 in the alveoli*
What measures fluid pressure that is no greater than one atmosphere? - CORRECT
ANSWER - manometer
what unit of pressure utilized to measure high gas pressures such as gas pipelines? - CORRECT
ANSWER - Bar
_____________ is any pressure above atmospheric pressure - CORRECT ANSWER -
Gauge pressure
, What type of gauges are found on gas cylinders and pipeline supplies ? - CORRECT
ANSWER - Bourdon gauges
What type of gauges are used to measure low pressures such as blood pressure ? - CORRECT
ANSWER - Aneroid gauges
What does 1mmHg= ? - CORRECT ANSWER - 1.36cmH20
What is cmH20 primarily used to measure? - CORRECT ANSWER - Low pressures for
example chest tube
Density of water is? - CORRECT ANSWER - 1 which is directly proportional to height
What happens to your "blood pressure reading" when you raise the transducer? - CORRECT
ANSWER - Get a Falsely low BP
What happens you lower transducer to "BP" - CORRECT ANSWER - falsely hight BP
Normal venous pressure at the capillary level is approximately - CORRECT ANSWER -
27mmHg
Law of Laplace applies to cylinders, What is the formula? - CORRECT ANSWER -
Cylinders
Tension=P(pressure of liquid) x r(radius)
As a structure expands its radius, wall tension ____ - CORRECT ANSWER - increases
Law of Laplace applied to spheres, what is the formula - CORRECT ANSWER - 2T=Pr/H
H=wall thickness
