RES240: Review Exam UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
The term used to describe the tendency of a structure to return to its original form after being
stretched or acted on by an outside force us which of the following? - CORRECT
ANSWER Elastance
Calculate the static compliance for an intubated patient with a VT of 400ml and a plateau
pressure 15 cm with a PEEP of 5 cm - CORRECT ANSWER 40 ml/cmh20
Which of the following conditions causes pulmonary compliance to increase? - CORRECT
ANSWER Emphysema
The condition that is associated with an increase in airway resistance is which of the
following? - CORRECT ANSWER Bronchospasm
What is a normal tidal volume for a 6 foot male? - CORRECT ANSWER 500ml
Calculate the effective static compliance (Cs) given the following information about a patient
receiving mechanical ventilation: peak inspiratory pressure (PIP) is 56 cm H2O, plateau
pressure (Pplateau) is 40 cm H2O, exhaled tidal volume (VT) is 650 mL, and positive-end
expiratory pressure (PEEP) is 10 cm H2O. - CORRECT ANSWER 21.66 mL/cm H2O
The body's mechanism for conducting air in and out of the lungs is known as which of the
following? - CORRECT ANSWER Ventilation
Which of the following are involved in external respiration - CORRECT
ANSWER Alveoli and pulmonary capillaries
, An increase in peak inspiratory pressure (PIP) without an increase in plateau pressure
(Pplateau) is associated with which of the following? - CORRECT ANSWER Increase
in airway resistance
A patient has a compliance of 65 ml/cm h20, two hours later the compliance is 30 ml/cmH20.
Describe the condition of the lungs. - CORRECT ANSWER Lungs are stiffer
Gas flows due to - CORRECT ANSWER Pressure gradient
Which of the following statement is true concerning plateau pressure? - CORRECT
ANSWER It is used to measure alveolar pressure
If the patient has emphysema they will have a - CORRECT ANSWER A long time
constant
The ability of the lung to expand is known as ______________ - CORRECT
ANSWER Lung compliance
If the diameter of the airway is halved, the amount of pressure it takes to keep that same flow
will increase. This best relates to which of the following - CORRECT
ANSWER Poiseuille's Law
What law do we primarily use when adding peep? - CORRECT ANSWER Fick's
If a patient had a tidal volume(VT) of 650 ml, respiratory rate of 14 breaths / min.,
Physiologic deadspace of 175 ml, what would be this patient's actual alveolar ventilation
(VA)? - CORRECT ANSWER 6.7 L / mim
How many time constants are necessary for 95% of the tidal volume (VT) to be delivered
from a mechanical ventilator? - CORRECT ANSWER 3
ACTUAL QUESTIONS AND CORRECT
ANSWERS
The term used to describe the tendency of a structure to return to its original form after being
stretched or acted on by an outside force us which of the following? - CORRECT
ANSWER Elastance
Calculate the static compliance for an intubated patient with a VT of 400ml and a plateau
pressure 15 cm with a PEEP of 5 cm - CORRECT ANSWER 40 ml/cmh20
Which of the following conditions causes pulmonary compliance to increase? - CORRECT
ANSWER Emphysema
The condition that is associated with an increase in airway resistance is which of the
following? - CORRECT ANSWER Bronchospasm
What is a normal tidal volume for a 6 foot male? - CORRECT ANSWER 500ml
Calculate the effective static compliance (Cs) given the following information about a patient
receiving mechanical ventilation: peak inspiratory pressure (PIP) is 56 cm H2O, plateau
pressure (Pplateau) is 40 cm H2O, exhaled tidal volume (VT) is 650 mL, and positive-end
expiratory pressure (PEEP) is 10 cm H2O. - CORRECT ANSWER 21.66 mL/cm H2O
The body's mechanism for conducting air in and out of the lungs is known as which of the
following? - CORRECT ANSWER Ventilation
Which of the following are involved in external respiration - CORRECT
ANSWER Alveoli and pulmonary capillaries
, An increase in peak inspiratory pressure (PIP) without an increase in plateau pressure
(Pplateau) is associated with which of the following? - CORRECT ANSWER Increase
in airway resistance
A patient has a compliance of 65 ml/cm h20, two hours later the compliance is 30 ml/cmH20.
Describe the condition of the lungs. - CORRECT ANSWER Lungs are stiffer
Gas flows due to - CORRECT ANSWER Pressure gradient
Which of the following statement is true concerning plateau pressure? - CORRECT
ANSWER It is used to measure alveolar pressure
If the patient has emphysema they will have a - CORRECT ANSWER A long time
constant
The ability of the lung to expand is known as ______________ - CORRECT
ANSWER Lung compliance
If the diameter of the airway is halved, the amount of pressure it takes to keep that same flow
will increase. This best relates to which of the following - CORRECT
ANSWER Poiseuille's Law
What law do we primarily use when adding peep? - CORRECT ANSWER Fick's
If a patient had a tidal volume(VT) of 650 ml, respiratory rate of 14 breaths / min.,
Physiologic deadspace of 175 ml, what would be this patient's actual alveolar ventilation
(VA)? - CORRECT ANSWER 6.7 L / mim
How many time constants are necessary for 95% of the tidal volume (VT) to be delivered
from a mechanical ventilator? - CORRECT ANSWER 3
