PGY 300 RESPIRATORY TEST BANK
PRACTICE QUESTIONS SOLUTIONS
DETAILED EXPLANATIONS VERIFIED
●● Type II epithelial alveolar cells in a healthy individual
Answer: maintain compliance of the lung alveoli
●● Surfactant
Answer: is deficient in some premature infants
●● when the abdominal and internal intercostal muscles contract
Answer: the pleural pressure becomes less negative
●● Dalton's law states
Answer: in a mixture of gases like air, the total pressure is the sum of the
individual partial pressures of the gases in the mixture
●● expiration occurs mainly when at rest by contraction of which
muscles in a healthy individual?
Answer: none of the above
, ●● in the lungs, a local increase in PCO2 would cause which of the
following?
Answer: the bronchioles will dilate
●● the total lung capacity minus the vital capacity is equal to what lug
volume or capacity?
Answer: residual volume
●● in the disease emphysema, many symptoms are due to elastic fibers
in the lung being destroyed. this will cause
Answer: increase in compliance and decrease in elastance
●● decreasing the alveolar ventilation rate, without changing
metabolism, in a healthy individual will
Answer: 1. decrease the partial pressure of O2
2. decrease the rate of O2 diffusion from alveoli to blood
3. increase the partial pressure of CO2 in alveoli
4. decrease the rate of CO2 diffusion from the blood to alveoli
●● John is 66 years old, had worked in an industrial factory for 30 years,
has a decreased FRC, decreased lung compliance, a normal airway
resistance, and has a respiratory rate of 30 breaths per minute. John
probably is suffering from
Answer: lung fibrosis
PRACTICE QUESTIONS SOLUTIONS
DETAILED EXPLANATIONS VERIFIED
●● Type II epithelial alveolar cells in a healthy individual
Answer: maintain compliance of the lung alveoli
●● Surfactant
Answer: is deficient in some premature infants
●● when the abdominal and internal intercostal muscles contract
Answer: the pleural pressure becomes less negative
●● Dalton's law states
Answer: in a mixture of gases like air, the total pressure is the sum of the
individual partial pressures of the gases in the mixture
●● expiration occurs mainly when at rest by contraction of which
muscles in a healthy individual?
Answer: none of the above
, ●● in the lungs, a local increase in PCO2 would cause which of the
following?
Answer: the bronchioles will dilate
●● the total lung capacity minus the vital capacity is equal to what lug
volume or capacity?
Answer: residual volume
●● in the disease emphysema, many symptoms are due to elastic fibers
in the lung being destroyed. this will cause
Answer: increase in compliance and decrease in elastance
●● decreasing the alveolar ventilation rate, without changing
metabolism, in a healthy individual will
Answer: 1. decrease the partial pressure of O2
2. decrease the rate of O2 diffusion from alveoli to blood
3. increase the partial pressure of CO2 in alveoli
4. decrease the rate of CO2 diffusion from the blood to alveoli
●● John is 66 years old, had worked in an industrial factory for 30 years,
has a decreased FRC, decreased lung compliance, a normal airway
resistance, and has a respiratory rate of 30 breaths per minute. John
probably is suffering from
Answer: lung fibrosis
