1. Chemoreceptors detect an elevation in plasma CO2concentration. Which of the f
ID: 9623 • Letter: 1
Question
1. Chemoreceptors detect an elevation in plasma CO2concentration. Which of the following is the most likely response?
a. No change in the rate of respiration b. Decreases in the rate of respiration
c. Increases in the rate of respiration d. None of the above
2. Increasing thoracic volume will most likely results in
a. Expiration b. Inspiration c. No change in gas movement
3. A 16 year-old female presents to the ER with a panic attach. She is tachypneic (fast respiratory rate). The initial arterial blood gas would most likely demonstrate
a. normal pH, normal H+ b. low pH, normal H+
c. low pH, high H+ d. high pH, high H+ e. high pH, low H+
4. Which of the following is most correct for acid-base disturbance?
a. Respiratory acidosis may results from defect in ventilation and perfusion
b. Compensatory mechanism for respiratory acidosis is hypoventilation
c. Respiratory alkalosis results from hypercapnea
d. Compensatory mechanism for respiratory alkalosis is hyperventilation
5. Which of the following statements is most correct for the respiratory system?
a. Compliance is inversely proportional to the amount of surfactant on the alveolar surface
b. Alveolar surface tension is proportional to the amount of surfactant
c. Compliance is proportional to the surface tension
d. Alveolar ventilation is equal to the tidal volume corrected for dead space times the breathing frequency
e. All of the above
Explanation / Answer
1. Chemoreceptors detect an elevation in plasma CO2concentration. Which of the following is the most likely response?
a. No change in the rate of respiration b. Decreases in the rate of respiration
c. Increases in the rate of respiration d. None of the above
2. Increasing thoracic volume will most likely results in
a. Expiration b. Inspiration c. No change in gas movement
3. A 16 year-old female presents to the ER with a panic attach. She is tachypneic (fast respiratory rate). The initial arterial blood gas would most likely demonstrate
a. normal pH, normal H+ b. low pH, normal H+
c. low pH, high H+ d. high pH, high H+ e. high pH, low H+
4. Which of the following is most correct for acid-base disturbance?
a. Respiratory acidosis may results from defect in ventilation and perfusion
b. Compensatory mechanism for respiratory acidosis is hypoventilation
c. Respiratory alkalosis results from hypercapnea
d. Compensatory mechanism for respiratory alkalosis is hyperventilation
5. Which of the following statements is most correct for the respiratory system?
a. Compliance is inversely proportional to the amount of surfactant on the alveolar surface
b. Alveolar surface tension is proportional to the amount of surfactant
c. Compliance is proportional to the surface tension
d. Alveolar ventilation is equal to the tidal volume corrected for dead space times the breathing frequency
e. All of the above
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