Podcast
Questions and Answers
What is the dominant feature of hypoventilation?
What is the dominant feature of hypoventilation?
- Hypercapnia (correct)
- Respiratory alkalosis
- Alkalosis
- Hypoxemia
What is a common finding in patients with central sleep apnea?
What is a common finding in patients with central sleep apnea?
- Loud snoring
- Effort without airflow
- Apneic periods of no respiratory effort (correct)
- Obstruction during inspiration
How does CPAP help in the treatment of sleep apnea?
How does CPAP help in the treatment of sleep apnea?
- Increases risk of CV complications
- Raises pressure inside airways (correct)
- Causes daytime somnolence
- Induces sleep disordered breathing
What is the main cause of low FiO2 leading to hypoxemic hypoxia?
What is the main cause of low FiO2 leading to hypoxemic hypoxia?
What are two cardinal features of hypoventilation?
What are two cardinal features of hypoventilation?
What is the most common cause of hypoxemia according to the text?
What is the most common cause of hypoxemia according to the text?
Which gas transfer is affected by ventilation-perfusion inequality?
Which gas transfer is affected by ventilation-perfusion inequality?
In obstructive diseases, increased resistance to expiratory airflow primarily occurs due to which process?
In obstructive diseases, increased resistance to expiratory airflow primarily occurs due to which process?
What exacerbates ventilation-perfusion inequality according to the text?
What exacerbates ventilation-perfusion inequality according to the text?
Which condition is specifically mentioned in the text as contributing to the fundamental physiologic problem in obstructive diseases?
Which condition is specifically mentioned in the text as contributing to the fundamental physiologic problem in obstructive diseases?
In a patient with hypoventilation, which of the following is a characteristic finding?
In a patient with hypoventilation, which of the following is a characteristic finding?
Which of the following is a common cause of respiratory acidosis?
Which of the following is a common cause of respiratory acidosis?
What differentiates obstructive sleep apnea from central sleep apnea?
What differentiates obstructive sleep apnea from central sleep apnea?
Which of the following is NOT a feature of central sleep apnea?
Which of the following is NOT a feature of central sleep apnea?
What is a potential consequence of untreated sleep apnea?
What is a potential consequence of untreated sleep apnea?
Which condition can lead to the depression of respiratory centers by drugs like opiates?
Which condition can lead to the depression of respiratory centers by drugs like opiates?
What is a characteristic of diseases of the nerves to respiratory muscles like in Guillain-Barre syndrome?
What is a characteristic of diseases of the nerves to respiratory muscles like in Guillain-Barre syndrome?
Which condition may cause upper airway obstruction, leading to obstructive sleep apnea?
Which condition may cause upper airway obstruction, leading to obstructive sleep apnea?
In the context of hypoxemic hypoxia, what effect does diffusion impairment have across the alveolar-capillary unit?
In the context of hypoxemic hypoxia, what effect does diffusion impairment have across the alveolar-capillary unit?
Which type of shunt allows blood to bypass ventilated lung regions and does not respond to 100% O2 therapy?
Which type of shunt allows blood to bypass ventilated lung regions and does not respond to 100% O2 therapy?
What is the main physiological factor that contributes to hypoventilation in patients with severe chronic lung disease?
What is the main physiological factor that contributes to hypoventilation in patients with severe chronic lung disease?
Which condition may lead to hypercapnic respiratory failure when exposed to excessive oxygen therapy?
Which condition may lead to hypercapnic respiratory failure when exposed to excessive oxygen therapy?
What is a common hazard associated with oxygen therapy mentioned in the text?
What is a common hazard associated with oxygen therapy mentioned in the text?
Which type of sleep apnea is commonly treated with continuous positive airway pressure (CPAP) postoperatively?
Which type of sleep apnea is commonly treated with continuous positive airway pressure (CPAP) postoperatively?
In mechanical ventilation, which mode delivers a known volume despite changes in lung properties or airway resistance?
In mechanical ventilation, which mode delivers a known volume despite changes in lung properties or airway resistance?
Which of the following is a potential cause of hypoventilation?
Which of the following is a potential cause of hypoventilation?
What is a common feature of both obstructive sleep apnea and central sleep apnea?
What is a common feature of both obstructive sleep apnea and central sleep apnea?
In respiratory acidosis, which of the following compensatory mechanisms is expected to occur?
In respiratory acidosis, which of the following compensatory mechanisms is expected to occur?
What is a potential hazard associated with central sleep apnea?
What is a potential hazard associated with central sleep apnea?
Which of the following best describes a characteristic of obstructive sleep apnea?
Which of the following best describes a characteristic of obstructive sleep apnea?
What is the characteristic arterial blood gas finding in patients with respiratory acidosis?
What is the characteristic arterial blood gas finding in patients with respiratory acidosis?
Which condition is characterized by decreased sensitivity of central chemoreceptors to changes in PaCO2?
Which condition is characterized by decreased sensitivity of central chemoreceptors to changes in PaCO2?
What is a common feature in patients with chronic bronchitis?
What is a common feature in patients with chronic bronchitis?
Which factor contributes to luminal narrowing in chronic bronchitis?
Which factor contributes to luminal narrowing in chronic bronchitis?
What is the primary cause of COPD in developing populations?
What is the primary cause of COPD in developing populations?
Which type of emphysema is usually associated with alpha-1 antitrypsin deficiency?
Which type of emphysema is usually associated with alpha-1 antitrypsin deficiency?
Which feature distinguishes emphysema from chronic bronchitis?
Which feature distinguishes emphysema from chronic bronchitis?
What is a clinical feature specific to chronic bronchitis?
What is a clinical feature specific to chronic bronchitis?
Which condition can lead to hypercapnia and respiratory acidosis in patients with COPD?
Which condition can lead to hypercapnia and respiratory acidosis in patients with COPD?
What is a characteristic feature of hypoventilation that may be observed in COPD patients?
What is a characteristic feature of hypoventilation that may be observed in COPD patients?
