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WorksheetsRespiratory System Quiz
Total questions: 20
Worksheet time: 10mins
What is the normal value of airway resistance?
2 cm H₂O/L/sec
1 cm H₂O/L/sec
0.5 cm H₂O/L/sec
3 cm H₂O/L/sec
Which of the following decreases airway resistance?
Bronchoconstriction
Increased mucus secretion
Sympathetic stimulation
Histamine release
Pulmonary surfactant is secreted by?
Type I alveolar cells
Type II alveolar cells
Alveolar macrophages
Endothelial cells
Which is the main component of pulmonary surfactant?
Cholesterol
Lecithin
Sphingomyelin
Albumin
Which of the following is a major function of surfactant?
Promotes alveolar collapse
Decreases lung compliance
Increases surface tension
Reduces surface tension
Respiratory distress syndrome in premature infants is due to deficiency of?
Histamine
Surfactant
Immunoglobulin
Elastin
Minute ventilation is calculated by?
Tidal volume × Respiratory rate
Residual volume × Respiratory rate
Inspiratory capacity × Tidal volume
Total lung capacity × Respiratory rate
Normal tidal volume in an adult is approximately?
1000 mL
1500 mL
500 mL
250 mL
Alveolar ventilation is defined as?
Air entering the lungs per minute
Air entering alveoli per minute
Air in residual volume
Air in anatomical dead space
Which of the following is not included in lung volumes?
Tidal volume
Inspiratory reserve volume
Functional residual capacity
Residual volume
Vital capacity is the sum of?
TV + RV + IRV
IRV + ERV + TV
TV + ERV + RV
ERV + IRV + RV
What is the normal value of total lung capacity?
2500 mL
6000 mL
3500 mL
1000 mL
The ventilation/perfusion (V/Q) ratio is highest in which part of the lung?
Apex
Base
Middle
Equal in all parts
Low V/Q ratio indicates?
Good ventilation and perfusion
Dead space ventilation
Increased alveolar oxygen
Shunting of blood
Which of the following is a cause of high V/Q ratio?
Foreign body aspiration
Asthma
Pulmonary embolism
Pulmonary fibrosis
Cheyne-Stokes respiration is characterized by?
Rapid deep breathing only
Shallow breathing with apneic episodes
Gradual increase and decrease in breathing with apneas
Irregular deep breathing
Kussmaul’s respiration is seen in?
Heart failure
Metabolic acidosis
Drug overdose
Pulmonary edema
Biot’s respiration is associated with?
Cerebral injury
Metabolic alkalosis
Heart failure
Kidney failure
Which principle governs the airflow through air passages?
Poiseuille’s law
Boyle’s law
Charles’ law
Fick’s law
Asphyxia is a condition due to?
Hyperventilation
Hypoxia and hypercapnia
Hypocapnia only
Hyperoxia
