NUR 209 EXAM 4 – NURSING STUDY GUIDE, PRACTICE QUESTIONS & EXAM
REVIEW 2026/2027
What is the active phase of ventilation called? - ANS ✔✔Inspiration
What is the passive phase of ventilation called? - ANS ✔✔Expiration
What is gas exchange in the lungs? - ANS ✔✔Intake of oxygen and releasing carbon dioxide
How is oxygen carried in the body? - ANS ✔✔Via plasma and red blood cells (RBCs) as oxyhemoglobin
What does hemoglobin carry besides oxygen? - ANS ✔✔Carbon dioxide (as carboxyhemoglobin)
Name one intervention to promote proper breathing. - ANS ✔✔Deep breathing
What is purse-lip breathing? - ANS ✔✔A technique to promote better oxygenation by controlling
exhalation
What is incentive spirometry used for? - ANS ✔✔To encourage deep breathing and lung expansion
How does pain affect breathing? - ANS ✔✔It may prevent deep breaths
What happens to respiratory rate during a fever? - ANS ✔✔It increases
What is a common effect of asthma and COPD on breathing? - ANS ✔✔Difficulty in taking deep breaths
and gas exchange
What is the significance of artificial surfactant for premature newborns? - ANS ✔✔It prevents alveoli
from collapsing
How does aging affect respiratory rate? - ANS ✔✔It decreases due to decreased elasticity in the lungs
What lifestyle factor can affect oxygenation? - ANS ✔✔Smoking
What is the normal range for pulse oximetry? - ANS ✔✔95-100%
What is the normal pulse oximetry range for COPD patients? - ANS ✔✔88-92%
What does capnography measure? - ANS ✔✔CO2 levels in the blood
What is thoracentesis? - ANS ✔✔A procedure to drain fluid from the lungs
What is the FiO2? - ANS ✔✔The concentration of oxygen in the gas mixture
What is the purpose of a nasal cannula? - ANS ✔✔To deliver supplemental oxygen
REVIEW 2026/2027
What is the active phase of ventilation called? - ANS ✔✔Inspiration
What is the passive phase of ventilation called? - ANS ✔✔Expiration
What is gas exchange in the lungs? - ANS ✔✔Intake of oxygen and releasing carbon dioxide
How is oxygen carried in the body? - ANS ✔✔Via plasma and red blood cells (RBCs) as oxyhemoglobin
What does hemoglobin carry besides oxygen? - ANS ✔✔Carbon dioxide (as carboxyhemoglobin)
Name one intervention to promote proper breathing. - ANS ✔✔Deep breathing
What is purse-lip breathing? - ANS ✔✔A technique to promote better oxygenation by controlling
exhalation
What is incentive spirometry used for? - ANS ✔✔To encourage deep breathing and lung expansion
How does pain affect breathing? - ANS ✔✔It may prevent deep breaths
What happens to respiratory rate during a fever? - ANS ✔✔It increases
What is a common effect of asthma and COPD on breathing? - ANS ✔✔Difficulty in taking deep breaths
and gas exchange
What is the significance of artificial surfactant for premature newborns? - ANS ✔✔It prevents alveoli
from collapsing
How does aging affect respiratory rate? - ANS ✔✔It decreases due to decreased elasticity in the lungs
What lifestyle factor can affect oxygenation? - ANS ✔✔Smoking
What is the normal range for pulse oximetry? - ANS ✔✔95-100%
What is the normal pulse oximetry range for COPD patients? - ANS ✔✔88-92%
What does capnography measure? - ANS ✔✔CO2 levels in the blood
What is thoracentesis? - ANS ✔✔A procedure to drain fluid from the lungs
What is the FiO2? - ANS ✔✔The concentration of oxygen in the gas mixture
What is the purpose of a nasal cannula? - ANS ✔✔To deliver supplemental oxygen
