Gas Exchange and Oxygenation ATI Test
Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
Which organ system is primarily responsible for gas exchange?
✔✔ A. Respiratory system
B. Digestive system
C. Endocrine system
D. Urinary system
What occurs during gas exchange in the alveoli?
✔✔ A. Oxygen enters the blood, carbon dioxide leaves the blood
B. Carbon dioxide enters the alveoli from the environment
C. Oxygen leaves the blood into the alveoli
D. Nitrogen is absorbed into the blood
Which nursing intervention promotes gas exchange in a client with pneumonia?
A. Restrict fluid intake
✔✔ B. Encourage deep breathing and coughing
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,C. Place client in supine position
D. Decrease mobility to conserve oxygen
What is the purpose of incentive spirometry?
A. To humidify the lungs
✔✔ B. To encourage lung expansion and prevent atelectasis
C. To replace oxygen therapy
D. To drain secretions from the lungs
Which finding indicates impaired gas exchange?
✔✔ A. Oxygen saturation of 86%
B. Blood pressure of 130/80
C. Heart rate of 72 beats/min
D. Temperature of 98.6°F
A client with asthma is experiencing difficulty breathing. What is the immediate nursing action?
✔✔ A. Administer prescribed bronchodilator
B. Restrict oral fluids
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, C. Lower the head of the bed
D. Ask the client to walk around
Why is it important to maintain hydration in clients with respiratory conditions?
✔✔ A. To thin secretions for easier clearance
B. To decrease urinary output
C. To prevent hypertension
D. To slow breathing rate
Which client position best supports gas exchange?
A. Trendelenburg position
B. Supine position
✔✔ C. High Fowler’s position
D. Lithotomy position
What is the term for low oxygen levels in the blood?
✔✔ A. Hypoxemia
B. Hypercapnia
3
Questions and Answers | Latest Version
| 2025/2026 | Correct & Verified
Which organ system is primarily responsible for gas exchange?
✔✔ A. Respiratory system
B. Digestive system
C. Endocrine system
D. Urinary system
What occurs during gas exchange in the alveoli?
✔✔ A. Oxygen enters the blood, carbon dioxide leaves the blood
B. Carbon dioxide enters the alveoli from the environment
C. Oxygen leaves the blood into the alveoli
D. Nitrogen is absorbed into the blood
Which nursing intervention promotes gas exchange in a client with pneumonia?
A. Restrict fluid intake
✔✔ B. Encourage deep breathing and coughing
1
,C. Place client in supine position
D. Decrease mobility to conserve oxygen
What is the purpose of incentive spirometry?
A. To humidify the lungs
✔✔ B. To encourage lung expansion and prevent atelectasis
C. To replace oxygen therapy
D. To drain secretions from the lungs
Which finding indicates impaired gas exchange?
✔✔ A. Oxygen saturation of 86%
B. Blood pressure of 130/80
C. Heart rate of 72 beats/min
D. Temperature of 98.6°F
A client with asthma is experiencing difficulty breathing. What is the immediate nursing action?
✔✔ A. Administer prescribed bronchodilator
B. Restrict oral fluids
2
, C. Lower the head of the bed
D. Ask the client to walk around
Why is it important to maintain hydration in clients with respiratory conditions?
✔✔ A. To thin secretions for easier clearance
B. To decrease urinary output
C. To prevent hypertension
D. To slow breathing rate
Which client position best supports gas exchange?
A. Trendelenburg position
B. Supine position
✔✔ C. High Fowler’s position
D. Lithotomy position
What is the term for low oxygen levels in the blood?
✔✔ A. Hypoxemia
B. Hypercapnia
3
