Questions and Answers | Latest
Version | 2025/2026 | Correct & Verified
Which structure connects the pharynx to the lungs?
A. Esophagus
✔✔B. Trachea
C. Diaphragm
D. Larynx
Which device is best for delivering high-concentration oxygen to a breathing patient?
A. Nasal cannula
✔✔B. Nonrebreather mask
C. CPAP
D. Pocket mask
Which part of the respiratory system is responsible for gas exchange?
✔✔A. Alveoli
B. Trachea
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,C. Bronchi
D. Epiglottis
Which airway adjunct is appropriate for an unconscious patient without a gag reflex?
✔✔A. Oropharyngeal airway
B. Nasopharyngeal airway
C. Endotracheal tube
D. Cervical collar
Which of the following is a normal adult respiratory rate?
A. 8 breaths per minute
B. 26 breaths per minute
✔✔C. 16 breaths per minute
D. 30 breaths per minute
What is the function of the diaphragm during inhalation?
✔✔A. It contracts and moves downward
B. It relaxes and moves upward
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, C. It closes off the airway
D. It pushes air out of the lungs
A patient has snoring respirations. What should you do first?
✔✔A. Open the airway
B. Begin ventilations
C. Administer oxygen
D. Check blood pressure
Which sign most clearly indicates inadequate breathing?
✔✔A. No chest rise and fall
B. Speaking in full sentences
C. Slightly fast breathing
D. Pulse oximeter reads 98%
How much oxygen does a nonrebreather mask typically deliver?
A. 21%
B. 35%
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