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West Coast EMT Block 2 Quiz Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
Which structure connects the pharynx to the lungs?
- Esophagus
- Diaphragm
- Larynx
✔✔B. Trachea
Which device is best for delivering high-concentration oxygen to a breathing patient?
- Nasal cannula
✔✔B. Nonrebreather mask
C. CPAP
- Pocket mask
Which part of the respiratory system is responsible for gas exchange?✔✔A. Alveoli
- Trachea 1 / 3
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- Bronchi
- Epiglottis
Which airway adjunct is appropriate for an unconscious patient without a gag reflex?✔✔A. Oropharyngeal airway
- Nasopharyngeal airway
- Endotracheal tube
- Cervical collar
Which of the following is a normal adult respiratory rate?
- 8 breaths per minute
- 26 breaths per minute
- 30 breaths per minute
✔✔C. 16 breaths per minute
What is the function of the diaphragm during inhalation?✔✔A. It contracts and moves downward
- It relaxes and moves upward 2 / 3
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- It closes off the airway
- It pushes air out of the lungs
A patient has snoring respirations. What should you do first?✔✔A. Open the airway
- Begin ventilations
- Administer oxygen
- Check blood pressure
Which sign most clearly indicates inadequate breathing?✔✔A. No chest rise and fall
- Speaking in full sentences
- Slightly fast breathing
- Pulse oximeter reads 98%
How much oxygen does a nonrebreather mask typically deliver?
A. 21%
- 35%
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