NREMT Emergency Medical Technician (EMT) Cognitive ExamAirway, Respiration & VentilationMedium
A 28-year-old female is found unconscious after a suspected opioid overdose. Her respirations are 4 breaths per minute, shallow, and irregular. Her skin is cyanotic. What is the most appropriate ventilation rate for this patient using a bag-valve mask?
- A10-12 breaths per minute (1 breath every 5-6 seconds).
- B30 breaths per minute (1 breath every 2 seconds).
- C4-6 breaths per minute (synchronous with her spontaneous breaths).
- D20-24 breaths per minute (1 breath every 2.5-3 seconds).
Show answer & explanationAnswer & explanation
Correct answer: A. 10-12 breaths per minute (1 breath every 5-6 seconds).
For an adult patient with inadequate spontaneous breathing, the recommended ventilation rate using a bag-valve mask is 10-12 breaths per minute, or approximately one breath every 5-6 seconds. This rate provides adequate ventilation without causing hyperventilation.
Why the other options are wrong
- B. This rate (30 breaths/minute) is excessively fast for an adult and would cause severe hyperventilation and its associated complications.
- C. Synchronizing with such a slow, irregular, and inadequate rate (4-6 breaths/minute) would not provide sufficient ventilation; the goal is to assist and improve the overall rate and depth.
- D. This rate (20-24 breaths/minute) is too fast for an adult and could lead to hyperventilation, gastric insufflation, and decreased cardiac output.
Adult BVM Ventilation Rate
When providing positive pressure ventilation to an adult with inadequate or absent breathing using a bag-valve mask, maintaining the correct rate is crucial for effective oxygenation and ventilation.
- Adults: 10-12 breaths per minute (1 breath every 5-6 seconds).
- Children/Infants: 12-20 breaths per minute (1 breath every 3-5 seconds).
- Each breath should be delivered over 1 second, with just enough volume to cause visible chest rise.
Memory trick: Adults go slow, kids go a bit faster, don't hyperventilate, or you'll cause a disaster!