New York State Basic Emergency Medical Technician (EMT-B) Practice Exam

Why might bleeding from a neck laceration be life-threatening?

1. It can lead to severe headaches

2. It can create a risk of air embolism

3. It can cause a loss of consciousness

4. It may slow down blood circulation

The correct answer is: It can create a risk of air embolism

Bleeding from a neck laceration can be life-threatening primarily because it may create a risk of air embolism. In the event of a significant injury to the neck, particularly if blood vessels are compromised, there is a potential for air to be introduced into the vascular system—this is known as an air embolism. When air bubbles enter the bloodstream, they can obstruct blood flow to vital organs, including the brain and lungs, leading to serious complications such as stroke or respiratory distress. The anatomy of the neck, which contains large vessels, makes it particularly vulnerable. A tear in these vessels can allow air to enter the open wound. This risk is compounded in situations where there is rapid movement or a position change of the patient, further increasing the chances of air being drawn in. Immediate recognition and management of this injury are crucial to prevent catastrophic outcomes. Other options do not capture the immediate and severe risks associated with a neck laceration as effectively. For instance, while severe headaches and loss of consciousness may occur as secondary effects of blood loss or decreased perfusion, they are not direct life-threatening consequences like the risk of air embolism. Similarly, while blood circulation may be compromised, the more urgent threat in the context of a neck l