Which organs are particularly vulnerable to life-threatening symptoms during an arterial gas embolism?

During an arterial gas embolism (AGE), the passage of gas bubbles into the arterial circulation can lead to serious complications, particularly affecting the heart and central nervous system (CNS).

The heart is at risk because gas bubbles can obstruct blood flow, leading to ischemia or even infarction. The central nervous system is particularly vulnerable due to its high oxygen demand and sensitive nature. When gas bubbles reach the brain, they can cause a range of neurological symptoms, including confusion, paralysis, or loss of consciousness, which can be life-threatening.

This vulnerability of the heart and CNS is due to the critical functions they perform and their reliance on a constant and unobstructed supply of blood. In contrast, other organs listed in the options are less susceptible to immediate life-threatening symptoms when affected by gas emboli, as they are either less critical for immediate survival or have better compensatory mechanisms.