Which of the following is NOT a sign of an air embolism?

• A. pale skin
• B. chest pain
• C. shortness of breath
• D. confusion

Answer: (A)

Air embolism causes gas bubbles to block blood vessels, leading to immediate oxygen delivery problems to the lungs and brain. That makes respiratory symptoms and neurologic changes the most likely signs: chest pain from pulmonary/vascular impact, shortness of breath from obstructed gas exchange, and confusion from reduced brain oxygen or embolic effects. Pale skin, on the other hand, is a nonspecific sign of poor perfusion seen in many emergencies and isn’t a characteristic feature of an air embolism. So the statement that pale skin is not a sign fits because it isn’t tied to the embolism’s typical presentation, while chest pain, shortness of breath, and confusion align with how air bubbles disrupt circulation and oxygenation. If you suspect an embolism, prioritize high-flow oxygen and rapid transport.