What is the challenge associated with bright red blood during an injury?

Bright red blood is often indicative of arterial bleeding, which occurs when an artery is damaged. This type of blood is oxygen-rich and is under higher pressure than venous blood, making it more challenging to control during an injury. The high pressure and rapid flow of bright red blood can make it difficult to stop the bleeding with simple measures, such as applying direct pressure.

In contrast, dark red blood from veins is typically more manageable because it is under lower pressure. Recognizing the color of the blood can help first responders assess the severity of the injury quickly; bright red blood often signifies more urgent and aggressive care is needed. While bright red blood may signal that immediate action is necessary, effectively stemming the flow typically involves more than just basic first-aid measures.