Emergency Medical Technician (EMT) Basic Certification Practice Exam

What color is blood typically observed in a capillary bleed?

1. Bright red

2. Dark red

3. Light pink

4. Dark brown

The correct answer is: Dark red

In the case of a capillary bleed, the blood is typically observed as bright red. This bright red color is attributed to the oxygen-rich blood that is found in capillaries, which are the smallest blood vessels in the body responsible for the exchange of oxygen and carbon dioxide. The bright red color indicates that the blood is well-oxygenated, as it is coming from the arterial side of the circulation. Understanding the coloration of blood is important for EMTs in assessing a patient's condition and the severity of an injury or bleeding. In contrast, dark red blood is more characteristic of venous bleeding, which occurs when blood is flowing from veins. Light pink or dark brown blood does not typically represent any common type of bleeding in emergency situations. Instead, the bright red color seen in capillary bleeding can signify a more superficial wound that is less concerning than deep arterial or venous bleeding.