Question 23 QMED05 - Machinist-Pump Technician

The Correct Answer is D. **Why Option D is correct:** Arterial bleeding occurs when an artery (a vessel carrying oxygenated blood away from the heart) is damaged. The blood is **bright red** because it is highly oxygenated. Furthermore, since the arteries are under direct pressure from the heart's pumping action, the blood flows out of the wound in powerful, synchronized **spurts** or pulsations corresponding to the heartbeat. Therefore, bright red blood flowing in spurts is the classic characteristic of arterial bleeding. **Why other options are incorrect:** * **A) Dark red blood flowing from the wound with a steady flow:** This description characterizes **venous bleeding** (from a vein). Venous blood is darker red (deoxygenated) and, while often profuse, flows steadily rather than spurting because it is under lower pressure than arterial blood. * **B) Dark red blood flowing from the wound in spurts:** This combination is incorrect. Dark red blood indicates deoxygenation (venous flow), which is not associated with spurting pressure. Spurting indicates arterial flow, which is bright red. * **C) Bright red blood flowing from the wound with a steady flow:** While the blood is correctly described as bright red (indicating arterial origin), the steady flow is incorrect. Arterial bleeding is characterized by spurting due to the direct pressure of the heart. (Note: A steady flow of bright red blood might sometimes be associated with severe capillary damage or an artery that has been partially compressed, but the definitive characteristic of unimpeded arterial bleeding is spurting.)