(1 point). Listen.
A nurse observes a marked elevated ST segment on the ECG.
What type of MI did the patient sustain?

Choice A rationale:

Pressure ulcers are not typically related to blood pooling in superficial veins due to prolonged standing. Pressure ulcers are usually caused by sustained pressure on the skin and underlying tissues, leading to tissue damage.

Choice B rationale:

Varicose veins can develop when blood pools in the superficial veins, often due to prolonged standing or increased pressure on the veins. This can lead to the dilation and twisting of the veins, resulting in varicose veins. Therefore, if a person stands for long periods of time, the nurse should assess for the development of varicose veins.

Choice C rationale:

Emboli and thromboangitis obliterans (Buerger's disease) are not directly related to blood pooling in superficial veins due to prolonged standing. Emboli are blood clots or other materials that travel through the bloodstream and can potentially block vessels in various parts of the body. Thromboangitis obliterans is a rare inflammatory condition that primarily affects the blood vessels of the extremities.

Choice A rationale:

Mast cells are involved in the inflammatory response but are not the primary white blood cells responsible for the development of fatty streaks in atherosclerosis. Mast cells release histamines and other inflammatory mediators.

Choice B rationale:

Neutrophils are primarily responsible for fighting bacterial infections and are not the primary cells involved in atherosclerosis. While inflammation is a component of atherosclerosis, neutrophils are not the main cells responsible for the development of fatty plaques.

Choice C rationale:

Macrophages play a central role in atherosclerosis. They are responsible for engulfing oxidized LDL cholesterol in arterial walls, which then contributes to plaque formation. Macrophages play a pivotal role in the inflammatory response within the arterial walls, leading to atherosclerosis.

Choice D rationale:

Lymphocytes are involved in the immune response, but they are not the primary cells responsible for the development of fatty streaks in atherosclerosis. Lymphocytes play a role in the adaptive immune system and are not as directly involved in the early stages of atherosclerosis as macrophages.