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What are two of the mechanisms from which a clot or thrombus arises and causes ischemic stroke?

Choose two answers

A.

Oral anticoagulation Hypertension

B.

Anoxic encephalopathy

C.

Carotid stenosis

D.

Atrial fibrillation

E.

Glutamate toxicity

Answer and Explanation

Correct Answer : C,D

A. Oral anticoagulation is a treatment to prevent clots and reduce the risk of ischemic stroke, not a mechanism that causes a clot to form.

B. Anoxic encephalopathy is brain damage due to a lack of oxygen, which can be a result of stroke but is not a cause of thrombus formation.

C. Carotid stenosis or the narrowing of the carotid arteries, can lead to the formation of clots that may travel to the brain and cause an ischemic stroke.

D. Atrial fibrillation is a heart rhythm disorder that can lead to the formation of blood clots in the heart. These clots can then travel to the brain and cause an ischemic stroke.

E. Glutamate toxicity refers to neuronal damage caused by excessive glutamate but is not a mechanism that leads to clot formation or ischemic stroke.


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Related Questions

Correct Answer is B

Explanation

A. Vasodilation is a component of the inflammatory response, but it is not the term that encompasses the entire process.

B. Inflammatory response is the body's automatic reaction to tissue injury, involving a series of events such as vasodilation, increased permeability, and the recruitment of immune cells to the site of injury.

C. Innate immunity is the first line of defense against pathogens, but the inflammatory response is more specific to the reaction to injury or infection.

D. Adaptive or acquired immunity is a more specific immune response that develops after exposure to a specific antigen, not the immediate response to injury.

Correct Answer is ["C","F"]

Explanation

A. Abdominal pain is not typically associated with aplastic anemia, which primarily affects the bone marrow.

B. Hair loss is not a common symptom of aplastic anemia, which affects blood cell production rather than hair follicles.

C. Petechiae are small red or purple spots on the skin caused by bleeding under the skin, a common symptom in aplastic anemia due to thrombocytopenia (low platelet count).

D. Back pain is not commonly associated with aplastic anemia.

E. Hemoptysis, or coughing up blood, is not a typical symptom of aplastic anemia.

F. Bleeding gums can occur in aplastic anemia due to a low platelet count, which impairs the body's ability to clot blood.

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