Aspirin can prevent inappropriate blood clotting in the following ways except:
Aspirin can reduce unwanted platelet adhesion by inhibiting TXA2 synthesis
Platelet aggregation can be reduced through inhibition of prostaglandin production by aspirin
Aspirin inhibits the conversion of fibrinogen into fibrin and consequent platelet plug formation
Aspirin helps to inhibit ADP action and minimizes platelet plug formation
The Correct Answer is C
Choice A reason: Aspirin inhibits TXA2 synthesis, reducing platelet adhesion and clotting. This is a true mechanism of aspirin’s antiplatelet effect, so it’s incorrect as the exception.
Choice B reason: Aspirin reduces prostaglandin production, which decreases platelet aggregation. This is a valid antiplatelet mechanism, so it’s incorrect for the action aspirin does not perform.
Choice C reason: Aspirin does not inhibit fibrinogen-to-fibrin conversion; this is part of the coagulation cascade, not platelet function. Aspirin targets platelets, making this the correct action it doesn’t perform.
Choice D reason: Aspirin inhibits ADP-induced platelet aggregation, minimizing plug formation. This is a true antiplatelet effect, so it’s incorrect as the action aspirin does not do.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Vasodilation increases blood flow, causing redness and heat, but doesn’t directly cause fluid leakage. Increased capillary permeability allows fluid to escape into tissues, causing edema, so this is incorrect for the primary cause of inflammatory edema.
Choice B reason: Increased capillary permeability, triggered by inflammatory mediators, allows plasma to leak into tissues, causing edema. This is the primary mechanism during inflammation, making it the correct choice for the cause of edema in the process.
Choice C reason: Neutrophil emigration fights infection but doesn’t directly cause fluid accumulation. Capillary permeability changes lead to edema, so this is incorrect for the cause of swelling in inflammation.
Choice D reason: Endothelial cell contraction contributes to permeability but is a secondary mechanism. Increased capillary permeability is the overarching process causing fluid leakage and edema, so this is less precise and incorrect.
Correct Answer is B
Explanation
Choice A reason: Dawn phenomenon involves morning hyperglycemia, not hunger, tachycardia, or confusion. Hypoglycemia from exercise causes these acute symptoms, so this is incorrect for the described episode in Type 1 diabetes.
Choice B reason: Hypoglycemia, often triggered by increased exercise, causes hunger, lightheadedness, tachycardia, pallor, headache, and confusion due to low blood sugar. This matches the symptoms, making it the correct cause for the patient’s episode.
Choice C reason: Hyperglycemia causes thirst, urination, and fatigue, not tachycardia or confusion. Hypoglycemia from exercise aligns with the acute, neuroglycopenic symptoms described, so this is incorrect for the cause.
Choice D reason: Somogyi effect involves rebound hyperglycemia after nocturnal hypoglycemia, not acute symptoms like hunger and confusion. Exercise-induced hypoglycemia fits the immediate presentation, so this is incorrect for the cause.
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