The nurse recognizes that patients with von Willebrand disease are at risk for prolonged bleeding times for which reason?
Adequate platelet production.
Deficiency in intrinsic clotting system factor.
Impairment of the thrombin fibrinogen reaction.
Variable factor VIII deficiencies and platelet dysfunction.
The Correct Answer is D
Choice A rationale:
Adequate platelet production does not explain the prolonged bleeding times in von Willebrand disease. These patients often have normal platelet counts, but their platelets do not function properly due to the absence or dysfunction of von Willebrand factor.
Choice B rationale:
Deficiency in intrinsic clotting system factor is not the primary cause of prolonged bleeding times in von Willebrand disease. The deficiency or dysfunction of von Willebrand factor, a protein that helps platelets adhere to the blood vessel walls and clot properly, is the key issue in this disorder.
Choice C rationale:
Impairment of the thrombin fibrinogen reaction does not directly relate to von Willebrand disease. This disorder primarily involves platelet dysfunction and variable factor VIII deficiencies, leading to prolonged bleeding times.
Choice D rationale:
Variable factor VIII deficiencies and platelet dysfunction are characteristic of von Willebrand disease. Factor VIII helps with blood clotting, and its deficiency, along with impaired platelet function, contributes to the prolonged bleeding times in patients with von Willebrand disease.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","C"]
Explanation
Choice A rationale:
Fatigue can be a symptom of uncontrolled hypertension. Elevated blood pressure can strain the heart, leading to decreased cardiac output and inadequate oxygen supply to body tissues, which can result in fatigue.
Choice B rationale:
Dizziness is a common symptom of uncontrolled hypertension. High blood pressure can cause the blood vessels in the inner ear to rupture or leak, leading to dizziness and balance issues.
Choice C rationale:
Palpitations, which are sensations of rapid, strong, or irregular heartbeats, can occur in individuals with uncontrolled hypertension. Hypertension can lead to changes in the structure and function of the heart, causing palpitations.
Choice D rationale:
Cluster headaches are not directly associated with uncontrolled hypertension. Cluster headaches are severe headaches that occur in clusters, often at the same time of day for several weeks. These headaches are not a typical symptom of hypertension.
Correct Answer is C
Explanation
Choice A rationale:
While pregnancy can contribute to increased blood pressure, it is not the priority question in this scenario. The sudden rise in blood pressure could indicate a hypertensive crisis, which needs immediate attention.
Choice B rationale:
Urination is not directly related to sudden rises in blood pressure. While urinary issues could be a sign of certain conditions, they are not the priority when dealing with a hypertensive emergency.
Choice C rationale:
A sudden rise in blood pressure can lead to symptoms such as headache and confusion, which could indicate a hypertensive crisis. This question is crucial to assess neurological symptoms, which can be indicative of target organ damage due to hypertension.
Choice D rationale:
Antiseizure medications are not directly related to sudden increases in blood pressure. Neurological symptoms (like those in choice C) are more indicative of a hypertensive crisis and require immediate attention.
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