Which describes the pathology of immune thrombocytopenia?
Diffuse fibrin deposition in the microvasculature
Deficiency in the production rate of globin chains
An excessive destruction of platelets
Bone marrow failure in which all elements are suppressed
The Correct Answer is C
The correct answer is c. An excessive destruction of platelets.
Choice A: Diffuse fibrin deposition in the microvasculature
Diffuse fibrin deposition in the microvasculature is not characteristic of immune thrombocytopenia (ITP). This description is more aligned with disseminated intravascular coagulation (DIC), a condition where widespread clotting occurs within the blood vessels, leading to multiple organ damage.
Choice B: Deficiency in the production rate of globin chains
A deficiency in the production rate of globin chains is associated with thalassemia, a genetic blood disorder that affects the production of hemoglobin. This is not related to the pathology of immune thrombocytopenia.
Choice C: An excessive destruction of platelets
An excessive destruction of platelets is the hallmark of immune thrombocytopenia (ITP). In ITP, the immune system mistakenly targets and destroys platelets, which are essential for blood clotting. This leads to a low platelet count and an increased risk of bleeding.
Choice D: Bone marrow failure in which all elements are suppressed
Bone marrow failure in which all elements are suppressed is characteristic of aplastic anemia, a condition where the bone marrow fails to produce sufficient blood cells. This is not related to immune thrombocytopenia.
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Related Questions
Correct Answer is C
Explanation
Choice A reason:
Walnuts are a source of protein and contain phenylalanine, an amino acid that individuals with phenylketonuria (PKU) must limit in their diet. While nuts can be a healthy snack for most people, they are not suitable for those with PKU due to their high phenylalanine content. Therefore, walnuts are not the best choice for children with PKU.
Choice B reason:
Cow’s milk is another source of protein and contains significant amounts of phenylalanine. Dairy products, including milk, cheese, and yogurt, are generally high in protein and should be avoided by individuals with PKU. Consuming cow’s milk can lead to elevated levels of phenylalanine in the blood, which can be harmful to children with PKU.
Choice C reason:
Bananas are a fruit that contains very low levels of phenylalanine. Fruits and vegetables are generally safe for individuals with PKU as they are low in protein and phenylalanine. Bananas, in particular, are a good option for children with PKU as they provide essential nutrients without contributing to high phenylalanine levels.
Choice D reason:
Diet soda with aspartame should be avoided by individuals with PKU because aspartame is an artificial sweetener that contains phenylalanine. Consuming products with aspartame can lead to an increase in phenylalanine levels in the blood, which can be harmful to those with PKU. Therefore, diet soda with aspartame is not a suitable choice for children with PKU.
Correct Answer is ["B","C","D"]
Explanation
Choice A reason:
Assessing skin turgor underneath the cast is not feasible because the cast covers the skin, making it difficult to evaluate turgor directly. Skin turgor is typically assessed to determine hydration status, but it is not a primary concern when monitoring a child with a cast. The focus should be on assessing for signs of complications such as swelling, circulation issues, and pain.
Choice B reason:
Skin temperature is an important assessment when a child has a cast. Changes in skin temperature, such as increased warmth, can indicate infection or inflammation, while a cooler temperature may suggest compromised circulation. Regularly checking the skin temperature around the cast can help identify potential complications early.
Choice C reason:
Assessing pulses is crucial when a child has a cast. Checking the pulses distal to the cast (e.g., in the fingers or toes) helps ensure that there is adequate blood flow to the extremity. Diminished or absent pulses can indicate compromised circulation, which requires immediate medical attention to prevent tissue damage.
Choice D reason:
Pain assessment is essential for a child with a cast. Pain can be an indicator of complications such as pressure sores, infection, or compartment syndrome. Monitoring the child’s pain levels and addressing any complaints of pain promptly is important for their comfort and to prevent further issues.
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