Questions 27

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Results Analysis Questions

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Question 1 of 5

A child is admitted to the hospital with a suspected diagnosis of idiopathic thrombocytopenic purpura (ITP) and diagnostic studies are performed. Which diagnostic result is indicative of this disorder?

Correct Answer: C

Rationale: The laboratory manifestations of ITP include the presence of a low platelet count of usually less than 20,000 mm^3 (20 × 10^9/L). Thrombocytopenia is the only laboratory abnormality expected with ITP. If there has been significant blood loss, there is evidence of anemia in the blood cell count. If a bone marrow examination is performed, the results with ITP show a normal or increased number of megakaryocytes, which are the precursors of platelets. Option 4 indicates the bone marrow result that would be found in a child with leukemia.

Question 2 of 5

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Question 3 of 5

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Question 4 of 5

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Question 5 of 5

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