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Author Question: A 5-year-old boy has his blood drawn for platelet aggregation studies. Ristocetin aggregation (RIPA) ... (Read 27 times)

mckennatimberlake

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on: Jun 25, 2018
A 5-year-old boy has his blood drawn for platelet aggregation studies. Ristocetin aggregation (RIPA) comes back abnormal with all other agonists displaying normal aggregation. VWF antigen is within normal limits.
 
  What is the most likely reason for this discrepancy?
 
  a. The VWF antigen test was performed incorrectly and should be repeated.
  b. The patient might be suffering from a qualitative platelet defect disorder.
  c. The RIPA exam was performed incorrectly and should be repeated.
  d. Multimer analysis should be performed to confirm these findings.

Question 2

Which of the following is used in the identification of a secondary hemostatic pathway anomaly?
 
  a. Bleeding time
  b. ACE activity
  c. Platelet aggregation studies
  d. Factor assays


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voltaire123

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Reply #1 on: Jun 25, 2018
Answer to Question 1

Correct Answer: B

Answer to Question 2

Correct Answer: D


mckennatimberlake

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Reply 2 on: Jun 25, 2018
Excellent

Chelseyj.hasty

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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