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Author Question: A patient is positive for fibrin degradation products and negative for D dimers. Which condition is ... (Read 56 times)

silviawilliams41

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on: Jun 25, 2018
A patient is positive for fibrin degradation products and negative for D dimers. Which condition is most likely?
 
  a. Systemic fibrinolysis
  b. DIC
  c. Hypofibrinogenemia
  d. Deep vein thrombosis (DVT)

Question 2

The urea solubility test evaluates factor:
 
  a. I
  b. V
  c. X
  d. XIII


phuda

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

ANS: A
Fibrin degradation products are positive and D dimers are negative in systemic (also called primary) fibrinolysis. Plasmin is present, which degrades fibrinogen so that it is decreased. However, thrombin is not present, so no D dimers are formed. They are both elevated in DIC and DVT. Neither is useful for hypofibrinogenemia, which is diagnosed using a fibrinogen assay.

Answer to Question 2

ANS: D
The urea solubility test evaluates factor XIII.


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