Hem/Onc Quiz #17: Coagulation Disorders

1. A 25-year-old male presents to the emergency department after a minor car accident with extensive bruising and prolonged bleeding from a small laceration on his forearm. Laboratory tests reveal a prolonged PT and aPTT, with a normal platelet count. Which of the following is the most likely diagnosis? 

Question 1 of 5

2. A 4-year-old boy is brought to the clinic due to his mother's concern about his frequent nosebleeds and a large, painful hematoma on his knee from a minor fall. Laboratory tests show a normal platelet count and PT, but a significantly prolonged aPTT that corrects with mixing studies. Which of the following is the most likely diagnosis?

Question 2 of 5

3. A 70-year-old woman presents with sudden onset of difficulty breathing and chest pain. A ventilation-perfusion scan indicates a high probability of pulmonary embolism. Laboratory tests reveal an elevated D-dimer level. Which of the following conditions is most directly related to the findings? 

Question 3 of 5

4. A 32-year-old woman with a history of recurrent miscarriages is found to have a prolonged aPTT that does not correct with mixing studies. Which of the following is the most likely diagnosis? 

Question 4 of 5

5. A newborn is diagnosed with severe bleeding disorder shortly after birth. The mother has a history of mild bleeding symptoms. Laboratory tests show a prolonged PT and aPTT, and the baby responds well to treatment with vitamin K. Which of the following is the most likely diagnosis? 

Question 5 of 5


 

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