Master the Intricate Pathways of Blood Clotting
26 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is a characteristic of adult onset immune thrombocytopenic purpura (ITP)?

  • It is associated with autoimmune antibodies against platelets
  • It tends to recover spontaneously
  • It tends to lead to chronic disease (correct)
  • It is more common in children

Which of the following is a potential cause of clotting disorders?

  • Parainfluenza
  • Gram-negative sepsis
  • Ebola (correct)
  • Meningococcemia

Which of the following is a characteristic of Marburg virus?

  • It has a better prognosis than Ebola
  • It is clinically indistinguishable from Ebola
  • It has a fatality rate of 90% (correct)
  • It can be treated with a vaccine

Which of the following laboratory tests is used to evaluate hemostasis?

<p>CBC - Platelet count (A)</p> Signup and view all the answers

Which of the following blood products is used for anemic patients?

<p>RBC (D)</p> Signup and view all the answers

Which of the following is a function of blood vessels and platelets in controlling bleeding?

<p>To stop flow rapidly when the system is compromised (B)</p> Signup and view all the answers

What is primary hemostasis?

<p>The accumulation and adherence of platelets to the injury area (B)</p> Signup and view all the answers

What are the coagulation factors involved in secondary hemostasis?

<p>Proteins and factors (Ca ions) in blood (D)</p> Signup and view all the answers

What is the clotting cascade?

<p>The series of reactions that lead to the formation of a blood clot (A)</p> Signup and view all the answers

How can clotting be stopped using drug therapy?

<p>By disrupting the clotting cascade (D)</p> Signup and view all the answers

What are the most common clinically significant disturbances of hemostasis?

<p>Adequate numbers of platelets and normal amounts of coagulation factors (C)</p> Signup and view all the answers

What is the average survival of platelets in the circulation?

<p>10 days (A)</p> Signup and view all the answers

What is the term used to describe small red or red-blue spots about 1-5 mm in diameter?

<p>Petechiae (A)</p> Signup and view all the answers

Which of the following drugs blocks thromboxane synthesis?

<p>NSAIDS (B)</p> Signup and view all the answers

Which of the following is a cause of coagulation disturbance?

<p>Inadequate absorption of vitamin K (B)</p> Signup and view all the answers

What is the net effect of disseminated intravascular coagulation (DIC)?

<p>Widespread failure of hemostasis (A)</p> Signup and view all the answers

Which condition is characterized by the formation of large VWF multimer chains that criss-cross blood vessels and are hyper adhesive to platelets?

<p>Thrombotic Thrombocytopenic Purpura (TTP) (B)</p> Signup and view all the answers

What is the treatment for TTP

<p>Plasma exchange (C)</p> Signup and view all the answers

Which of the following is a cause of thromboplastic material liberation into circulation?

<p>All of the above (D)</p> Signup and view all the answers

What can inadequate synthesis of vitamin K lead to?

<p>Inadequate absorption of vitamin K (A)</p> Signup and view all the answers

Which pathway is responsible for the slow, 1-6 minutes maintenance of the blood coagulation factors?

<p>Intrinsic pathway (A)</p> Signup and view all the answers

Which pathway is responsible for the fast, 10-15 seconds, explosive emergency response of the blood coagulation factors?

<p>Extrinsic pathway (B)</p> Signup and view all the answers

What is the goal of both the intrinsic and extrinsic pathways of the blood coagulation factors?

<p>To form fibrin (A)</p> Signup and view all the answers

What is the role of thrombin in the blood coagulation process?

<p>To convert prothrombin into thrombin (C)</p> Signup and view all the answers

What is the function of the fibrinolytic system in the blood coagulation process?

<p>To dissolve clots by breaking down fibrin (D)</p> Signup and view all the answers

What is the role of antithrombin III in the blood coagulation process?

<p>To inhibit factor 2a in the cascade (D)</p> Signup and view all the answers

More Like This

Hematology Flashcards
16 questions

Hematology Flashcards

RadiantLaplace9461 avatar
RadiantLaplace9461
Hematology Chapter Overview
60 questions
Use Quizgecko on...
Browser
Browser