[MCQs] Bleeding and Thrombosis – Part 2

I. Start the exam by click the “Start” button

See all quizzes of  the Bleeding and Thrombosis  at here:

Bleeding and Thrombosis – Part 1 | Bleeding and Thrombosis – Part 2 | Bleeding and Thrombosis – Part 3

II. Preview all questions below

1.Which of the following is a Coumarin containing herb ?

1. A Motherworth
2. B. Chamomile
3. Horse chestnut
   
4. All of the above

2. Bruising or mucosal bleeding may be the presenting complaint in ?

1.   Liver disease
2. Severe renal impairment,
3. Hypothyroidism
4. All of the above

3. All coagulation factors are synthesized in ?

1. Liver
2. Kidney
3. Lungs
4. None of the above

4. Which of the following coagulation factors is dependent on vitamin K for posttranslational modification ?

1.  Factor II
2. Factor VII
3. Factor IX
4. All of the above

5. Which of the following proteins is dependent on vitamin K for posttranslational modification ?

1. Protein C
2. Protein S
3. Protein Z
4. All of the above

6. Normal blood platelet count is ?

1. 50,000 to 100,000/pL
2. 100,000 to 250,000/pL
3. 150,000 to 450,000/pL
4. 250,000 to 550,000/pL

7. Thrombocytopenia results from ?

1. Decreased production of platelets
2. Increased destruction of platelets
3. Sequestration of platelets
4. Any of the above

8. Bleeding rarely occurs In Isolated thrombocytopenia at counts ?

1.  <   50000 / jL
2. < 80000 / jL
3. < 100000 / jL
4. < 150000 / jL

9. Most procedures can be performed in patients with a platelet count of ?

1.   <   50000 / jL
2. < 80000 / jL
3. < 100000 / jL
4. < 150000 / jL

10. The major risk factor for arterial thrombosis is ?

1.  Atherosclerosis
2. Hyperhomocysteinemia
3. Dysfibrinogenemia
4. Hormonal therapy

11. Most coagulation assays are performed in plasma anticoagulated with ?

1.  Ethylenediamine tetraacetic acid (EDTA)
2. Sodium citrate
3. Heparin
4. Any of the above

12. PT assesses the factors except ?

1.  Factor I
2. Factor II
3. Factor V
4. Factor VIII

13. International normalized ratio (INR) is calculated by ?

PT ratio x International Sensitivity Index (ISI)

1. PT ratio – International Sensitivity Index (ISI)
2. PT ratio + International Sensitivity Index (ISI)
3. (PT ratio)+International Sensitivity Index (ISI)
4. (PT ratio

14. Activated partial thromboplastin time (aPTT) assesses which of the following factors ?

1.  Factor VIII
2. Factor IX
3. Factor X
4. All of the above

15. Structure of Fibrinogen is ?

1.  Uninodular
2. Binodular
3. Trinodular
4. Quadrinodular

16. Cross-linking of the D domains on adjacent fibrinogen molecules is done by ?

1. FX
2. FXI
3. FXII
4. FXIIIa

17. Which of the following about D-Dimers is false ?

1. Product of complete lysis of fibrin
2. Released when plasmin acts on fibrin
3. Relatively specific test of fibrin degradation
4. Relatively specific test of fibrinogen degradation

18. Normal level of D-Dimer in blood is ?

1. < 500 pg/mL
2. < 500 ng/mL
3. < 500 jg/mL
4. < 500 mg/mL

19. Plasma level of D-Dimer is ?

1.   0.22    –  0.74 mg/mL
2. 22 –  0.74 jg/mL
3. 22 –  0.74 ng/mL
4. 0.22 –    0.74 pg/m

20. D-dimer levels increase in patients with ?

1.  Myocardial infarction
2. Pneumonia
3. II or III trimester of pregnancy
4. All of the above

21. Platelet interaction with vascular collagen is stabilized by ?

1. Gp Ia/IIa
2. Gp VI
3. von Willebrand factor (vWF)
4. FcRg