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Hematology: BOC IV Hemostasis Final Exam Questions Solved Correctly.
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Vasoconstriction is caused by several regulatory molecules which include: - Answer Thromboxane A2 and serotonin Warfarin is classified as a vitamin K antagonist. The factors that are impacted by Warfarin therapy are: - Answer II, VII, IX, X When a patient is placed on Warfarin therapy, ...

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  • September 4, 2024
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  • 2024/2025
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Hematology: BOC IV Hemostasis Final
Exam Questions Solved Correctly.
Vasoconstriction is caused by several regulatory molecules which include: - Answer Thromboxane A2
and serotonin



Warfarin is classified as a vitamin K antagonist. The factors that are impacted by Warfarin therapy are: -
Answer II, VII, IX, X



When a patient is placed on Warfarin therapy, the first factor that will be decreased is: - Answer Factor
VII



A patient with a positive family history of bleeding presents to the ED with the following results:



aPTT: 29.5 (25-35 seconds)

PT: 19.2 (10.5-12.5 seconds)



The patient is not on any medication and so is likely to be deficient in factor: - Answer VII



Hageman factor (XII) is involved in each of the following reactions except:



Activation of C1 to C1 esterase

Activation of plasminogen

Activation of factor XI

Transformation of fibrinogen to fibrin - Answer Transformation of fibrinogen to fibrin



The most potent plasminogen activator in the contact phase of coagulation is: - Answer Kallikrein

, The activation of plasminogen to plasmin resulting in the degradation of fibrin occurs by: - Answer tPA



How does tissue factor pathway inhibitor inhibit coagulation: - Answer Inhibition of tissue factor- factor
VIIa-factor-Xa complex



An inhibitor of plasmin activity is: - Answer Alpha-2 antiplasmin



Antithrombin inhibits factors: - Answer IIa and Xa



The propagation phase of the in vivo coagulation model includes: - Answer A final burst of thrombin



In the cell based model of coagulation the intrinsic pathway operates on the: - Answer Activated
platelet surface to produce the burst of thrombin



A new oral anticoagulant Apixiban has been given to a patient who was previously on Warfarin. This drug
directly inhibits: - Answer Factor Xa



The anticoagulant that directly inhibits thrombin is: - Answer Argatroban



A patient who presents with renal impairment is being started on oral anticoagulant therapy. The DOAC
that should be avoided would be: - Answer Dabigatran



In secondary hemostasis, coagulation proteins become activated to form a fibrin clot. Prior to these
proteins being activated, their inactive proenzymes are known as: - Answer Zymogens



Arterial thrombosis is caused by: - Answer WBC and platelets



The 2 factors that differentiate liver disease from vitamin K deficiency are: - Answer V and VII



In a patient diagnosed with liver disease, which one of the following factors typically shows an increase:

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