BOC Coagulation Comprehensive
Questions and Answers Already Passed
What is the primary function of coagulation factors in the body?
A) To transport oxygen
B) To regulate blood pressure
✔✔C) To facilitate blood clotting
D) To fight infections
Which test is commonly used to assess the intrinsic pathway of coagulation?
A) Prothrombin time (PT)
✔✔B) Activated partial thromboplastin time (aPTT)
C) Thrombin time (TT)
D) Platelet count
What is the role of platelets in hemostasis?
A) To dissolve clots
B) To transport nutrients
1
,✔✔C) To aggregate and form a plug
D) To produce antibodies
Which coagulation factor is known as fibrinogen?
✔✔A) Factor I
B) Factor II
C) Factor III
D) Factor IV
What can prolonged prothrombin time (PT) indicate?
✔✔A) Possible liver dysfunction or vitamin K deficiency
B) Dehydration
C) Increased platelet count
D) Normal coagulation function
What is the effect of anticoagulants on the coagulation process?
A) They promote clot formation
✔✔B) They inhibit clot formation
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,C) They increase platelet activity
D) They enhance the clotting factors
Which condition is characterized by a deficiency of clotting factor VIII?
✔✔A) Hemophilia A
B) Hemophilia B
C) Von Willebrand disease
D) Disseminated intravascular coagulation (DIC)
What does the term "thrombocytopenia" refer to?
A) Increased clotting factors
✔✔B) Decreased platelet count
C) Increased white blood cells
D) Increased hemoglobin
What laboratory test is used to evaluate the effectiveness of heparin therapy?
A) Prothrombin time (PT)
✔✔B) Activated partial thromboplastin time (aPTT)
3
, C) Complete blood count (CBC)
D) Fibrinogen level
What is the significance of the International Normalized Ratio (INR)?
A) It measures platelet function
B) It assesses bleeding time
✔✔C) It standardizes PT results across different laboratories
D) It indicates the presence of clotting factors
Which vitamin is essential for the synthesis of several coagulation factors?
A) Vitamin A
B) Vitamin B12
✔✔C) Vitamin K
D) Vitamin C
What does the term "fibrinolysis" refer to?
✔✔A) The breakdown of fibrin in a blood clot
B) The formation of a new clot
4
Questions and Answers Already Passed
What is the primary function of coagulation factors in the body?
A) To transport oxygen
B) To regulate blood pressure
✔✔C) To facilitate blood clotting
D) To fight infections
Which test is commonly used to assess the intrinsic pathway of coagulation?
A) Prothrombin time (PT)
✔✔B) Activated partial thromboplastin time (aPTT)
C) Thrombin time (TT)
D) Platelet count
What is the role of platelets in hemostasis?
A) To dissolve clots
B) To transport nutrients
1
,✔✔C) To aggregate and form a plug
D) To produce antibodies
Which coagulation factor is known as fibrinogen?
✔✔A) Factor I
B) Factor II
C) Factor III
D) Factor IV
What can prolonged prothrombin time (PT) indicate?
✔✔A) Possible liver dysfunction or vitamin K deficiency
B) Dehydration
C) Increased platelet count
D) Normal coagulation function
What is the effect of anticoagulants on the coagulation process?
A) They promote clot formation
✔✔B) They inhibit clot formation
2
,C) They increase platelet activity
D) They enhance the clotting factors
Which condition is characterized by a deficiency of clotting factor VIII?
✔✔A) Hemophilia A
B) Hemophilia B
C) Von Willebrand disease
D) Disseminated intravascular coagulation (DIC)
What does the term "thrombocytopenia" refer to?
A) Increased clotting factors
✔✔B) Decreased platelet count
C) Increased white blood cells
D) Increased hemoglobin
What laboratory test is used to evaluate the effectiveness of heparin therapy?
A) Prothrombin time (PT)
✔✔B) Activated partial thromboplastin time (aPTT)
3
, C) Complete blood count (CBC)
D) Fibrinogen level
What is the significance of the International Normalized Ratio (INR)?
A) It measures platelet function
B) It assesses bleeding time
✔✔C) It standardizes PT results across different laboratories
D) It indicates the presence of clotting factors
Which vitamin is essential for the synthesis of several coagulation factors?
A) Vitamin A
B) Vitamin B12
✔✔C) Vitamin K
D) Vitamin C
What does the term "fibrinolysis" refer to?
✔✔A) The breakdown of fibrin in a blood clot
B) The formation of a new clot
4
