General IMED Hematology: Bleeding Disorders Quiz

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Which factor causes vasoconstriction in the sequence of haemostasis?

Von Willebrand factor

Thromboxane A2 (correct)

Serotonin

Fibrin

Which pathway leads to the formation of insoluble and permanent fibrin in haemostasis?

Platelet plug pathway

Extrinsic pathway

Vasoconstriction pathway

Intrinsic pathway (correct)

What leads to the formation of a permanent platelet plug in haemostasis?

Myogenic contraction of blood vessels

Exposure of collagen in vascular injury (correct)

Nerve reflex

Release of serotonin

What is needed for the repair of the damaged blood vessel in haemostasis?

Coagulation factors, platelets, vascular endothelium, and blood vessel Signup and view all the answers

What mechanism prevents hypercoagulability state by increasing fluidity?

Protein C & S Signup and view all the answers

Which factor is present in the plasma except factor III?

Thromboplastin Signup and view all the answers

What is the normal range for platelet count?

150,000 - 400,000/mm3 Signup and view all the answers

What platelet count range is associated with clinical petechiae?

< 50,000-20,000 mm3 Signup and view all the answers

What does a prolonged bleeding time mainly indicate?

Inadequate platelet function Signup and view all the answers

Which condition is associated with thrombasthenia?

Von Willebrand's disease Signup and view all the answers

What does the Partial Thromboplastin Time (PTT) test measure?

Intrinsic pathway sensitivity Signup and view all the answers

What does a prolonged Prothrombin Time (PT) indicate?

Vitamin K deficiency Signup and view all the answers

What is the normal range for the Whole Blood Clotting Time test?

5-10 minutes Signup and view all the answers

What does an International Normalized Ratio (INR) of 1 indicate?

< 1 Prothrombin Time Signup and view all the answers

What is the primary function of haemostasis?

Prevention of blood loss when a blood vessel is injured Signup and view all the answers

Which sequence of events occurs first in the process of haemostasis?

Vasoconstriction Signup and view all the answers

What leads to the formation of a permanent platelet plug in haemostasis?

Release of Von Willebrand factor causing platelet adhesion Signup and view all the answers

What is the role of protein C & S and thrombin III in haemostasis?

Prevent hypercoagulability state by increasing fluidity Signup and view all the answers

Which component is NOT needed for the repair of the damaged blood vessel in haemostasis?

Hemoglobin Signup and view all the answers

What characterizes any bleeding disorder according to the provided text?

Defect in coagulation factors Signup and view all the answers

Which factor is NOT present in the plasma?

Thromboplastin Signup and view all the answers

What is the main consequence of a platelet count less than 10,000-20,000 mm3?

ICU admission Signup and view all the answers

What is the effect of a prolonged Bleeding Time?

Reduced platelet function Signup and view all the answers

In which condition is the platelet count normal but its function unwell?

Uraemia Signup and view all the answers

Which factor deficiency can lead to a prolonged Partial Thromboplastin Time (PTT)?

Factor X Signup and view all the answers

What does a prolonged Prothrombin Time (PT) indicate?

Vitamin K deficiency Signup and view all the answers

Which test measures the efficiency of the extrinsic pathway of coagulation?

Prothrombin Time (PT) Signup and view all the answers

In which condition is the Platelet Count range considered adequate for hemostasis?

$80,000-100,000 mm^3$ Signup and view all the answers

What is the main factor responsible for the formation of a permanent platelet plug in haemostasis?

Platelet Aggregation Signup and view all the answers

What does a prolonged Partial Thromboplastin Time (PTT) indicate?

Factor VIII Deficiency Signup and view all the answers

General IMED Hematology: Bleeding Disorders Quiz

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Questions and Answers

Which factor causes vasoconstriction in the sequence of haemostasis?

Which pathway leads to the formation of insoluble and permanent fibrin in haemostasis?

What leads to the formation of a permanent platelet plug in haemostasis?

What is needed for the repair of the damaged blood vessel in haemostasis?

What mechanism prevents hypercoagulability state by increasing fluidity?

Which factor is present in the plasma except factor III?

What is the normal range for platelet count?

What platelet count range is associated with clinical petechiae?

What does a prolonged bleeding time mainly indicate?

Which condition is associated with thrombasthenia?

What does the Partial Thromboplastin Time (PTT) test measure?

What does a prolonged Prothrombin Time (PT) indicate?

What is the normal range for the Whole Blood Clotting Time test?

What does an International Normalized Ratio (INR) of 1 indicate?

What is the primary function of haemostasis?

Which sequence of events occurs first in the process of haemostasis?

What leads to the formation of a permanent platelet plug in haemostasis?

What is the role of protein C & S and thrombin III in haemostasis?

Which component is NOT needed for the repair of the damaged blood vessel in haemostasis?

What characterizes any bleeding disorder according to the provided text?

Which factor is NOT present in the plasma?

What is the main consequence of a platelet count less than 10,000-20,000 mm3?

What is the effect of a prolonged Bleeding Time?

In which condition is the platelet count normal but its function unwell?

Which factor deficiency can lead to a prolonged Partial Thromboplastin Time (PTT)?

What does a prolonged Prothrombin Time (PT) indicate?

Which test measures the efficiency of the extrinsic pathway of coagulation?

In which condition is the Platelet Count range considered adequate for hemostasis?

What is the main factor responsible for the formation of a permanent platelet plug in haemostasis?

What does a prolonged Partial Thromboplastin Time (PTT) indicate?

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