MRCP UK EXAMINATIONS

CLINICAL ENCOUNTERS

ANTICOAGULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What element of blood is involved in primary hemostasis?
A
Leukocytes
B
Platelets
C
Lymphocytes
D
Erythrocytes
E
Enzymes
Explanation: 

Detailed explanation-1: -Platelets are the smallest blood component, that capable to act as a fundamental role in thrombosis and hemostasis. Initial platelet adhesion, activation and aggregation upon tissue injury, stimulates coagulation factors and other mediators to achieve hemostasis.

Detailed explanation-2: -During primary hemostasis, platelets clump up together and form a plug around the site of injury. Then in the second stage, called secondary hemostasis, the platelet plug is reinforced by a protein mesh made up of fibrin.

Detailed explanation-3: -In addition to their role in primary hemostasis, activated platelets provide an efficient catalytic surface for the assembly of the enzyme complexes of the blood coagulation system, also known as secondary hemostasis.

There is 1 question to complete.