Differences between clotting and bleeding time

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Clotting Time vs Bleeding Time
Clotting Time
- Measures: Time it takes for blood to clot in a test tube.
- Assesses: Coagulation cascade function.
- Tests: Intrinsic and extrinsic clotting pathways.
- Examples: Activated partial thromboplastin time (aPTT), prothrombin time (PT).

Bleeding Time
- Measures: Time it takes for bleeding to stop after a standardized cut or puncture wound.
- Assesses: Platelet function and primary hemostasis.
- Tests: Ability of platelets to form a platelet plug.

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Key Differences
- Mechanism: Clotting time evaluates coagulation factors, while bleeding time assesses platelet function and vascular response.
- Method: Clotting time is measured in vitro (in a test tube), while bleeding time is measured in vivo (in the body).

Both tests provide valuable information about hemostasis and can help diagnose bleeding disorders.


© Mr Adedeji Adeyanju via WhatsApp 

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