In addition to the congenital and acquired coagulation disorders, pregnant females owing to many physiological changes have altered haemostasis. In normal pregnancy nature aims at preventing blood loss at delivery, provoding hypercoagulable state. Most important concern in these women include von Willebrand disease, factor deficiencies, anticoagulant therapy, and managing peripartum haemorrhage and epidural haematoma possible during delivery. The reports are very important for anesthetist along with gynecologist.
• Bleeding Time
• Clotting Time
• Partial Thromboplastin Time (PTT)
• Prothrombin Time (PT)
Bleeding Time
This test measures the time taken for blood vessel constriction and platelet plug formation to occur. No clot is allowed to form, so that the arrest of bleeding depends exclusively on blood vessel constriction and platelet action. Increased bleeding time must be monitored owing to possibility of placental insufficiency due to clot in its vasculature. These may lead to congenital defects, miscarriage, etc.
Clotting Time
Clotting times measure the time required to form a clot. The two most commonly used measures of clotting times are prothrombin time (PT) and activated partial thromboplastin time (aPTT).
Partial Thromboplastin Time (PTT)
Prothrombin Time (PT)
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