Oral and Maxillofacial Surgery

• Normal clotting time: 8 – 15 minutes.
• Platelet – rich plasma (1 unit): Raises platelet count by 7,000 – 10,000/μL.
• Fresh frozen plasma (150 mL): Contains 200 μ factors VIII & IX, 400 mg fibrinogen.
• Cryoprecipitate: Contains factors VIII, XIII, vWF, fibrinogen.
• DIC marker: Elevated D – dimers.
• Hemophilia factor levels: Majority have < 5%.
• Surgery in hemophilia: Raise factor levels to 50 – 75%.