What are the three most common causes of DIC?

What are the three most common causes of DIC?

• A. Snake bite, pregnancy, and sepsis
• B. Trauma, pancreatitis, leukemia
• C. Malaria, dengue, sepsis
• D. Liver failure, autoimmune disease, cancer

Answer: (A)

DIC is a situation where a severe underlying illness triggers widespread activation of the coagulation system, causing tiny clots to form throughout the microcirculation while clotting factors and platelets are consumed, leading to bleeding. The most frequent triggers are sepsis, obstetric complications related to pregnancy, and venom-induced coagulopathy from snake bites. Sepsis drives a systemic inflammatory response that upregulates tissue factor and the coagulation cascade, rapidly using up clotting factors and platelets. Pregnancy-related problems such as placental abruption or amniotic fluid embolism release tissue factor into the circulation, tipping the balance toward DIC. In regions where venomous snakes are common, their bites can introduce toxins that directly activate coagulation pathways and damage endothelium, precipitating DIC. While other conditions like trauma, pancreatitis, leukemia, malaria, dengue, liver failure, autoimmune diseases, or cancer can also trigger DIC, the combination of sepsis, pregnancy-related complications, and snake bite best reflects the most frequently encountered precipitants in many clinical settings and exams.

DIC is a situation where a severe underlying illness triggers widespread activation of the coagulation system, causing tiny clots to form throughout the microcirculation while clotting factors and platelets are consumed, leading to bleeding. The most frequent triggers are sepsis, obstetric complications related to pregnancy, and venom-induced coagulopathy from snake bites. Sepsis drives a systemic inflammatory response that upregulates tissue factor and the coagulation cascade, rapidly using up clotting factors and platelets. Pregnancy-related problems such as placental abruption or amniotic fluid embolism release tissue factor into the circulation, tipping the balance toward DIC. In regions where venomous snakes are common, their bites can introduce toxins that directly activate coagulation pathways and damage endothelium, precipitating DIC. While other conditions like trauma, pancreatitis, leukemia, malaria, dengue, liver failure, autoimmune diseases, or cancer can also trigger DIC, the combination of sepsis, pregnancy-related complications, and snake bite best reflects the most frequently encountered precipitants in many clinical settings and exams.