DIC is commonly seen in-
**Core Concept**
Disseminated Intravascular Coagulation (DIC) is a complex hemostatic disorder characterized by the simultaneous activation of both coagulation and fibrinolysis pathways, leading to the formation of microthrombi in small blood vessels. This results in the consumption of platelets and coagulation factors, ultimately causing bleeding and organ dysfunction.
**Why the Correct Answer is Right**
DIC is commonly seen in conditions that lead to endothelial damage, such as severe sepsis, trauma, and malignancy. The activation of coagulation factors, particularly tissue factor, triggers a cascade of reactions that result in the formation of thrombin and fibrin, which then deposit in the microvasculature. This process consumes platelets and coagulation factors, leading to a pro-coagulant state that eventually becomes overwhelmed, resulting in bleeding.
**Why Each Wrong Option is Incorrect**
**Option A:** Severe anemia - While anemia can be a result of DIC, it is not a common cause of the condition.
**Option B:** Chronic kidney disease - Chronic kidney disease can lead to bleeding disorders due to platelet dysfunction, but it is not a common cause of DIC.
**Option C:** Pulmonary embolism - Pulmonary embolism is a result of a pro-coagulant state, but it is not a common cause of DIC.
**Clinical Pearl / High-Yield Fact**
Mnemonically, DIC can be remembered by the acronym "Sepsis, Trauma, Malignancy, and Amniotic Fluid Embolism" (STMAE), which are common causes of the condition.
**Correct Answer: C. Malignancy.**