Massive transfusion in previous healthy adult male can cause hemorrhage due to –
**Core Concept**
Massive transfusion in a healthy adult male can cause hemorrhage due to the development of **TTP (Thrombotic Thrombocytopenic Purpura) or TRALI (Transfusion-Related Acute Lung Injury)**. This is a rare but life-threatening complication of massive blood transfusion, which can occur due to the introduction of incompatible blood components into the recipient's circulation.
**Why the Correct Answer is Right**
Massive blood transfusion can cause TTP or TRALI due to the dilutional effect of the transfused blood components on the recipient's platelets, coagulation factors, and fibrinogen. The transfused blood may contain antibodies against the recipient's platelets (in the case of TTP) or leukocyte antibodies that can cause TRALI. The recipient's body may also respond to the transfused blood by activating the complement system, leading to the formation of thrombi and the consumption of platelets and coagulation factors.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify the underlying mechanism of TTP or TRALI. While it is true that massive transfusion can cause hemorrhage, this option does not provide a clear explanation.
**Option B:** This option is incorrect because it is a general statement that does not address the specific mechanism of TTP or TRALI.
**Option C:** This option is incorrect because it is not directly related to the development of TTP or TRALI.
**Clinical Pearl / High-Yield Fact**
The key to preventing TTP and TRALI is to follow strict blood transfusion protocols, including careful compatibility testing and the use of blood components that are matched to the recipient's blood type. Additionally, it is essential to monitor the recipient's platelet count, coagulation factors, and fibrinogen levels closely during massive blood transfusion.
**Correct Answer: D.**