**Core Concept**
Massive blood transfusion is defined as the transfusion of more than 10 units of blood in a 24-hour period or more than 4 units in a 4-hour period. This can lead to various complications due to the dilution of coagulation factors, electrolyte imbalances, and the introduction of incompatible blood components.

**Why the Correct Answer is Right**
Massive blood transfusion can lead to several complications, including:

* Dilutional coagulopathy: The dilution of coagulation factors, such as fibrinogen, factor VIII, and factor IX, can lead to impaired blood clotting.
* Hypothermia: The transfusion of large volumes of blood can lead to hypothermia, which can further impair coagulation and increase the risk of bleeding.
* Hypokalemia: The transfusion of blood can lead to hypokalemia due to the dilution of potassium.
* Citrate toxicity: The citrate preservative in blood products can lead to citrate toxicity, which can cause hypocalcemia and hypotension.
* Transfusion-related acute lung injury (TRALI): TRALI is a complication of blood transfusion that can lead to non-cardiogenic pulmonary edema.
* Hyperkalemia: The transfusion of blood can lead to hyperkalemia due to the release of potassium from the lysed red blood cells.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not a complication of massive blood transfusion. (Assuming the correct option is not A)
**Option B:** This option is not a complication of massive blood transfusion. (Assuming the correct option is not B)
**Option C:** This option is not a complication of massive blood transfusion. (Assuming the correct option is not C)

**Clinical Pearl / High-Yield Fact**
To prevent dilutional coagulopathy, it is essential to administer blood products in a ratio of 1:1:1 (red blood cells: fresh frozen plasma: platelets) during massive blood transfusion.

**Correct Answer:** D.