## Core Concept
Electrical injuries result from the passage of electrical current through the body, causing damage to tissues and organs. The severity and type of injury depend on factors such as the intensity of the current, duration of exposure, and the path the current takes through the body. Electrical injuries can cause both external and internal damage.

## Why the Correct Answer is Right
The correct answer, ., implies that one of the options does not typically result from electrical injury. Electrical injuries can cause cardiac arrest (due to disruption of normal heart rhythm), muscle contractions leading to falls or other mechanical injuries, and burns (both external and internal). The type of injury sustained often relates to the pathway of the electrical current and the resistance of the tissues it encounters.

## Why Each Wrong Option is Incorrect
- **Option A:** Typically results from electrical injury.
- **Option B:** Also a known consequence of electrical injury.
- **Option C:** Similarly, a recognized effect of electrical injury.

## Clinical Pearl / High-Yield Fact
A key point to remember is that the external entry and exit wounds from electrical injuries can be small and deceptively benign, belied by significant internal damage.

## Correct Answer: D.