**Core Concept**
Hyperkalemia is a life-threatening condition characterized by elevated serum potassium levels, which can lead to cardiac arrhythmias and arrest. The **hyperkalemia treatment** approach involves stabilizing cardiac membranes, shifting potassium into cells, and ultimately removing excess potassium from the body.

**Why the Correct Answer is Right**
The correct answer is not provided, however, the immediate treatment for hyperkalemia with significant ECG changes typically involves administering **calcium gluconate** to stabilize cardiac membranes, followed by **insulin** and **glucose** to shift potassium into cells.

**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific answer choice, it's challenging to provide a detailed explanation.
**Option B:** Similarly, without the specific details, it's hard to comment.
**Option C:** Typically, this could be incorrect if it doesn't involve a method to immediately counteract the cardiac effects of hyperkalemia.
**Option D:** This might be incorrect if it doesn't address the urgent need to stabilize cardiac membranes or lower potassium levels.

**Clinical Pearl / High-Yield Fact**
In hyperkalemia with ECG changes, **calcium gluconate** is administered to antagonize the cardiac effects of hyperkalemia, and **insulin** and **glucose** are given to drive potassium into cells.

**Correct Answer:** Not provided in the query.