## Core Concept
Hyperkalemia is a condition characterized by elevated potassium levels in the blood, which can lead to serious cardiac arrhythmias. Treatment typically involves measures to rapidly lower potassium levels, shift potassium into cells, or counteract the cardiac effects of hyperkalemia.

## Why the Correct Answer is Right
The correct answer, , is not used for the treatment of hyperkalemia. Typically, treatments include calcium gluconate (to stabilize cardiac membranes), insulin and glucose (to drive potassium into cells), beta-2 agonists like albuterol, and potassium-binding resins or dialysis for more severe cases.

## Why Each Wrong Option is Incorrect
* **Option A:** - This option is actually **Sodium bicarbonate**, which can help in shifting potassium into cells in the setting of acidosis, although its use is more nuanced.
* **Option B:** - This option refers to **Insulin**, often used with glucose to rapidly lower potassium levels by driving it into cells.
* **Option C:** - This option could represent **Albuterol**, a beta-2 agonist used to treat hyperkalemia by promoting cellular uptake of potassium.

## Clinical Pearl / High-Yield Fact
A key point to remember is that in the emergency treatment of hyperkalemia, **calcium gluconate** is used to stabilize cardiac membranes but does not lower potassium levels. It is crucial to act quickly to prevent cardiac complications.

## Correct Answer: D.