Which medication is used for treatment of severe hyperkalemia with wide complex tachycardia?

The use of Calcium Chloride in the treatment of severe hyperkalemia, especially when presenting with wide complex tachycardia, is crucial because it works to stabilize the myocardial cell membranes. Hyperkalemia can lead to elevated potassium levels in the blood, which increases the risk of life-threatening arrhythmias, like wide complex tachycardia. Calcium acts as an antagonist to the effects of elevated potassium on the heart and helps reduce the risk of potential cardiac arrest.

In acute situations, administering Calcium Chloride can rapidly mitigate the impacts of high potassium, allowing for a safer cardiac environment until further interventions can be implemented, such as insulin and glucose therapy or renal interventions.

Other medications listed have different indications or mechanisms of action that would not effectively address the immediate risks associated with severe hyperkalemia combined with wide complex tachycardia.