How does Calcium Chloride function in the body?

Calcium Chloride plays a critical role in stabilizing myocardial membranes, particularly in the context of certain cardiac conditions. When there is increased potassium in the bloodstream, such as in hyperkalemia, or during cardiac arrest, the myocardial cell membranes become less stable and more prone to arrhythmias. Calcium is vital for the proper functioning of the heart; it helps to regulate the electrical activity of cardiac muscle cells.

By administering Calcium Chloride, especially during emergencies, it increases the extracellular concentration of calcium ions, which helps to stabilize the myocardial membranes. This stabilization reduces the likelihood of dangerous heart arrhythmias and supports normal cardiac function. This action is crucial in clinical scenarios like cardiac arrest or hyperkalemia, where immediate restoration of heart rhythm is necessary.