A patient presents with peaked T waves, wide QRS, and a potassium level of 6.2 mEq/L. What is the first-line emergency management?

• A. Administer calcium gluconate IV to stabilize the cardiac membrane, followed by measures to shift potassium intracellular (e.g., insulin with glucose, albuterol), and plan for possible dialysis if refractory.
• B. Administer calcium gluconate IV to stabilize the cardiac membrane only; no further steps.
• C. Administer IV bicarbonate as first line.
• D. Initiate dialysis immediately without stabilization.

Answer: (A)