Can intravenous potassium chloride save the patient?
Whether a patient can be successfully rescued after potassium chloride injection depends on individual circumstances and varies from person to person.
Elevated potassium levels can cause cardiac arrest, but this typically occurs only when potassium reaches a certain threshold. Serum potassium levels exceeding 6.5 mmol/L pose significant danger. Clinically, excessive intake of potassium chloride—especially in patients with impaired or failed kidney function, heart failure, or those receiving blood transfusions—can lead to hyperkalemia. All medications containing potassium ions should be discontinued immediately. Intravenous administration of glucose-insulin solution can help promote the movement of potassium ions into cells. Potassium-wasting diuretics such as furosemide can enhance renal excretion of potassium from the bloodstream. In cases of severe renal impairment or heart failure that cannot be promptly corrected, emergency hemodialysis may be required to rapidly reduce serum potassium levels.
Close monitoring of the patient's serum potassium levels and regular electrocardiogram (ECG) examinations are also essential.