What is the recommended initial management of severe hyperkalemia with ECG changes?

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Multiple Choice

What is the recommended initial management of severe hyperkalemia with ECG changes?

When potassium is dangerously high and the ECG shows changes, the priority is to protect the heart first, then reduce the potassium, and finally remove it from the body. The most immediate step is giving intravenous calcium to stabilize the cardiac membrane. This does not lower potassium, but it raises the threshold for excitation and helps prevent life-threatening arrhythmias as levels come down. After the heart is stabilized, you shift potassium into cells to lower the serum level quickly. Insulin given with glucose drives potassium from the extracellular space into cells. A beta-agonist like albuterol can be added as an adjunct to enhance intracellular shifting if available. Following stabilization and shifting, you remove potassium from the body. This can be achieved with diuretics or, in patients with renal failure or when rapid removal is needed, dialysis. The process is monitored continuously with ECG to assess for improvement and detect any ongoing risk. So the correct approach is to administer IV calcium to stabilize, then use insulin with glucose (and consider additional shifting agents as needed), and proceed to remove potassium via diuretics or dialysis, with ECG monitoring throughout.

When potassium is dangerously high and the ECG shows changes, the priority is to protect the heart first, then reduce the potassium, and finally remove it from the body. The most immediate step is giving intravenous calcium to stabilize the cardiac membrane. This does not lower potassium, but it raises the threshold for excitation and helps prevent life-threatening arrhythmias as levels come down.

After the heart is stabilized, you shift potassium into cells to lower the serum level quickly. Insulin given with glucose drives potassium from the extracellular space into cells. A beta-agonist like albuterol can be added as an adjunct to enhance intracellular shifting if available.

Following stabilization and shifting, you remove potassium from the body. This can be achieved with diuretics or, in patients with renal failure or when rapid removal is needed, dialysis. The process is monitored continuously with ECG to assess for improvement and detect any ongoing risk.

So the correct approach is to administer IV calcium to stabilize, then use insulin with glucose (and consider additional shifting agents as needed), and proceed to remove potassium via diuretics or dialysis, with ECG monitoring throughout.

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