A -year-old man with a history of stage chronic kidney disease presents to the emergency department complaining of generalized muscle weakness and palpitations that started earlier today. His vital signs are stable, but his electrocardiogram reveals peaked T waves and widened QRS complexes. Laboratory results show a serum potassium level of mEq/L. Arrange the following pharmacologic interventions in the most appropriate chronological sequence for the acute stabilization and management of this patient.
- 1Intravenous calcium gluconate
- 2Intravenous regular insulin and dextrose
- 3Oral sodium zirconium cyclosilicate
Cevap
The correct sequence for managing severe hyperkalemia with electrocardiographic changes is: 1) Intravenous calcium gluconate, 2) Intravenous regular insulin and dextrose, 3) Oral sodium zirconium cyclosilicate.
The correct sequence for managing severe symptomatic hyperkalemia prioritizes immediate life threats before definitive treatment. The first and most critical step is stabilizing the cardiac myocyte membrane with intravenous calcium gluconate to prevent fatal arrhythmias. Once the myocardium is protected, the second step is rapidly shifting potassium from the extracellular space to the intracellular space using intravenous regular insulin paired with dextrose. The final step is definitively removing excess potassium from the body, which can be accomplished using gastrointestinal potassium binders such as oral sodium zirconium cyclosilicate.
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Anahtar Kavram
Management sequence of severe symptomatic hyperkalemia