Which medication might a physician order for a dialysis patient in cardiac arrest?

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Multiple Choice

Which medication might a physician order for a dialysis patient in cardiac arrest?

Dialysis patients commonly develop metabolic acidosis and elevated potassium levels. During cardiac arrest in this setting, correcting the acid-base disturbance can help restore cellular function and improve how the heart responds to resuscitation efforts. Sodium bicarbonate administered IV buffers the excess hydrogen ions, raises pH, and promotes a shift of potassium into cells, which can help counteract the life-threatening hyperkalemia and acidosis that often contribute to arrest in kidney failure. Epinephrine remains a standard part of resuscitation, but it doesn’t directly address the underlying metabolic derangements from renal failure. Calcium gluconate is used to stabilize the heart in hyperkalemia, and magnesium sulfate is indicated for specific arrhythmias like torsades de pointes or eclampsia; they don’t target the common dialysis-associated problems as directly as bicarbonate does. Therefore, sodium bicarbonate is the most fitting choice for a dialysis patient in cardiac arrest because it targets the acid–base and potassium disturbances typical in this context.

Dialysis patients commonly develop metabolic acidosis and elevated potassium levels. During cardiac arrest in this setting, correcting the acid-base disturbance can help restore cellular function and improve how the heart responds to resuscitation efforts. Sodium bicarbonate administered IV buffers the excess hydrogen ions, raises pH, and promotes a shift of potassium into cells, which can help counteract the life-threatening hyperkalemia and acidosis that often contribute to arrest in kidney failure.

Epinephrine remains a standard part of resuscitation, but it doesn’t directly address the underlying metabolic derangements from renal failure. Calcium gluconate is used to stabilize the heart in hyperkalemia, and magnesium sulfate is indicated for specific arrhythmias like torsades de pointes or eclampsia; they don’t target the common dialysis-associated problems as directly as bicarbonate does. Therefore, sodium bicarbonate is the most fitting choice for a dialysis patient in cardiac arrest because it targets the acid–base and potassium disturbances typical in this context.

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