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  • Title: Effect of albuterol treatment on subsequent dialytic potassium removal.
    Author: Allon M, Shanklin N.
    Journal: Am J Kidney Dis; 1995 Oct; 26(4):607-13. PubMed ID: 7573015.
    Abstract:
    End-stage renal disease patients presenting with severe hyperkalemia are frequently treated with albuterol to lower their plasma potassium acutely, until emergent hemodialysis can be initiated. Such treatment stimulates potassium shifts from the extracellular to the intracellular fluid compartments. The resulting reduction of potassium concentration gradient between the blood and dialysate may potentially attenuate the efficacy of potassium removal during the ensuing hemodialysis treatment. To evaluate the effect of prior albuterol treatment on dialytic potassium removal, seven chronic hemodialysis patients were studied prospectively on two separate occasions. In one study the patients received 20 mg nebulized albuterol 30 minutes before dialysis; in the control study, albuterol treatment was omitted. Plasma potassium decreased 30 minutes after albuterol treatment (-0.84 +/- 0.06 mmol/L; P < 0.001) and remained unchanged in the corresponding period of the control experiment. Plasma potassium decreased during dialysis in both experimental protocols, but was significantly lower throughout dialysis in the albuterol study, as compared with the control study. Cumulative dialytic potassium removal was significantly lower following albuterol pretreatment compared with the control experiment (29.0 +/- 5.7 mmol v 49.6 +/- 7.0 mmol; P < 0.001). These observations suggest that acute albuterol therapy in patients with end-stage renal disease may substantially decrease potassium removal in the ensuing hemodialysis session. This may lead to rebound hyperkalemia several hours after the dialysis treatment.
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