Potassium supplementation in ritodrine-induced hypokalemia

K Reed Peters, Barbara Jean Hurlbert, Jerry D. Edelman, Robert C. Goodlin

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Acute hypokalemia occurs during infusion of β2 agonists for tocolysis. This study examines the efficacy of supplemental potassium in treating this hypokalemia. Four groups of dogs were anesthetized and given lactated Ringer's solution (group I), potassium chloride (group II), ritodrine hydrochloride (group III), and ritodrine plus potassium (group IV). Arterial blood gases, pH, and serum and urinary electrolytes were measured. Results were analyzed by an analysis of variance. Serum potassium fell in groups I and III, rose in group II, and remained stable in group IV. Urinary potassium levels in groups that received ritodrine (III and IV) were not different from control levels. Potassium given with ritodrine will prevent hypokalemia. However, the risks of hyperkalemia exist if vigorous replacement is undertaken. There were no dysrhythmias and no adverse effects in any of the hypokalemic animals. Therefore, the routine administration of potassium is not advocated even in obstetric patients who undergo general anesthesia.

Original languageEnglish (US)
Pages (from-to)393-396
Number of pages4
JournalAmerican Journal of Obstetrics and Gynecology
Volume149
Issue number4
DOIs
StatePublished - Jun 15 1984

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Ritodrine
Hypokalemia
Potassium
Tocolysis
Hyperkalemia
Potassium Chloride
Serum
General Anesthesia
Electrolytes
Obstetrics
Analysis of Variance
Gases
Dogs

ASJC Scopus subject areas

  • Obstetrics and Gynecology

Cite this

Potassium supplementation in ritodrine-induced hypokalemia. / Peters, K Reed; Hurlbert, Barbara Jean; Edelman, Jerry D.; Goodlin, Robert C.

In: American Journal of Obstetrics and Gynecology, Vol. 149, No. 4, 15.06.1984, p. 393-396.

Research output: Contribution to journalArticle

Peters, K Reed ; Hurlbert, Barbara Jean ; Edelman, Jerry D. ; Goodlin, Robert C. / Potassium supplementation in ritodrine-induced hypokalemia. In: American Journal of Obstetrics and Gynecology. 1984 ; Vol. 149, No. 4. pp. 393-396.
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