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Obstet Gynecol. 2001 May;97(5 Pt 2):805-7.

Caffeine-induced hypokalemic paralysis in pregnancy.

Author information

1
Department of Obstetrics and Gynecology, Texas Tech University Health Science Center, 1400 Wallace Boulevard, Amarillo, TX 79106, USA. sue@cortex.ama.ttuhsc.edu

Abstract

BACKGROUND:

Excessive ingestion of caffeine can induce hypokalemia, which affects the neuromuscular system and can lead to paralysis.

CASE:

A 24-year-old woman, gravida 3, para 2-0-0-2 at 33 weeks' gestation presented with muscular paralysis and hypokalemia secondary to drinking 6 to 7 L of cola per day with little other oral intake. After potassium replacement and stopping caffeine ingestion, the symptoms resolved quickly.

CONCLUSION:

The physiologic changes of pregnancy might potentiate the effect of caffeine on serum potassium concentration.

PMID:
11336759
[Indexed for MEDLINE]

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