Serum electrolytes during various phases of menstrual cycle.

The corollary follow up study carried presents variation in electrolyte content of serum during menstrual, follicular, ovulatory and luteal phases of menstrual cycle. Variation in sodium, potassium and chloride were found to be parallel with each other. Their level increase significantly from follicular to ovulatory phase and falls significantly during luteal phase. Bicarbonate levels are higher in follicular and luteal phases while they are lower in menstrual and ovulatory phases.