Doppler ultrasound and maternal erythrocyte fragility.
Maternal erythrocyte fragility was studied in eight controls and in 16 women exposed to Doppler ultrasound monitoring during labor. Blood samples were taken before and after Doppler monitoring and no significant change in erythrocyte fragility was seen, although there was a trend toward increased fragility in patients exposed continuously for more than seven hours.
D000293:Adolescent; D000328:Adult; D004301:Doppler Effect; D005260:Female; D005323:Fetal Monitoring / Q000009:adverse effects* / Q000379:methods; D006461:Hemolysis; D006801:Humans; D007744:Obstetric Labor Complications / Q000175:diagnosis; D009996:Osmotic Fragility; D055585:Physical Phenomena; D010825:Physics; D011247:Pregnancy; D014465:Ultrasonics / Q000009:adverse effects*; D014463:Ultrasonography