Mild pregnancy-induced hypertension at term

N. F. Gant

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

It was elected to induce labor in Mrs AB after excluding any evidence of severe preeclampsia. Both the fetus and Mrs AB were evaluated. The history, physical examination, and laboratory results were all within normal limits for Mrs AB. Her fetus was appropriately grown for gestational age with an estimated fetal weight of 3,200 g. There was ample but not excessive amniotic fluid noted clinically and by sonography. An amniocentesis to document fetal lung maturation was not done. Two hours after commencing parenteral magnesium sulfate therapy, an oxytocin induction of labor was begun. Fetal well-being was assessed using continuous external electronic monitoring of the fetal heart rate and uterine contractions. Three hours after the induction was started, the cervix was completely effaced and 3 cm dilated. The fetal head was at O station. At this time, the fetal membranes were ruptured and clear amniotic fluid was noted. An internal uterine pressure catheter was inserted, and a fetal scalp electrode applied. The patient received 75 mg of meperidine and 25 mg of promethazine intramuscularly at this time. Five hours after commencing the induction of labor, both mother and fetus were tolerating the labor well. The cervix was 7 cm dilated, and the fetal head was at +2/+5 station. The oxytocin induction was discontinued and another 75 mg dose of meperidine was administered. Blood pressure readings between 150/100 mm Hg and 140/98 mm Hg were recorded throughout labor. Urine output exceeded 150 mL/h. The patient delivered a 3,070-g male infant approximately 9 hours after the start of the induction. The Apgar scores at 1 and 5 minutes were 8 and 9, respectively. An umbilical arterial cord pH was 7.32 and all gasses were normal. We routinely obtain umbilical cord pHs and gasses on all neonates whose mothers have hypertension. Intramuscular magnesium sulfate was continued for 24 hours postpartum and then discontinued. Mother and infant were discharged on the evening of the second postpartum day. Maternal blood pressure was 120/70 mm Hg at the time of discharge, and all laboratory values were within normal ranges.

Original languageEnglish (US)
Pages (from-to)70-78
Number of pages9
JournalSeminars in Perinatology
Volume18
Issue number2
StatePublished - 1994

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Pregnancy Induced Hypertension
Mothers
Induced Labor
Magnesium Sulfate
Meperidine
Fetus
Umbilical Cord
Oxytocin
Amniotic Fluid
Cervix Uteri
Postpartum Period
Head
Blood Pressure
Promethazine
Extraembryonic Membranes
Uterine Contraction
Fetal Weight
Fetal Heart Rate
Amniocentesis
Apgar Score

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

Cite this

Mild pregnancy-induced hypertension at term. / Gant, N. F.

In: Seminars in Perinatology, Vol. 18, No. 2, 1994, p. 70-78.

Research output: Contribution to journalArticle

Gant, NF 1994, 'Mild pregnancy-induced hypertension at term', Seminars in Perinatology, vol. 18, no. 2, pp. 70-78.
Gant, N. F. / Mild pregnancy-induced hypertension at term. In: Seminars in Perinatology. 1994 ; Vol. 18, No. 2. pp. 70-78.
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