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1018 Gynaecology & Obstetrics

A 26-year-old primigravid woman at 42 weeks’ gestation comes to the labor and delivery ward for induction of labor. The prenatal course was significant for a positive group B Streptococcus culture performed at 35 weeks. Antenatal testing over the past 2 weeks has been unremarkable. The patient is staed on lactated Ringer’s IV solution. Sterile vaginal examination shows that the patient’s cervix is long, thick, and closeD. Prostaglandin (PGE2) gel is placed into the vagina, and electronic fetal hea rate monitoring is continueD. In approximately 60 minutes, the fetal hea rate falls to the 90s, as the tocodynamometer shows the uterus to be contracting every 1 minute with essentially no rest in between contractions. Which of the following was most likely the cause of the uterine hyper stimulation?

AInfection
BIV fluids
CPostdates pregnancy
DProstaglandin (PGE2) gel
Gynaecology & Obstetrics
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1025 Gynaecology & Obstetrics

True about lecithin – sphingomyelin ratio is

AConcentration of Lecithin and sphingomyelin before 34 weeks in amniotic fluid is equal
BConcentration of Lecithin is more than sphingomyelin in amniotic fluid before 34 weeks.
CAfter 32 to 34 weeks, concentration of sphingomyelin relative to Lecithin begins to rise
DThere is increased risk of Respiratory distress syndrome if L/S ratio is > 2
Gynaecology & Obstetrics
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