Which complication could occur as a result of percutaneous umbilical blood sampling (PUBS)?
a. Postdates pregnancy
b. Fetal bradycardia
c. Placenta previa
d. Uterine rupture
ANS: B
PUBS is an invasive test whereby a needle is inserted into the umbilical cord to obtain blood as the basis for diagnostic testing with the guidance of ultrasound technology. The most common complication is fetal bradycardia, which is temporary. PUBS has no effect on extending the gestation of pregnancy, the development of placenta previa, or uterine rupture.
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