An infertile couple is considering zygote intrafallopian transfer (ZIFT) and ask how it differs from in vitro fertilization (IVF). The nurse clarifies that in ZIFT the:
a. fallopian tubes are artificially lined with material that nourishes the gamete.
b. fertilized egg is placed in the fallopian tube.
c. fallopian tubes are cleared with injected air.
d. fallopian tube is implanted with unferti-lized ova and sperm.
B
The zygote intrafallopian transfer (ZIFT) refers to the placement of the fertilized ovum into the fallopian tube at the zygote stage of development. During in vitro fertilization (IVF-ET) the woman's eggs are collected from the ovary, fertilized in the laboratory, and transferred into the uterus at the embryo stage of development.
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