lOMoARcPSD|56128505
Maternal and Child - OB/Peds Hesi Nclex notes and study
guides, plus Term four notes with OB and
Medical-Surgical Nursing II (North-West College)
Scan to open on Studocu
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Maternal and Child
Antepartum-stage of fertilization and fetal growth 47-40weeks
Intrapartum- baby will DELIVER!! (Process of Delivery)
Postpartum-
Fertilization and Implantation
Fertilization:
Occurs in the upper region of the fallopian tubes within 12 hours of ovulation and 2 to 3 days of
insemination, the average durations of viability for the ovum and sperm, respectively.
Once the ovum is fertilized, its membrane undergoes changes that prevent the entry of other
sperm.
Sperm carry an X and a Y chromosome: XY is male, XX female.
Implantation:
The zygote propels itself down the fallopian tube, toward the uterus.
Implantation in the uterine wall occurs 6 to 10 days after ovulation.
Stages of Pregnancy
The third through eighth weeks after conception are called the embryonic stage.
The fetal period starts 9 weeks after conception and lasts through the end of gestation.
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Fetal Development
Before week 20 is considered abortion or miscarriege
Preterm 20 to 36 weeks
Full term 37-40 weeks
Post term 41- ⇧
Embryonic Stage
Week 1
Free-floating blastocyst
Weeks 2 to 3
The embryo is 1.5 to 2 mm long.
Lung buds appear.
Blood circulation begins.
The heart is tubular.
The neural plate becomes the brain and spinal cord.
Embryonic Stage
Week 5-
The embryo is 0.4 to 0.5 cm long.
The embryo weighs 0.4 g.
Double heart chambers are visible.
The heart beats.
Limb buds begin to form.
Week 6-detect heartbeat
Week 8
The embryo is 3 cm long.
The embryo weighs 2 g.
The eyelids begin to fuse.
The circulatory system through the umbilical cord is well established.
Every organ system is present.
Fetal Period
Week 12
Fetus is 6 to 9 cm long.
Fetus weighs 19 g.
Face is well formed.
Limbs are long and slender.
Kidneys begin to form urine.
Spontaneous movements occur.
Heartbeat is detectable with a Doppler transducer between 10 and 12 weeks.
Downloaded by John Wangari ()
Maternal and Child - OB/Peds Hesi Nclex notes and study
guides, plus Term four notes with OB and
Medical-Surgical Nursing II (North-West College)
Scan to open on Studocu
Studocu is not sponsored or endorsed by any college or university
Downloaded by John Wangari ()
, lOMoARcPSD|56128505
Maternal and Child
Antepartum-stage of fertilization and fetal growth 47-40weeks
Intrapartum- baby will DELIVER!! (Process of Delivery)
Postpartum-
Fertilization and Implantation
Fertilization:
Occurs in the upper region of the fallopian tubes within 12 hours of ovulation and 2 to 3 days of
insemination, the average durations of viability for the ovum and sperm, respectively.
Once the ovum is fertilized, its membrane undergoes changes that prevent the entry of other
sperm.
Sperm carry an X and a Y chromosome: XY is male, XX female.
Implantation:
The zygote propels itself down the fallopian tube, toward the uterus.
Implantation in the uterine wall occurs 6 to 10 days after ovulation.
Stages of Pregnancy
The third through eighth weeks after conception are called the embryonic stage.
The fetal period starts 9 weeks after conception and lasts through the end of gestation.
Downloaded by John Wangari ()
, lOMoARcPSD|56128505
Fetal Development
Before week 20 is considered abortion or miscarriege
Preterm 20 to 36 weeks
Full term 37-40 weeks
Post term 41- ⇧
Embryonic Stage
Week 1
Free-floating blastocyst
Weeks 2 to 3
The embryo is 1.5 to 2 mm long.
Lung buds appear.
Blood circulation begins.
The heart is tubular.
The neural plate becomes the brain and spinal cord.
Embryonic Stage
Week 5-
The embryo is 0.4 to 0.5 cm long.
The embryo weighs 0.4 g.
Double heart chambers are visible.
The heart beats.
Limb buds begin to form.
Week 6-detect heartbeat
Week 8
The embryo is 3 cm long.
The embryo weighs 2 g.
The eyelids begin to fuse.
The circulatory system through the umbilical cord is well established.
Every organ system is present.
Fetal Period
Week 12
Fetus is 6 to 9 cm long.
Fetus weighs 19 g.
Face is well formed.
Limbs are long and slender.
Kidneys begin to form urine.
Spontaneous movements occur.
Heartbeat is detectable with a Doppler transducer between 10 and 12 weeks.
Downloaded by John Wangari ()
