Fetal Growth and Development 1 Flashcards
Determination of gestational age where in the time elapsed since the first day of the last menstrual period is computed.
Gestational age or Menstrual age
Determination of gestational age preferred by embryologists because they are more after
when the ovum is being produced rather than
the last menstrual period
Ovulation age or Postconceptional age
Computation used to determine EDD (expected date of delivery).
Naegele’s Rule
Formula of Naegele’s Rule
Naegele’s rule = -3 (months) and + 7 days
○ subtract 3 months then add 7 days to
the LMP (last menstrual period) of the
patient to determine menstrual history
This imaging is the best gauge for patients with irregular
menstrual period or with unknown LMP.
Sonography
Imaging requested when the
mother is not showing (baby bump) to establish quadrant length, age of gestation and expected
date of delivery (EDD).
Transvaginal ultrasound
Specific imaging requested when mother isshowing (baby bump)since fetal biometry can do the job
Pelvic ultrasound
It is where fertilization takes place
Ampulla
Sperm and Ovum forms _____.
Zygote
Reason why pregnancy tests appear positive when pregnant is due to the presence of
hCG
The embryonic period
(last 8 weeks)is considered to be the critical period because it is when ______ takes place.
organogenesis
True or False
During embryonic period,
there is a true intervillous space that contains
maternal blood and villous cores in which
angioblastic chorionic mesoderm can be
distinguished
True
Week when fetal blood vessels in the
chorionic villi appear
3rd week
cardiovascular system has formed → a true circulation is established both
within the embryo and between the embryo and
the chorionic villi
What week during pregancy?
4th week
First organ to be formed
Heart
Week where heart is completely formed.
End of 6th week
Period in pregnancy designated by most embryologists to begin 8
weeks after fertilization → or 10 weeks after
onset of last menses (LMP)
Fetal period
Best time to start Ca+ supplementation since centers of ossification have appeared in most of
the fetal bones
12 weeks of gestation (Fetal period)
Given to prevent neural tube defects and if the patient.
And if patient is anemic, _____ is added.
Folic acid, Ferrous sulfate
Week during pregnancy where gender can be determined.
16 weeks gestation
It covers the fetus body for protection and thermoregulation.
Downy lanugo/ lanugo
How do you gauge a pregnant women that she is at 20 weeks of gestation or 5 months?
If the fundus of the uterus is palpable at the level of navel/umbilicus.
This is often experienced due to the displacement
of the stomach since the uterus is at the level
of the umbilicus making it an abdominal organ
GERD
Age of pregnancy where comorbids of the mother can be detected.
6 months or 24 weeks
