Rnc Ob Part 2: Fetal Assessment
Questions And Answers With Verified
Solutions (GRADED A+)
Biochemical - ANSWER✔✔Cervical and vaginal fluid can be tested for
___________ markers to evaluate for presence of congenital abnormalities
Week - ANSWER✔✔Transvaginal Ultrasound can be used to measure crown
rump length of the fetus in first trimester which helps determine approximate
gestational age +/- one ________
CVS - ANSWER✔✔________ is performed by inserting a catheter into the uterus
to obtain placental villi for testing . The tissue may also be obtained through
abdominal wall if needed to safely reach the placenta
10-13 - ANSWER✔✔CVS can be used to do chromosomal, DNA, and enzyme
analysis on placental tissue and is usually performed at _________weeks. One of
the earliest tests to reassure parents provide information needed to decide whether
to continue the pregnancy
10-12 - ANSWER✔✔Uterine fundus can be palpated above the symphysis pubis
by _______ weeks
20 - ANSWER✔✔From gestation 16-36 weeks, fundal height can be used to
estimate weeks of gestation. By week ______, fundus is usually at umbilicus.
Transvaginal - ANSWER✔✔During first trimester, the procedure most commonly
used to confirm fetal viability is ______________ ultrasound
,10 - ANSWER✔✔SGA infants are those whose weight places them below the
____th percentile for gesatational age
IUGR - ANSWER✔✔When fetus does not fulfill his/her growth potential for any
reason, diagnosis is _________. This is associated with oligohydramnios and PreE
Symmetric - ANSWER✔✔___________ IUGR babies have both head and body
that are small.
Early - ANSWER✔✔Symmetric IUGR tends to occur _________ in pregnancy
and is commonly caused by chromosomal abnormalities and infections
Asymmetric - ANSWER✔✔____________ IUGR babies have small body, but
head is normal size.
Late - ANSWER✔✔Asymmetric IUGR occurs _________ in pregnancy and is
commonly caused by placental insufficiency and PreE
90 - ANSWER✔✔LGA babies are those whose weight places them above the
______th percentile for gestational age
Diabetes - ANSWER✔✔The main pathological cause for LGA is maternal ______
Insulin - ANSWER✔✔Infants exposed to elevated levels of glucose produce
elevated amounts of _________ which has an anabolic effect on the growing fetus
leading to macrosomia
, 1-2 - ANSWER✔✔LGA babies are most likely to develop hypoglycemia _______
hours after birth
LGA - ANSWER✔✔_____ babies are more at risk for hypoglycemia,
hyperbilirubinemia, hypocalcemia, hypomagnesemia, hyperviscocity d/t
polycythemia, lethargy, RDS, and birth defects
Amniocentesis - ANSWER✔✔_________is the insertion of a 20-22 gauge spinal
needle through abdominal wall to obtain amniotic fluid for analysis. Fluid is
cultured and genetic studies can be done. Biochemical disorders, CNS anomalies,
ventral wall defects and other disorders can be diagnosed.
14 - ANSWER✔✔If an amniocentesis is done before ______ weeks, the sample
can only contain 1 mL per week of gestation. Early amniocentesis is much more
difficult and carries higher risk of fetal death, ROM, and club feet
14-20 - ANSWER✔✔Most amniocentesis procedures are done at _________
gestation
PUBS - ANSWER✔✔_________ is AKA cordocentesis. It is a procedure to
obtain fetal blood cells in order to assess RBC and platelet status. A 22 gauge
spinal needle is inserted into umbilical vein at or near place where it joins placenta
while using ultrasound. May be done to verify results from other tests
24-48 - ANSWER✔✔After PUBS, fetal blood cells are used for genetic analysis
with karyotyping with results available within ________ hours. Immunological,
hematological, and metabolic studies can be done. Fetal acid-base status can be
determined.
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