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Title: Diagnostics in Maternity
Description: Gives a simple form of remembering procedures during pregnancy and pictures included
Description: Gives a simple form of remembering procedures during pregnancy and pictures included
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Tests to Assess Fetal
Well-Being
Ultrasound imaging:
High frequency waves are
used to visualize internal
organs or tissues within the
body (e
...
, fetus, placenta,
or moving object such as a
beating fetal heart); also
called ultrasonography; a
transvaginal probe or
abdominal transducer is
used
...
Chorionic villus
sampling:
A first- trimester
alternative to
amniocentesis for prenatal
diagnosis of some
conditions
...
Procedure is noninvasive, is
painless, and lasts approximately 20 min
...
g
...
Echo Doppler
scan detects fetal heart activity at 6-10 weeks’
gestation
...
Performed at 10-12 weeks’
gestation
...
A thin needle is inserted through the abdominal and
uterine walls to withdrawn amniotic fluid into a
syringe (with cast-off cells) Sufficient fluid must be
present for the test to be done (15-17 weeks’ gestation
and 12-14 weeks’ gestation for some disorders)
...
The two
substances are surfactants
...
Without
surfactants, the small air
sacs in your lungs (alveoli)
would collapse, preventing
oxygen from entering the
bloodstream
...
Your provider probably won't order
this test if your baby may be born at less than 32 week
...
Early Pregnancy
-Used to assess genetic disorders
-Tests for level of alphafetoprotein (AFP), which is also
present in maternal blood
-High AFP levels found in neural
tube defects such as spina bifida
(incomplete development of skull
and brain
...
You may be at risk for early
delivery if you have any of these
conditions:
•
•
•
In a developing fetus, the lungs are the critical factor in
finding out whether a baby is ready for life outside the
womb
...
•
•
Gestational diabetes
High blood pressure in
pregnancy
Your water breaks early
(premature rupture of
amniotic membranes)
The placenta can't fully
support the developing
fetus (placental
insufficiency)
Rh disease
(erythroblastosis)
Nonstress test (NST):
Assessment of fetal wellbeing by evaluating the
fetal heart’s ability to
accelerate (speed up) in
association with fetal
movement by using an
electronic fetal monitor not
be recorded for the test to
be reactive
...
test
...
Accelerations occur either spontaneously or in
association with fetal movement
...
; one belt and a device to detect
fetal heart rate (FHR) and the other belt detects fetal
movement; the woman is given a button to press,
which records the time she feels movement on the strip
on which the FHR is recorded
...
-Non reactive NST indicates the
fetal heartbeat does not accelerate
adequately and further assessment
may be required
-A reactive NST indicates the fetal
heartbeat accelerated adequately
with fetal movement
Contractions are induced by intravenous oxytocin
(Pitocin) infusion or by self- stimulation of the nipples,
which cause the woman’s pituitary gland to release
oxytocin; the woman must have at least three
contractions of at least 40 sec duration in a 10 min
periods for interpretation of the CST test
...
To avoid hyper stimulation
(uterine contractions lasting 90 sec or more often than
every 2 min), bilateral stimulation should not be done
unless unilateral stimulation fails
...
The test is usually performed at 16-18 weeks’
gestation
Title: Diagnostics in Maternity
Description: Gives a simple form of remembering procedures during pregnancy and pictures included
Description: Gives a simple form of remembering procedures during pregnancy and pictures included