NST vs CST
Which test is the most widely used technique for antepartum evaluation of fetal wellbeing performed during the 3rd trimester ?
What is Non-Stress Test (NST)
List the 5 components that's assessed
Fetal movement, breathing, AFI, fetal flexion, and NST
where should the ultrasound be placed ?
on the fetal back, where the heart rate is best felt
why should you empty the bladder
to reduce size and chances of accidental puncture
the best time to screen is between __ -__ weeks gestation, outside of this range, can result in false positive results
16-18
Results of NST
Reactive = ?
Nonreactive = ?
Reactive = good
Nonreactive = bad
Normal kick counts ?
count 2 or 3 times daily x 2hrs or 10 movements felt
count all movements in a 12 hr period
normal amount of amniotic fluid
500mL
what do you administer to client if Rh-negative
Rhogam
High levels of MSAFP indicates what
Low levels can indicate
high=neural tube defect
low=down syndrome
what position do the patient need to be in when performing a NST and how long does the test normally take (give a range) ?
Semi-fowlers/side-lying position
20-40 minutes
what do it mean when there's a decreased in fetal movement for 30 minutes
maybe sleep cycle
what is oligohydramnios
too little fluid
associated with chromosomal disorders or molar pregnancy
high or low levels ?
low levels
blood test that ascertains information about the likelihood of fetal birth defects (it doesn't diagnose the actual defect)
quad marker screening
Is this normal or abnormal?
3 uterine contractions lasting at 40-60 seconds within a 10-minute period and late deceleration of the FHR
Normal (Negative CST)
Fetal Movement : three movements in 30 minutes
is this a normal or abnormal score ?
Normal
what is the AFI ?
a method of reporting the volume of amniotic fluid
what is amniocentesis ?
a prenatal diagnostic procedure that removes a small sample of amniotic fluid from the sac surrounding a fetus to test for genetic disorders, chromosomal abnormalities, or infections
which one yields more reliable findings?
Quad or MSAFP
Quad Screen
List the indications for NST (at least 3 to get the points)
decreased fetal movement, IUGR, post-maturity, GDM, GHTN, history of fetal demise, AMA, Sickle cell disease
fetal tone: no movements or extension/flexion
abnormal or normal ?
abnormal score
factors that can cause maturity
smoking, post term, pre-e, gestational DM.
what should you do so the diaphragm doesn't lower against the uterus and shift the intrauterine contents
breath normally
what does MSAFP stand for
maternal serum alpha-fetoprotein