Hormones
Increases significantly during pregnancy and promotes myometrial vasodilation
What is estrogen?
Used to evaluate plasma protein produced by the liver, yolk sace and GI sac
What is alpha-fetoprotein (AFP)?
Assesses baby's present well-being, provides evaluation of fetal HR in response to fetal movement and/or uterine activity
What is a NST (non stress test)?
A mature egg is released from an ovary
What is ovulation?
Causes vasoconstriction of uterine blood vessels resulting in decreased blood flow and supply of nutrients and oxygen to the fetus; often results in low birth weight and preterm labor
What is tobacco?
Regulates glucose availability to the fetus
What is hPL (human placental lactogen)?
Used for genetic makeup and blood type
What is chorionic villus sampling (CVS)?
Breathing, amniotic fluid volume, tone of fetus, movement of fetus and nonstress test
What is a biophysical profile (BPP)?
Usually occurs in the ampulla portion of the fallopian tube
What is fertilization?
A period when the embryo is extremely vulnerable to teratogens
What is organogenesis (weeks 2-8)?
Prevents maternal rejection of the fetus
What is progesterone?
Used to assess for inherited blood disorders
What is percutaneous umbilical blood sampling?
Assists in early diagnosis of trisomy 13, 18 & 21; genetic syndromes, diaphragmatic hernias, cardiac defects, fetal skeletal and neurological abnormalities
What is nuchal translucency screening?
I am called this once fertilization occurs
What is a zygote?
Dosage, duration, timing and maternal genetic susceptibility
What are factors that impact the extent of the teratogen effect?
Maintains corpus luteum during early pregnancy
What is hCG (human chorionic gonadotropin)?
Used to determine chromosome analysis
What is amniocentesis?
Evaluated according to the prescence or abscence of later FHR decelerations
What is contraction stress test (CST)?
Marks the beginning of pregnancy
What is implantation?
Produces maternal lethargy, drowsiness, and CNS depression
What are sedatives, barbiturates or tranquilizers?
Promotes fetal growth
What is hPL (human placental lactogen)?
Used to evaluate structural changes associated with genetic conditions
What is ultrasound?
Can be used to study blood flow through the fetal vessels such as the aorta and brain
What is doppler flow study?
When fetoplacental circulation is established
What is around week 3?
Caused by a parasite, acquired by eating raw or poorly cooked meat
What is toxoplasmosis?