NSG 432-Exam 1; Infertility,
Contraception, Genetics, Conception,
and Fetal Development FULLY
SOLVED
Preconception Genetic Testing - ANS ✔✔an important tool for couples whose genetic makeup
might have negative consequences on their children's health
*recommended for couples with family history, certain ethnicity, or infertility
what is preconception genetic testing - ANS ✔✔-also known as carrier screening, it aims to
determine if partners carry certain genes that if passed to children could cause disease
types of preconception genetic testing - ANS ✔✔-Targeted carrier screening: for those with
family hx or some ethic groups
-expanded carrier screening: for everyone; tests only for selected disorders
price of preconception genetic testing - ANS ✔✔$100-$2000
-depends on number, type of test, and insurance coverage
genetics vs genomics - ANS ✔✔genetics- study of individual genes and their role in heritance
genomics- study of all genes and includes interactions among genes as well as interactions
between genes and the environment
Monosomy and Trisomy - ANS ✔✔Monosomy:
-Missing a chromosome (usually 45)
, Trisomy:
-Extra chromosome (usually 47)
conception - ANS ✔✔the union a single egg with a single sperm
fertilization - ANS ✔✔occurs in the outer third of the fallopian tube
-after the sperm penetrates the egg membrane the egg becomes impermeable to all other
sperm
implantation - ANS ✔✔occurs in the uterus about 6-10 days after fertilization
-some women experience implantation bleeding
function of placenta - ANS ✔✔-secrete ECG, progesterone, and estrogen
-respiration, nutrition, excretion, and storage
-perfusion
fetal circulation - ANS ✔✔-1st system to function
-by 8 weeks heart is fully developed
-fetal lungs do not function for gas exchange
-fetal circulation follows a different path than non-fetal circulation
structures present in fetal circulation - ANS ✔✔-ductus arteriosus: bypass fetal lungs
-foramen ovale: shunts blood from left to right atrium
-ductus venosus: blood flows through umbilical vein through liver then passes through DV to
vena cava
Contraception, Genetics, Conception,
and Fetal Development FULLY
SOLVED
Preconception Genetic Testing - ANS ✔✔an important tool for couples whose genetic makeup
might have negative consequences on their children's health
*recommended for couples with family history, certain ethnicity, or infertility
what is preconception genetic testing - ANS ✔✔-also known as carrier screening, it aims to
determine if partners carry certain genes that if passed to children could cause disease
types of preconception genetic testing - ANS ✔✔-Targeted carrier screening: for those with
family hx or some ethic groups
-expanded carrier screening: for everyone; tests only for selected disorders
price of preconception genetic testing - ANS ✔✔$100-$2000
-depends on number, type of test, and insurance coverage
genetics vs genomics - ANS ✔✔genetics- study of individual genes and their role in heritance
genomics- study of all genes and includes interactions among genes as well as interactions
between genes and the environment
Monosomy and Trisomy - ANS ✔✔Monosomy:
-Missing a chromosome (usually 45)
, Trisomy:
-Extra chromosome (usually 47)
conception - ANS ✔✔the union a single egg with a single sperm
fertilization - ANS ✔✔occurs in the outer third of the fallopian tube
-after the sperm penetrates the egg membrane the egg becomes impermeable to all other
sperm
implantation - ANS ✔✔occurs in the uterus about 6-10 days after fertilization
-some women experience implantation bleeding
function of placenta - ANS ✔✔-secrete ECG, progesterone, and estrogen
-respiration, nutrition, excretion, and storage
-perfusion
fetal circulation - ANS ✔✔-1st system to function
-by 8 weeks heart is fully developed
-fetal lungs do not function for gas exchange
-fetal circulation follows a different path than non-fetal circulation
structures present in fetal circulation - ANS ✔✔-ductus arteriosus: bypass fetal lungs
-foramen ovale: shunts blood from left to right atrium
-ductus venosus: blood flows through umbilical vein through liver then passes through DV to
vena cava
