OB CH. 12 ASSESSMENT OF FETAL WELL BEING |
GUARANTEED SUCCESS STARTS HERE! LEARN, PRACTICE
& EXCEL!
Risks of Antenatal testing Answer: The degree of physical risk to mother and fetus depends
on the type of test and the procedure involved.
However, all tests carry a degree of psychological stress for the pregnant woman and her
family.
Excellent nursing care requires thorough and accurate teaching, respect for the families'
personal decisions, and acknowledgment and support of concerns and fears regarding the
potential diagnosis
Describe Ultrasound Answer: Used to confirm pregnancy & location (intrauterine vs.
ectopic)
Estimate gestational age of pregnancy/fetus
Detect abnormalities
Provide information about fetal growth and movement
Describe Doppler Flow Studies Answer: Measures the velocity of RBCs by the change in
frequency of the sound wave being reflected off the cells (Doppler Effect).
Useful to determine placental blood and resistance.
Doppler Flow Studies: Absent or reversed end diastolic blood flow and elevated S/D ratios
indicate Answer: placental vascular disease
Describe Alpha- Fetoprotein Analysis Answer: Glycoprotein produced by the fetus
Present in amniotic fluid between 10-14 weeks
Maternal serum (MSAFP) beginning at 12-14 weeks (crosses placental membrane)
Optimum time for maternal serum testing is 16-18 weeks
Describe what may cause false positive of Alpha- Fetoprotein Analysis (5) Answer:
inaccurate reporting of maternal weight
race
APPHIA – Crafted with Care and Precision for Academic Excellence. 1
, number of fetuses
insulin dependency
or if the specimen is not drawn within the appropriate time frame
Alpha- Fetoprotein Analysis: Elevated AFP may be due to (6) Answer: Underestimation of
gestational age
Open neural tube defect
Multifetal pregnancy
GI defects
Decreased maternal weight
oligohydramnios (deficiency of amniotic fluid)
Alpha- Fetoprotein Analysis: Low AFP may be due to (7) Answer: Overestimation of
gestation age
Fetal death
Gestational trophoblastic disease
Increased maternal weight
Type 1 diabetes
Trisomy 21 (Down syndrome)
Trisomy 18 (Edwards syndrome)
Multiple Marker Test Answer: Look up on slide
Describe PAPPA (Pregnancy Associated Plasma Protein A) Answer: Regulates insulin-like
growth factor essential for normal fetal development
PAPPA (Pregnancy Associated Plasma Protein A) Low levels at 11-13 weeks associate with
(5) Answer: Stillbirth
stillbirth
Infant death
Preterm
Preeclampsia
Chromosomal abnormalities
APPHIA – Crafted with Care and Precision for Academic Excellence. 2
GUARANTEED SUCCESS STARTS HERE! LEARN, PRACTICE
& EXCEL!
Risks of Antenatal testing Answer: The degree of physical risk to mother and fetus depends
on the type of test and the procedure involved.
However, all tests carry a degree of psychological stress for the pregnant woman and her
family.
Excellent nursing care requires thorough and accurate teaching, respect for the families'
personal decisions, and acknowledgment and support of concerns and fears regarding the
potential diagnosis
Describe Ultrasound Answer: Used to confirm pregnancy & location (intrauterine vs.
ectopic)
Estimate gestational age of pregnancy/fetus
Detect abnormalities
Provide information about fetal growth and movement
Describe Doppler Flow Studies Answer: Measures the velocity of RBCs by the change in
frequency of the sound wave being reflected off the cells (Doppler Effect).
Useful to determine placental blood and resistance.
Doppler Flow Studies: Absent or reversed end diastolic blood flow and elevated S/D ratios
indicate Answer: placental vascular disease
Describe Alpha- Fetoprotein Analysis Answer: Glycoprotein produced by the fetus
Present in amniotic fluid between 10-14 weeks
Maternal serum (MSAFP) beginning at 12-14 weeks (crosses placental membrane)
Optimum time for maternal serum testing is 16-18 weeks
Describe what may cause false positive of Alpha- Fetoprotein Analysis (5) Answer:
inaccurate reporting of maternal weight
race
APPHIA – Crafted with Care and Precision for Academic Excellence. 1
, number of fetuses
insulin dependency
or if the specimen is not drawn within the appropriate time frame
Alpha- Fetoprotein Analysis: Elevated AFP may be due to (6) Answer: Underestimation of
gestational age
Open neural tube defect
Multifetal pregnancy
GI defects
Decreased maternal weight
oligohydramnios (deficiency of amniotic fluid)
Alpha- Fetoprotein Analysis: Low AFP may be due to (7) Answer: Overestimation of
gestation age
Fetal death
Gestational trophoblastic disease
Increased maternal weight
Type 1 diabetes
Trisomy 21 (Down syndrome)
Trisomy 18 (Edwards syndrome)
Multiple Marker Test Answer: Look up on slide
Describe PAPPA (Pregnancy Associated Plasma Protein A) Answer: Regulates insulin-like
growth factor essential for normal fetal development
PAPPA (Pregnancy Associated Plasma Protein A) Low levels at 11-13 weeks associate with
(5) Answer: Stillbirth
stillbirth
Infant death
Preterm
Preeclampsia
Chromosomal abnormalities
APPHIA – Crafted with Care and Precision for Academic Excellence. 2
