NURS 320 - ATI Exam Questions with
Verified Answers
Contraction stress test (CST): - ANSWER-Nipple stimulated CST:
- Woman brushing her palm across her nipple for 2 minutes (increases endogenous
oxytocin secretion)
*One nipple
- Stopping the nipple stimulation when a contraction begins
- The same process is repeated after a 5-minute rest period
*At least 3 contractions in a 10-minute period
*Duration of 40-60 seconds each
*Hyperstimulation of the uterus (uterine contractions longer than 90 seconds or more
frequent than every 2 minutes) should be avoided by stimulating the nipple
intermittently with rest periods in between and avoiding bimanual stimulation of both
nipples unless stimulation of one nipple is unsuccessful
Oxytocin (Pitocin) administration CST:
- Utilized if nipple stimulated CST fails
- IV administration of oxytocin to induce uterine contractions
*May lead to preterm labor
Contraction stress test (CST):
- Results - ANSWER-Negative CST: Normal finding; if within a 10-minute period,
with 3 uterine contractions and the absence of late decelerations of the FHR
Positive CST: Abnormal finding; persistent and consistent late decelerations on more
than half of the contractions
*Uteroplacental insufficiency
What are the following indicative of:
- Late decelerations
- Variable decelerations
- Early decelerations - ANSWER-Late decelerations: Uteroplacental insufficiency
Variable decelerations: Cord compression
Early decelerations: Fetal head compression
Amniocentesis: - ANSWER-- May be performed after 14 weeks of gestation
, - Aspiration of amniotic fluid for analysis by insertion of a needle transabdominally
into a client's uterus and amniotic sac under direct ultrasound guidance locating the
placenta and determining the position of the fetus
Alpha-fetoprotein (AFP): - ANSWER-- Between 16-18 weeks of gestation
- May be used to assess for neural tube defects in the fetus or chromosomal
disorders
What is high levels of alpha-fetoprotein (AFP) correlated with? - ANSWER-Neural
tube defects:
- Anencephaly (incomplete development of fetal skull and brain)
- Spina bifida (open spine)
- Omphalocele (abdominal wall defect
*High alpha-fetoprotein (AFP) levels may also be present with normal multifetal
pregnancies
What is low levels of alpha-fetoprotein (AFP) correlated with? - ANSWER-
Chromosomal disorders:
- Trisomy 21 (Down syndrome)
- Gestational trophoblastic disease
Fetal lung maturity:
- Indications - ANSWER-- Gestation less than 37 weeks
- ROM
- Preterm labor
- Complication indicating a cesarean birth
Fetal lung tests: - ANSWER-- Amniotic fluid is tested to determine whether the fetal
lungs are mature enough to adapt to extrauterine life, or if the fetus will likely have
respiratory distress
- Determination is made whether the fetus should be removed immediately or if the
fetus requires more time in utero with the administration of glucocorticoids to
promote fetal lung maturity
- Lecithin/sphingomyelin (L/S) ratio:
*2:1 indicates fetal lung maturity
*3:1 for clients with gestational diabetes mellitus
- Phosphatidylglycerol (PG): Absence of PG is associated with respiratory distress
Chorionic villus sampling (CVS): - ANSWER-- First trimester
Verified Answers
Contraction stress test (CST): - ANSWER-Nipple stimulated CST:
- Woman brushing her palm across her nipple for 2 minutes (increases endogenous
oxytocin secretion)
*One nipple
- Stopping the nipple stimulation when a contraction begins
- The same process is repeated after a 5-minute rest period
*At least 3 contractions in a 10-minute period
*Duration of 40-60 seconds each
*Hyperstimulation of the uterus (uterine contractions longer than 90 seconds or more
frequent than every 2 minutes) should be avoided by stimulating the nipple
intermittently with rest periods in between and avoiding bimanual stimulation of both
nipples unless stimulation of one nipple is unsuccessful
Oxytocin (Pitocin) administration CST:
- Utilized if nipple stimulated CST fails
- IV administration of oxytocin to induce uterine contractions
*May lead to preterm labor
Contraction stress test (CST):
- Results - ANSWER-Negative CST: Normal finding; if within a 10-minute period,
with 3 uterine contractions and the absence of late decelerations of the FHR
Positive CST: Abnormal finding; persistent and consistent late decelerations on more
than half of the contractions
*Uteroplacental insufficiency
What are the following indicative of:
- Late decelerations
- Variable decelerations
- Early decelerations - ANSWER-Late decelerations: Uteroplacental insufficiency
Variable decelerations: Cord compression
Early decelerations: Fetal head compression
Amniocentesis: - ANSWER-- May be performed after 14 weeks of gestation
, - Aspiration of amniotic fluid for analysis by insertion of a needle transabdominally
into a client's uterus and amniotic sac under direct ultrasound guidance locating the
placenta and determining the position of the fetus
Alpha-fetoprotein (AFP): - ANSWER-- Between 16-18 weeks of gestation
- May be used to assess for neural tube defects in the fetus or chromosomal
disorders
What is high levels of alpha-fetoprotein (AFP) correlated with? - ANSWER-Neural
tube defects:
- Anencephaly (incomplete development of fetal skull and brain)
- Spina bifida (open spine)
- Omphalocele (abdominal wall defect
*High alpha-fetoprotein (AFP) levels may also be present with normal multifetal
pregnancies
What is low levels of alpha-fetoprotein (AFP) correlated with? - ANSWER-
Chromosomal disorders:
- Trisomy 21 (Down syndrome)
- Gestational trophoblastic disease
Fetal lung maturity:
- Indications - ANSWER-- Gestation less than 37 weeks
- ROM
- Preterm labor
- Complication indicating a cesarean birth
Fetal lung tests: - ANSWER-- Amniotic fluid is tested to determine whether the fetal
lungs are mature enough to adapt to extrauterine life, or if the fetus will likely have
respiratory distress
- Determination is made whether the fetus should be removed immediately or if the
fetus requires more time in utero with the administration of glucocorticoids to
promote fetal lung maturity
- Lecithin/sphingomyelin (L/S) ratio:
*2:1 indicates fetal lung maturity
*3:1 for clients with gestational diabetes mellitus
- Phosphatidylglycerol (PG): Absence of PG is associated with respiratory distress
Chorionic villus sampling (CVS): - ANSWER-- First trimester
