ATI PROCTORED OB MATERNAL FULL REVIEW
& PRACTICE QUESTIONS 2026
◉ biophysical profile (BPP) normal score is Answer: A biophysical
profile (BPP) test measures the health of your baby (fetus) during
pregnancy.
8-10
◉ BPP abnormal score is Answer: <4
◉ If a BPP comes back as 6..... Answer: It should be retested
◉ BPP assess for Answer: Fetal well being
◉ non-stress test ( NST) Answer: most widely used technique for
antepartum evaluation of fetal well being performed during the
third trimester.
◉ Reactive NST Answer: FHR is a normal baseline rate with
moderate variablity
Two accelerations to 15 bpm for at least 15 secs in 20 min period
,◉ A non reactive NST would indicate what about the fetus? Answer:
The fetal heart rate does not accelerate adequately with fetal
movement.
-A BPP or CST will need to be done now
◉ Positive CST is normal or abnormal Answer: abnormal
The contraction stress test — also called a stress test or an oxytocin
challenge test — may be done during pregnancy to measure the
baby's heart rate during uterine contractions. Its purpose is to make
sure the baby can get the oxygen he needs from the placenta during
labor.
◉ Positive CST is indicated when: Answer: Persistent and consistent
late decels on more than half of the contractions.
◉ An amniocentesis may be performed when? Answer: After 14
weeks gestation
◉ AFP can be measured from the amniotic fluid between: Answer:
16 and 18 weeks
alpha-fetoprotein
,◉ Presence of PG on a fetal lung test is associated with: Answer:
Respiratory distress
◉ CVS can be done at Answer: 10-12 weeks
Chorionic villus sampling (CVS) is a prenatal test that diagnoses
chromosomal abnormalities such as Down syndrome, as well as a
host of other genetic disorders. The doctor takes cells from tiny
fingerlike projections on your placenta called the chorionic villi and
sends them to a lab for genetic analysis.
◉ First stage of labor: Answer: 1-1.5 cm (onset of labor)
◉ Latent phase of labor: Answer: 0-3 cm
mild to moderate contractions
irregular
q 5-30 min
lasts 30-40 sec
◉ Active phase of labor: Answer: 4-7 cm
moderate to strong contractions
regular
q 3-5 min
, lasts 40-70 sec
◉ Transition phase of labor Answer: 8-10 cm
strong to very strong contractions
q 2-3 min
lasts 45-90 sec
◉ Second stage of labor: Answer: Full dilation
Intense contractions
BIRTH!!
◉ Third stage of labor: Answer: Delivery of placenta
◉ Fourth stage: Answer: Maternal stabilization of vital signs
◉ First stage pain: Answer: internal visceral
may be felt as back/leg pain
◉ Second stage pain: Answer: somatic
occurs with fetal descent and expulsion
◉ Third stage pain: Answer: similar to first stage pain
& PRACTICE QUESTIONS 2026
◉ biophysical profile (BPP) normal score is Answer: A biophysical
profile (BPP) test measures the health of your baby (fetus) during
pregnancy.
8-10
◉ BPP abnormal score is Answer: <4
◉ If a BPP comes back as 6..... Answer: It should be retested
◉ BPP assess for Answer: Fetal well being
◉ non-stress test ( NST) Answer: most widely used technique for
antepartum evaluation of fetal well being performed during the
third trimester.
◉ Reactive NST Answer: FHR is a normal baseline rate with
moderate variablity
Two accelerations to 15 bpm for at least 15 secs in 20 min period
,◉ A non reactive NST would indicate what about the fetus? Answer:
The fetal heart rate does not accelerate adequately with fetal
movement.
-A BPP or CST will need to be done now
◉ Positive CST is normal or abnormal Answer: abnormal
The contraction stress test — also called a stress test or an oxytocin
challenge test — may be done during pregnancy to measure the
baby's heart rate during uterine contractions. Its purpose is to make
sure the baby can get the oxygen he needs from the placenta during
labor.
◉ Positive CST is indicated when: Answer: Persistent and consistent
late decels on more than half of the contractions.
◉ An amniocentesis may be performed when? Answer: After 14
weeks gestation
◉ AFP can be measured from the amniotic fluid between: Answer:
16 and 18 weeks
alpha-fetoprotein
,◉ Presence of PG on a fetal lung test is associated with: Answer:
Respiratory distress
◉ CVS can be done at Answer: 10-12 weeks
Chorionic villus sampling (CVS) is a prenatal test that diagnoses
chromosomal abnormalities such as Down syndrome, as well as a
host of other genetic disorders. The doctor takes cells from tiny
fingerlike projections on your placenta called the chorionic villi and
sends them to a lab for genetic analysis.
◉ First stage of labor: Answer: 1-1.5 cm (onset of labor)
◉ Latent phase of labor: Answer: 0-3 cm
mild to moderate contractions
irregular
q 5-30 min
lasts 30-40 sec
◉ Active phase of labor: Answer: 4-7 cm
moderate to strong contractions
regular
q 3-5 min
, lasts 40-70 sec
◉ Transition phase of labor Answer: 8-10 cm
strong to very strong contractions
q 2-3 min
lasts 45-90 sec
◉ Second stage of labor: Answer: Full dilation
Intense contractions
BIRTH!!
◉ Third stage of labor: Answer: Delivery of placenta
◉ Fourth stage: Answer: Maternal stabilization of vital signs
◉ First stage pain: Answer: internal visceral
may be felt as back/leg pain
◉ Second stage pain: Answer: somatic
occurs with fetal descent and expulsion
◉ Third stage pain: Answer: similar to first stage pain
