12/5/25, 1:52 PM OB - Exam 3 (updated 2025) Questions & Answers | Latest Already Graded A+ UPDATE Actual Exam for 2025-2026 OB - EXAM 3 …
OB - Exam 3 (updated 2025) Questions & Answers
| Latest Already Graded A+ UPDATE Actual Exam
for 2025-2026 OB - EXAM 3 Study Guide
Save
Terms in this set (246)
1. Preterm or premature: born before completion of
37 weeks of gestation, regardless of birth weight
2. Late preterm: 34-36 6/7 weeks
3. Early term: 37-38 6/7 weeks
Gestational age 4. Full term: 39-40 6/7 weeks
classification 5. Late term: 41-41 6/7 weeks
6. Postterm: 42 weeks & beyond
7. Postmature: born after completion of week 42 of
gestation & showing the effects of progressive
placental insufficiency
1. low birth weight if they are born weighing less than
2500 grams (about 5.5 pounds)
An infant's weight is 2. very low birth weight if they weigh less than 1500
classified as: grams (about 3.3 pounds).
3. extremely low birth weight (ELBW) if they weigh
less than 1000 grams (2.2 pounds).
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Low birth weight does not Intrauterine growth restriction (IUGR) & occurs when
necessarily mean a there has been complications of pregnancy that
preterm birth has interferes with uteroplacental perfusion
occurred. An infant can be
born with a low birth
weight at term. This is
called:
1. Regular contractions along with a change in cervical
effacement, dilation, or both
OR
Preterm labor is generally
diagnosed clinically as:
2. Presentation with regular uterine contractions and
cervical dilation of at least 2cm (because of their small
size, preterm fetuses can be delivered through a
partially dilated cervix)
Preterm birth is any birth 20-36 6/7 weeks of gestation
that occurs between:
1. 25% of preterm births are classified as "iatrogenic"
-fetus was intentionally delivered prematurely due
to maternal or fetal health reasons
2. 25% of preterm births are a result of PPROM
Causes of preterm birth
3. 50% are "idiopathic" which means it occurs
spontaneously and may be preventable
4. At least 50% of all women who deliver prematurely
have no identifiable cause or risk factor
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intentionally delivered due to maternal or fetal
health reasons:
1. Preeclampsia/Eclampsia
2. OB disorders or risk factors in the current or a
previous pregnancy
3. Previous C/S via a classic uterine incision
4. Placental disorders
5. Medical disorders
Common causes of 6. Seizures
iatrogenic/indicated 7. Thromboembolism
preterm birth 8. Maternal HIV or active herpes infection
9. Obesity
10. Advanced maternal age
11. Fetal disorders
12. Chronic (IUGR) or acute (abnormal NST or BPP)
fetal compromise
13. Excessive or inadequate amount of amniotic fluid
(oligo/polyhydramnios)
14. Congenital fetal abnormalities
Uterine contractions, cervical changes, & rupture of
membranes
-preventable
Spontaneous preterm
labor is caused by 1. Placental implantation bleeding (1st or 2nd
multiple pathologic trimester)
processes that eventually 3. Maternal & fetal stress (#1 major cause of preterm
result in: labor)
4. Uterine overdistention
5. Allergic reaction
6. Decrease in progesterone level
____________ is the only factor Infection
KNOWN to be associated -cervical, bacterial, or urinary tract infection
with preterm labor
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Identifying who is at-risk.
The first step in preventing
preterm labor & birth is: This is done by obtaining a complete history and
physical starting at the first prenatal visit.
1. Previous history of preterm labor and birth
2. Nonwhite race - black & hispanics have a higher
incidence of preterm birth
3. Genital tract colonization & infection
4. Multifetal gestation
Risk factors for 5. Second-trimester bleeding
spontaneous preterm 6. Low prepregnancy weight
labor 7. Poverty, lack of education, living in a disadvantaged
neighborhood, state, or region, & lack of access to
prenatal care are also risk factors
8. Risk also appears to be genetically related - women
whose sisters gave birth prematurely are also more
likely to do so
1. fFN
2 predictive diagnostic 2. endocervical length
measures for preterm
labor more powerful when used together in predicting
spontaneous preterm birth
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OB - Exam 3 (updated 2025) Questions & Answers
| Latest Already Graded A+ UPDATE Actual Exam
for 2025-2026 OB - EXAM 3 Study Guide
Save
Terms in this set (246)
1. Preterm or premature: born before completion of
37 weeks of gestation, regardless of birth weight
2. Late preterm: 34-36 6/7 weeks
3. Early term: 37-38 6/7 weeks
Gestational age 4. Full term: 39-40 6/7 weeks
classification 5. Late term: 41-41 6/7 weeks
6. Postterm: 42 weeks & beyond
7. Postmature: born after completion of week 42 of
gestation & showing the effects of progressive
placental insufficiency
1. low birth weight if they are born weighing less than
2500 grams (about 5.5 pounds)
An infant's weight is 2. very low birth weight if they weigh less than 1500
classified as: grams (about 3.3 pounds).
3. extremely low birth weight (ELBW) if they weigh
less than 1000 grams (2.2 pounds).
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,12/5/25, 1:52 PM OB - Exam 3 (updated 2025) Questions & Answers | Latest Already Graded A+ UPDATE Actual Exam for 2025-2026 OB - EXAM 3 …
Low birth weight does not Intrauterine growth restriction (IUGR) & occurs when
necessarily mean a there has been complications of pregnancy that
preterm birth has interferes with uteroplacental perfusion
occurred. An infant can be
born with a low birth
weight at term. This is
called:
1. Regular contractions along with a change in cervical
effacement, dilation, or both
OR
Preterm labor is generally
diagnosed clinically as:
2. Presentation with regular uterine contractions and
cervical dilation of at least 2cm (because of their small
size, preterm fetuses can be delivered through a
partially dilated cervix)
Preterm birth is any birth 20-36 6/7 weeks of gestation
that occurs between:
1. 25% of preterm births are classified as "iatrogenic"
-fetus was intentionally delivered prematurely due
to maternal or fetal health reasons
2. 25% of preterm births are a result of PPROM
Causes of preterm birth
3. 50% are "idiopathic" which means it occurs
spontaneously and may be preventable
4. At least 50% of all women who deliver prematurely
have no identifiable cause or risk factor
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intentionally delivered due to maternal or fetal
health reasons:
1. Preeclampsia/Eclampsia
2. OB disorders or risk factors in the current or a
previous pregnancy
3. Previous C/S via a classic uterine incision
4. Placental disorders
5. Medical disorders
Common causes of 6. Seizures
iatrogenic/indicated 7. Thromboembolism
preterm birth 8. Maternal HIV or active herpes infection
9. Obesity
10. Advanced maternal age
11. Fetal disorders
12. Chronic (IUGR) or acute (abnormal NST or BPP)
fetal compromise
13. Excessive or inadequate amount of amniotic fluid
(oligo/polyhydramnios)
14. Congenital fetal abnormalities
Uterine contractions, cervical changes, & rupture of
membranes
-preventable
Spontaneous preterm
labor is caused by 1. Placental implantation bleeding (1st or 2nd
multiple pathologic trimester)
processes that eventually 3. Maternal & fetal stress (#1 major cause of preterm
result in: labor)
4. Uterine overdistention
5. Allergic reaction
6. Decrease in progesterone level
____________ is the only factor Infection
KNOWN to be associated -cervical, bacterial, or urinary tract infection
with preterm labor
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, 12/5/25, 1:52 PM OB - Exam 3 (updated 2025) Questions & Answers | Latest Already Graded A+ UPDATE Actual Exam for 2025-2026 OB - EXAM 3 …
Identifying who is at-risk.
The first step in preventing
preterm labor & birth is: This is done by obtaining a complete history and
physical starting at the first prenatal visit.
1. Previous history of preterm labor and birth
2. Nonwhite race - black & hispanics have a higher
incidence of preterm birth
3. Genital tract colonization & infection
4. Multifetal gestation
Risk factors for 5. Second-trimester bleeding
spontaneous preterm 6. Low prepregnancy weight
labor 7. Poverty, lack of education, living in a disadvantaged
neighborhood, state, or region, & lack of access to
prenatal care are also risk factors
8. Risk also appears to be genetically related - women
whose sisters gave birth prematurely are also more
likely to do so
1. fFN
2 predictive diagnostic 2. endocervical length
measures for preterm
labor more powerful when used together in predicting
spontaneous preterm birth
https://quizlet.com/1117661975/ob-exam-3-updated-2025-questions-answers-latest-already-graded-a-update-actual-exam-for-2025-2026-ob-exam-… 4/107
