OB/NB SU Midterm Exam Questions and
Verified Answers with Rationale | Latest
Edition 2026/2027
Question 1
A 25 year old primigravida presents to the prenatal clinic for her
initial visit at 10 weeks of gestation. She reports a history of
regular menstrual cycles every 28 days, with her last normal
menstrual period beginning on January 10. Using Naegele's rule,
which of the following is the estimated date of confinement for
this client?
A. October 17
B. November 17
C. September 17
D. October 24
Correct Answer: A
Rationale: Naegele's rule calculates the estimated date of
confinement by taking the first day of the last normal menstrual
period, adding 7 days, subtracting 3 months, and adjusting the
year accordingly. Adding 7 days to January 10 gives January 17;
subtracting 3 months yields October 17.
Question 2
,A 30 year old pregnant client at 28 weeks of gestation is
scheduled for a routine prenatal visit. During the assessment, she
reports feeling dizzy and lightheaded when lying flat on her
back on the examination table. Which of the following
physiological changes explains this symptom?
A. Compression of the inferior vena cava and descending
aorta by the gravid uterus, reducing venous return
B. Acute maternal hypoglycemia resulting from increased
fetal glucose utilization across the placenta
C. Sudden vasodilation caused by elevated serum
progesterone levels relaxing vascular smooth muscle
D. Physiologic anemia of pregnancy diminishing the oxygen-
carrying capacity of maternal blood
Correct Answer: A
Rationale: Supine hypotensive syndrome occurs when the
heavy gravid uterus compresses the inferior vena cava and aorta
when the client lies flat, decreasing venous return to the heart
and causing maternal hypotension, dizziness, and pallor.
Question 3
A 28 year old G2P1 client at 16 weeks of gestation undergoes a
routine mid-trimester ultrasound evaluation. She asks the nurse
what specific developmental milestones the fetus has achieved at
this stage. Which of the following fetal characteristics is
typically present at 16 weeks?
, A. Active fetal movements, recognizable sex on ultrasound,
and transparent skin
B. Surfactant production in the alveoli and complete opening
of the eyelids
C. Subcutaneous fat deposition, lanugo shedding, and firm
fingernails
D. Formation of the neural tube and initial beating of the
embryonic heart
Correct Answer: A
Rationale: By 16 weeks of gestation, fetal movements
(quickening) are often perceptible to multiparous clients, gender
can typically be identified via ultrasound, and the skin is thin
and transparent.
Question 4
A 32 year old primigravida at 20 weeks of gestation reports
feeling fluttering sensations in her lower abdomen, which she
suspects are fetal movements. The nurse documents this finding
in the chart. Which of the following terms describes this
maternal sensation?
A. Quickening
B. Lightening
C. Ballottement
D. Goodell sign
, Correct Answer: A
Rationale: Quickening is the first maternal perception of fetal
movement, usually experienced between 16 and 18 weeks in
multiparous clients and around 18 to 20 weeks in primigravidas.
Question 5
A 27 year old pregnant client at 12 weeks of gestation is
reviewing presumptive, probable, and positive signs of
pregnancy with the nurse. Which of the following clinical
findings is classified as a positive sign of pregnancy?
A. Visualization of the fetal heart skeleton and heartbeat via
real-time ultrasound examination
B. Softening of the lower uterine segment known as Hegar
sign
C. Positive result on a home urine pregnancy test detecting
human chorionic gonadotropin
D. Amenorrhea and breast tenderness reported by the client
Correct Answer: A
Rationale: Positive signs of pregnancy are objective phenomena
that can be attributed only to the presence of a fetus, such as
ultrasound visualization, fetal heart tones auscultated by a
clinician, and fetal movement felt by an examiner.
Question 6
Verified Answers with Rationale | Latest
Edition 2026/2027
Question 1
A 25 year old primigravida presents to the prenatal clinic for her
initial visit at 10 weeks of gestation. She reports a history of
regular menstrual cycles every 28 days, with her last normal
menstrual period beginning on January 10. Using Naegele's rule,
which of the following is the estimated date of confinement for
this client?
A. October 17
B. November 17
C. September 17
D. October 24
Correct Answer: A
Rationale: Naegele's rule calculates the estimated date of
confinement by taking the first day of the last normal menstrual
period, adding 7 days, subtracting 3 months, and adjusting the
year accordingly. Adding 7 days to January 10 gives January 17;
subtracting 3 months yields October 17.
Question 2
,A 30 year old pregnant client at 28 weeks of gestation is
scheduled for a routine prenatal visit. During the assessment, she
reports feeling dizzy and lightheaded when lying flat on her
back on the examination table. Which of the following
physiological changes explains this symptom?
A. Compression of the inferior vena cava and descending
aorta by the gravid uterus, reducing venous return
B. Acute maternal hypoglycemia resulting from increased
fetal glucose utilization across the placenta
C. Sudden vasodilation caused by elevated serum
progesterone levels relaxing vascular smooth muscle
D. Physiologic anemia of pregnancy diminishing the oxygen-
carrying capacity of maternal blood
Correct Answer: A
Rationale: Supine hypotensive syndrome occurs when the
heavy gravid uterus compresses the inferior vena cava and aorta
when the client lies flat, decreasing venous return to the heart
and causing maternal hypotension, dizziness, and pallor.
Question 3
A 28 year old G2P1 client at 16 weeks of gestation undergoes a
routine mid-trimester ultrasound evaluation. She asks the nurse
what specific developmental milestones the fetus has achieved at
this stage. Which of the following fetal characteristics is
typically present at 16 weeks?
, A. Active fetal movements, recognizable sex on ultrasound,
and transparent skin
B. Surfactant production in the alveoli and complete opening
of the eyelids
C. Subcutaneous fat deposition, lanugo shedding, and firm
fingernails
D. Formation of the neural tube and initial beating of the
embryonic heart
Correct Answer: A
Rationale: By 16 weeks of gestation, fetal movements
(quickening) are often perceptible to multiparous clients, gender
can typically be identified via ultrasound, and the skin is thin
and transparent.
Question 4
A 32 year old primigravida at 20 weeks of gestation reports
feeling fluttering sensations in her lower abdomen, which she
suspects are fetal movements. The nurse documents this finding
in the chart. Which of the following terms describes this
maternal sensation?
A. Quickening
B. Lightening
C. Ballottement
D. Goodell sign
, Correct Answer: A
Rationale: Quickening is the first maternal perception of fetal
movement, usually experienced between 16 and 18 weeks in
multiparous clients and around 18 to 20 weeks in primigravidas.
Question 5
A 27 year old pregnant client at 12 weeks of gestation is
reviewing presumptive, probable, and positive signs of
pregnancy with the nurse. Which of the following clinical
findings is classified as a positive sign of pregnancy?
A. Visualization of the fetal heart skeleton and heartbeat via
real-time ultrasound examination
B. Softening of the lower uterine segment known as Hegar
sign
C. Positive result on a home urine pregnancy test detecting
human chorionic gonadotropin
D. Amenorrhea and breast tenderness reported by the client
Correct Answer: A
Rationale: Positive signs of pregnancy are objective phenomena
that can be attributed only to the presence of a fetus, such as
ultrasound visualization, fetal heart tones auscultated by a
clinician, and fetal movement felt by an examiner.
Question 6
