Page 1 of 142
NU 170 Exam 3 WITH VERIFIED ANSWERS DETAILED
RATIONALES GRADED A+
SECTION 1: ANTEPARTUM CARE & PRENATAL ASSESSMENT
(Questions 1–25)
Question 1.
A nurse is calculating the estimated date of delivery for a client whose last
menstrual period began on June 10. Using Naegele's rule, which date should the
nurse document?
A) March 10
B) March 17
C) March 3
D) March 24
Correct Answer: B
Rationale: Naegele's rule subtracts 3 months and adds 7 days to the first day of the last
menstrual period. June 10 minus 3 months is March 10, plus 7 days equals March 17.
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Question 2.
A nurse is reviewing a client's obstetric history documented as GTPAL: G3 T1 P0 A1
L2. Which interpretation of this documentation is most accurate?
A) The client has had 3 pregnancies, 1 term birth, 0 preterm births, 1 abortion, and 2
living children.
B) The client has had 3 deliveries, 1 twin birth, 0 preterm births, 1 abortion, and 2 living
children.
C) The client has had 2 pregnancies, 1 term birth, 0 preterm births, 1 abortion, and 2
living children.
D) The client has had 3 pregnancies, 1 preterm birth, 0 term births, 1 abortion, and 2
living children.
Correct Answer: A
Rationale: GTPAL stands for Gravida (total pregnancies), Term births, Preterm births,
Abortions (spontaneous or induced before 20 weeks), and Living children. G3 T1 P0 A1
L2 indicates 3 pregnancies, 1 term birth, 0 preterm births, 1 abortion, and 2 living
children.
Question 3.
A nurse is performing an initial prenatal assessment on a client at 10 weeks
gestation. Which laboratory test should the nurse prioritize to determine the
client's blood type and Rh status?
A) Complete blood count
B) Blood type and Rh factor
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C) Urinalysis
D) Rubella titer
Correct Answer: B
Rationale: Blood type and Rh factor are essential initial prenatal laboratory tests
because Rh incompatibility between mother and fetus can lead to hemolytic disease of
the newborn. Rh-negative mothers receive RhoGAM at 28 weeks and within 72 hours
after birth.
Question 4.
A nurse is teaching a pregnant client about the purpose of a glucose tolerance test
scheduled at 24 to 28 weeks gestation. Which explanation by the nurse is most
accurate?
A) "This test determines if you have iron-deficiency anemia."
B) "This test screens for gestational diabetes by measuring how your body processes
sugar."
C) "This test checks your baby's lung maturity."
D) "This test evaluates your kidney function."
Correct Answer: B
Rationale: The glucose tolerance test screens for gestational diabetes, which typically
develops between 24 and 28 weeks of gestation. Gestational diabetes increases the risk
of macrosomia, birth trauma, and neonatal hypoglycemia.
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Question 5.
A nurse is assessing a pregnant client at 32 weeks gestation and measures the
fundal height. Which measurement should the nurse expect to find?
A) 22 cm
B) 28 cm
C) 32 cm
D) 40 cm
Correct Answer: C
Rationale: Between 20 and 36 weeks of gestation, fundal height in centimeters
approximately equals the gestational age in weeks. At 32 weeks, the fundal height
should measure approximately 32 cm.
Question 6.
A pregnant client at 36 weeks gestation reports a sudden gush of clear fluid from
the vagina. Which nursing action is the priority?
A) Encourage the client to drink fluids and rest
B) Assess the fetal heart rate and check for cord prolapse
C) Prepare the client for an immediate cesarean delivery
D) Ask the client to perform a Valsalva maneuver
Correct Answer: B
Rationale: Spontaneous rupture of membranes (SROM) at 36 weeks requires immediate
assessment of the fetal heart rate and evaluation for umbilical cord prolapse. Cord
prolapse is an obstetric emergency that can compromise fetal oxygenation.
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NU 170 Exam 3 WITH VERIFIED ANSWERS DETAILED
RATIONALES GRADED A+
SECTION 1: ANTEPARTUM CARE & PRENATAL ASSESSMENT
(Questions 1–25)
Question 1.
A nurse is calculating the estimated date of delivery for a client whose last
menstrual period began on June 10. Using Naegele's rule, which date should the
nurse document?
A) March 10
B) March 17
C) March 3
D) March 24
Correct Answer: B
Rationale: Naegele's rule subtracts 3 months and adds 7 days to the first day of the last
menstrual period. June 10 minus 3 months is March 10, plus 7 days equals March 17.
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,Page 2 of 142
Question 2.
A nurse is reviewing a client's obstetric history documented as GTPAL: G3 T1 P0 A1
L2. Which interpretation of this documentation is most accurate?
A) The client has had 3 pregnancies, 1 term birth, 0 preterm births, 1 abortion, and 2
living children.
B) The client has had 3 deliveries, 1 twin birth, 0 preterm births, 1 abortion, and 2 living
children.
C) The client has had 2 pregnancies, 1 term birth, 0 preterm births, 1 abortion, and 2
living children.
D) The client has had 3 pregnancies, 1 preterm birth, 0 term births, 1 abortion, and 2
living children.
Correct Answer: A
Rationale: GTPAL stands for Gravida (total pregnancies), Term births, Preterm births,
Abortions (spontaneous or induced before 20 weeks), and Living children. G3 T1 P0 A1
L2 indicates 3 pregnancies, 1 term birth, 0 preterm births, 1 abortion, and 2 living
children.
Question 3.
A nurse is performing an initial prenatal assessment on a client at 10 weeks
gestation. Which laboratory test should the nurse prioritize to determine the
client's blood type and Rh status?
A) Complete blood count
B) Blood type and Rh factor
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C) Urinalysis
D) Rubella titer
Correct Answer: B
Rationale: Blood type and Rh factor are essential initial prenatal laboratory tests
because Rh incompatibility between mother and fetus can lead to hemolytic disease of
the newborn. Rh-negative mothers receive RhoGAM at 28 weeks and within 72 hours
after birth.
Question 4.
A nurse is teaching a pregnant client about the purpose of a glucose tolerance test
scheduled at 24 to 28 weeks gestation. Which explanation by the nurse is most
accurate?
A) "This test determines if you have iron-deficiency anemia."
B) "This test screens for gestational diabetes by measuring how your body processes
sugar."
C) "This test checks your baby's lung maturity."
D) "This test evaluates your kidney function."
Correct Answer: B
Rationale: The glucose tolerance test screens for gestational diabetes, which typically
develops between 24 and 28 weeks of gestation. Gestational diabetes increases the risk
of macrosomia, birth trauma, and neonatal hypoglycemia.
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Question 5.
A nurse is assessing a pregnant client at 32 weeks gestation and measures the
fundal height. Which measurement should the nurse expect to find?
A) 22 cm
B) 28 cm
C) 32 cm
D) 40 cm
Correct Answer: C
Rationale: Between 20 and 36 weeks of gestation, fundal height in centimeters
approximately equals the gestational age in weeks. At 32 weeks, the fundal height
should measure approximately 32 cm.
Question 6.
A pregnant client at 36 weeks gestation reports a sudden gush of clear fluid from
the vagina. Which nursing action is the priority?
A) Encourage the client to drink fluids and rest
B) Assess the fetal heart rate and check for cord prolapse
C) Prepare the client for an immediate cesarean delivery
D) Ask the client to perform a Valsalva maneuver
Correct Answer: B
Rationale: Spontaneous rupture of membranes (SROM) at 36 weeks requires immediate
assessment of the fetal heart rate and evaluation for umbilical cord prolapse. Cord
prolapse is an obstetric emergency that can compromise fetal oxygenation.
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