Page 1 of 40
NR 327 / NR327 Exam 1 | Maternal-Child
Nursing | Questions & Answers with Rationales |
Grade A | 120+ Verified Solutions | NGN-Style
Exam Structure:
Subject: Nursing / Maternal-Child Nursing, Obstetrics, Newborn Care
Source: NR327 EXAM 1
Format: Key Concept Questions with Correct Answers and Rationales
Umbilical Cord and Fetal Circulation
1. What vessels are in the umbilical cord?
Answer: 2 arteries, 1 vein (AVA)
Rationale:
1. The umbilical cord contains two arteries and one vein.
2. The arteries carry deoxygenated blood and waste products from the fetus
to the placenta.
3. The veins carry oxygenated blood and nutrients from the placenta to the
fetus.
2. The vessel carries oxygenated blood to the fetus. The artery or the veins.
Answer: The Vein
Rationale:
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1. The umbilical vein carries oxygen-rich blood from the placenta to the fetus.
2. This is a key distinction from adult circulation where veins carry deoxygenated
blood.
3. After birth, the umbilical vein becomes the ligamentum teres.
Pregnancy Testing and Hormones
3. What hormone is detected in a pregnancy test?
Answer: hCG (human chorionic gonadotropin)
Rationale:
1. hCG is produced by the developing placenta shortly after implantation.
2. It is the hormone detected in urine and blood pregnancy tests.
3. Levels rise rapidly in early pregnancy, peaking around 8–12 weeks.
Dating and Estimating Due Date
4. What is Naegele's rule?
Answer: 1st day of last menstrual cycle, minus 3 months, plus 7 days = estimated
date of delivery
Rationale:
1. Naegele’s rule is a standard method for estimating the due date.
2. It assumes a 28-day menstrual cycle and conception on day 14.
3. The calculation provides an estimated date of delivery (EDD).
,Page 3 of 40
Glucose Testing in Pregnancy
5. 1 hr glucose test is performed at what point during pregnancy?
Answer: 24–28 weeks
Rationale:
1. The 1-hour glucose challenge test screens for gestational diabetes.
2. It is typically performed between 24 and 28 weeks’ gestation when insulin
resistance peaks.
3. A value >140 mg/dL indicates the need for a 3-hour fasting glucose
tolerance test.
6. What is the next step if the 1 hr glucose test has a result >140?
Answer: 3-hour fasting glucose tolerance test
Rationale:
1. A positive screening test requires a diagnostic 3-hour oral glucose tolerance
test.
2. The patient must fast overnight before the test.
3. Two or more abnormal values confirm gestational diabetes.
7. When is hypoglycemia common?
Answer: 1st trimester
Rationale
1. Early pregnancy is associated with increased insulin sensitivity and lower
blood glucose.
2. Nausea and vomiting may contribute to hypoglycemia.
3. Women with pre-existing diabetes may need to adjust insulin doses.
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8. When is hyperglycemia a risk?
Answer: During 2nd/3rd trimester
Rationale:
1. Placental hormones (e.g., human placental lactogen) cause insulin
resistance.
2. This increases the risk of gestational diabetes.
3. Blood glucose levels typically rise in the second half of pregnancy.
9. TRUE or FALSE: Gestational diabetes resolves after delivery?
Answer: TRUE
Rationale:
1. Gestational diabetes usually resolves after delivery when placental
hormones are gone.
2. However, women have an increased risk of developing type 2 diabetes later
in life.
3. Postpartum glucose testing is recommended.
10. What is typically given as treatment for GDM – oral hypoglycemics or insulin
therapy?
Answer: Insulin therapy
Rationale:
1. Insulin is the preferred treatment for GDM because it does not cross the
placenta.
2. Oral hypoglycemics (e.g., glyburide, metformin) may be used but are not
first-line.
3. Tight glycemic control is essential to prevent fetal complications.
NR 327 / NR327 Exam 1 | Maternal-Child
Nursing | Questions & Answers with Rationales |
Grade A | 120+ Verified Solutions | NGN-Style
Exam Structure:
Subject: Nursing / Maternal-Child Nursing, Obstetrics, Newborn Care
Source: NR327 EXAM 1
Format: Key Concept Questions with Correct Answers and Rationales
Umbilical Cord and Fetal Circulation
1. What vessels are in the umbilical cord?
Answer: 2 arteries, 1 vein (AVA)
Rationale:
1. The umbilical cord contains two arteries and one vein.
2. The arteries carry deoxygenated blood and waste products from the fetus
to the placenta.
3. The veins carry oxygenated blood and nutrients from the placenta to the
fetus.
2. The vessel carries oxygenated blood to the fetus. The artery or the veins.
Answer: The Vein
Rationale:
,Page 2 of 40
1. The umbilical vein carries oxygen-rich blood from the placenta to the fetus.
2. This is a key distinction from adult circulation where veins carry deoxygenated
blood.
3. After birth, the umbilical vein becomes the ligamentum teres.
Pregnancy Testing and Hormones
3. What hormone is detected in a pregnancy test?
Answer: hCG (human chorionic gonadotropin)
Rationale:
1. hCG is produced by the developing placenta shortly after implantation.
2. It is the hormone detected in urine and blood pregnancy tests.
3. Levels rise rapidly in early pregnancy, peaking around 8–12 weeks.
Dating and Estimating Due Date
4. What is Naegele's rule?
Answer: 1st day of last menstrual cycle, minus 3 months, plus 7 days = estimated
date of delivery
Rationale:
1. Naegele’s rule is a standard method for estimating the due date.
2. It assumes a 28-day menstrual cycle and conception on day 14.
3. The calculation provides an estimated date of delivery (EDD).
,Page 3 of 40
Glucose Testing in Pregnancy
5. 1 hr glucose test is performed at what point during pregnancy?
Answer: 24–28 weeks
Rationale:
1. The 1-hour glucose challenge test screens for gestational diabetes.
2. It is typically performed between 24 and 28 weeks’ gestation when insulin
resistance peaks.
3. A value >140 mg/dL indicates the need for a 3-hour fasting glucose
tolerance test.
6. What is the next step if the 1 hr glucose test has a result >140?
Answer: 3-hour fasting glucose tolerance test
Rationale:
1. A positive screening test requires a diagnostic 3-hour oral glucose tolerance
test.
2. The patient must fast overnight before the test.
3. Two or more abnormal values confirm gestational diabetes.
7. When is hypoglycemia common?
Answer: 1st trimester
Rationale
1. Early pregnancy is associated with increased insulin sensitivity and lower
blood glucose.
2. Nausea and vomiting may contribute to hypoglycemia.
3. Women with pre-existing diabetes may need to adjust insulin doses.
, Page 4 of 40
8. When is hyperglycemia a risk?
Answer: During 2nd/3rd trimester
Rationale:
1. Placental hormones (e.g., human placental lactogen) cause insulin
resistance.
2. This increases the risk of gestational diabetes.
3. Blood glucose levels typically rise in the second half of pregnancy.
9. TRUE or FALSE: Gestational diabetes resolves after delivery?
Answer: TRUE
Rationale:
1. Gestational diabetes usually resolves after delivery when placental
hormones are gone.
2. However, women have an increased risk of developing type 2 diabetes later
in life.
3. Postpartum glucose testing is recommended.
10. What is typically given as treatment for GDM – oral hypoglycemics or insulin
therapy?
Answer: Insulin therapy
Rationale:
1. Insulin is the preferred treatment for GDM because it does not cross the
placenta.
2. Oral hypoglycemics (e.g., glyburide, metformin) may be used but are not
first-line.
3. Tight glycemic control is essential to prevent fetal complications.
