NUR2513 EXAM 1 STUDY GUIDE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2025
1. What is the primary hormone responsible for maintaining the uterine lining
during pregnancy?
A) Estrogen
B) Progesterone
C) Oxytocin
D) Prolactin
B) Progesterone
Progesterone maintains the uterine lining and prevents contractions to
support pregnancy.
2. At what gestational age is a fetus considered viable outside the womb?
A) 20 weeks
B) 24 weeks
C) 28 weeks
D) 32 weeks
B) 24 weeks
Fetuses born at or after 24 weeks have a chance of survival with medical
support, considered the threshold of viability.
3. Which of the following is a presumptive sign of pregnancy?
A) Positive pregnancy test
, B) Fetal heartbeat detected by Doppler
C) Amenorrhea
D) Visualization of fetus on ultrasound
C) Amenorrhea
Amenorrhea (absence of menstruation) is a common early subjective sign
reported by the woman, hence presumptive.
4. What is the purpose of the placenta?
A) To produce breast milk
B) To exchange nutrients and waste between mother and fetus
C) To contract during labor
D) To store fetal waste
B) To exchange nutrients and waste between mother and fetus
The placenta facilitates nutrient and gas exchange, and waste removal for
the fetus.
5. When does the embryonic period occur?
A) Weeks 1–2
B) Weeks 3–8
C) Weeks 9–12
D) Weeks 13–16
B) Weeks 3–8
The embryonic period is critical for organogenesis, occurring during weeks
3 to 8 of gestation.
6. What is the normal range for fetal heart rate?
A) 80–120 bpm
, B) 110–160 bpm
C) 160–200 bpm
D) 100–140 bpm
B) 110–160 bpm
The normal fetal heart rate ranges from 110 to 160 beats per minute.
7. Which prenatal test screens for neural tube defects?
A) Amniocentesis
B) Alpha-fetoprotein (AFP) screening
C) Chorionic villus sampling (CVS)
D) Non-stress test
B) Alpha-fetoprotein (AFP) screening
AFP screening measures fetal protein levels; elevated levels may indicate
neural tube defects.
8. What does a positive Chadwick’s sign indicate?
A) Ovulation
B) Pregnancy
C) Menopause
D) Labor
B) Pregnancy
Chadwick’s sign is bluish discoloration of the cervix, indicating increased
vascularity from pregnancy.
9. How often should a low-risk pregnant woman have prenatal visits after 28
weeks?
A) Every week
, B) Every 2 weeks
C) Every 4 weeks
D) Every 6 weeks
B) Every 2 weeks
Prenatal visits are typically every 2 weeks from 28 to 36 weeks, then
weekly after 36 weeks.
10. What is the primary cause of morning sickness?
A) Increased hCG hormone
B) Increased insulin
C) Low progesterone
D) High cortisol levels
A) Increased hCG hormone
Elevated human chorionic gonadotropin (hCG) levels are associated with
nausea and vomiting in early pregnancy.
11. Which vitamin is crucial to prevent neural tube defects?
A) Vitamin D
B) Vitamin B12
C) Folic acid
D) Vitamin C
C) Folic acid
Folic acid supplementation before conception and early pregnancy
reduces neural tube defects.
12. What is the term for the first fetal movements felt by the mother?
A) Quickening
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2025
1. What is the primary hormone responsible for maintaining the uterine lining
during pregnancy?
A) Estrogen
B) Progesterone
C) Oxytocin
D) Prolactin
B) Progesterone
Progesterone maintains the uterine lining and prevents contractions to
support pregnancy.
2. At what gestational age is a fetus considered viable outside the womb?
A) 20 weeks
B) 24 weeks
C) 28 weeks
D) 32 weeks
B) 24 weeks
Fetuses born at or after 24 weeks have a chance of survival with medical
support, considered the threshold of viability.
3. Which of the following is a presumptive sign of pregnancy?
A) Positive pregnancy test
, B) Fetal heartbeat detected by Doppler
C) Amenorrhea
D) Visualization of fetus on ultrasound
C) Amenorrhea
Amenorrhea (absence of menstruation) is a common early subjective sign
reported by the woman, hence presumptive.
4. What is the purpose of the placenta?
A) To produce breast milk
B) To exchange nutrients and waste between mother and fetus
C) To contract during labor
D) To store fetal waste
B) To exchange nutrients and waste between mother and fetus
The placenta facilitates nutrient and gas exchange, and waste removal for
the fetus.
5. When does the embryonic period occur?
A) Weeks 1–2
B) Weeks 3–8
C) Weeks 9–12
D) Weeks 13–16
B) Weeks 3–8
The embryonic period is critical for organogenesis, occurring during weeks
3 to 8 of gestation.
6. What is the normal range for fetal heart rate?
A) 80–120 bpm
, B) 110–160 bpm
C) 160–200 bpm
D) 100–140 bpm
B) 110–160 bpm
The normal fetal heart rate ranges from 110 to 160 beats per minute.
7. Which prenatal test screens for neural tube defects?
A) Amniocentesis
B) Alpha-fetoprotein (AFP) screening
C) Chorionic villus sampling (CVS)
D) Non-stress test
B) Alpha-fetoprotein (AFP) screening
AFP screening measures fetal protein levels; elevated levels may indicate
neural tube defects.
8. What does a positive Chadwick’s sign indicate?
A) Ovulation
B) Pregnancy
C) Menopause
D) Labor
B) Pregnancy
Chadwick’s sign is bluish discoloration of the cervix, indicating increased
vascularity from pregnancy.
9. How often should a low-risk pregnant woman have prenatal visits after 28
weeks?
A) Every week
, B) Every 2 weeks
C) Every 4 weeks
D) Every 6 weeks
B) Every 2 weeks
Prenatal visits are typically every 2 weeks from 28 to 36 weeks, then
weekly after 36 weeks.
10. What is the primary cause of morning sickness?
A) Increased hCG hormone
B) Increased insulin
C) Low progesterone
D) High cortisol levels
A) Increased hCG hormone
Elevated human chorionic gonadotropin (hCG) levels are associated with
nausea and vomiting in early pregnancy.
11. Which vitamin is crucial to prevent neural tube defects?
A) Vitamin D
B) Vitamin B12
C) Folic acid
D) Vitamin C
C) Folic acid
Folic acid supplementation before conception and early pregnancy
reduces neural tube defects.
12. What is the term for the first fetal movements felt by the mother?
A) Quickening
