OB Nursing Exam 2025 Questions Answer Key|
100 Questions Complete with Verified Answers
and Explanations for Guaranteed Pass
1. Mr. and Mrs. Cremasteric arrive at the clinic for their first prenatal visit. Mr. Crema
tells the nurse that the women in his family usually have girl babies first and wonders why
some women always have girls. The nurse's correct response is:
a. “The sex of the baby is determined by the sperm.”
b. “Some women are just more fertile with females.”
c. “Nature determines whether the baby will be a girl or a boy.”
d. “The sex of the baby is determined by the egg.”
Correct Answer: a. “The sex of the baby is determined by the sperm.”
Explanation: The sex of a baby is determined by the sperm, which carries either an X or Y
chromosome. The egg always contributes an X chromosome, while the sperm contributes either
an X (resulting in a female, XX) or a Y (resulting in a male, XY).
2. The hormone responsible for the development of the ovum during the menstrual cycle
is?
a. Estrogen
b. Progesterone
c. Follicle Stimulating Hormone (FSH)
d. Luteinizing Hormone (LH)
Correct Answer: c. Follicle Stimulating Hormone (FSH)
Explanation: FSH, produced by the pituitary gland, stimulates the growth and maturation of
ovarian follicles, which contain the developing ovum, during the follicular phase of the
menstrual cycle.
3. Which hormone is not responsible for differentiation of male reproductive organs during
fetal life?
a. Mullerian Duct Inhibitor (MDI)
b. Dihydrotestosterone
c. Dehydroepiandrosterone sulfate
d. Testosterone
,Correct Answer: c. Dehydroepiandrosterone sulfate
Explanation: Mullerian Duct Inhibitor (MDI), dihydrotestosterone, and testosterone are critical
for male reproductive organ differentiation. Dehydroepiandrosterone sulfate, primarily an
adrenal hormone, is not directly involved in this process.
4. Which principal factor causes vaginal pH to be acidic?
a. Cervical mucus changes
b. Secretion of the Skene’s gland
c. The action of the Doderlein bacillus
d. Secretion of the Bartholin’s gland
Correct Answer: c. The action of the Doderlein bacillus
Explanation: Doderlein bacillus (Lactobacillus) produces lactic acid in the vagina, maintaining
an acidic pH (around 3.5–4.5), which helps prevent infections.
5. Family-centered nursing care for women and newborns focuses on which of the
following?
a. Assisting individuals and families achieve their optimal health
b. Diagnosing and treating problems promptly
c. Preventing further complications from developing
d. Conducting nursing research to evaluate clinical skills
Correct Answer: a. Assisting individuals and families achieve their optimal health
Explanation: Family-centered care emphasizes holistic support to promote the health and well-
being of both the individual and their family, fostering empowerment and involvement in care.
6. When reviewing the ethical dilemmas facing maternal and newborn nurses today, which
of the following has contributed to their complexity?
a. Limitation of available options
b. Support for one viable action
c. Advancement in technology
d. Consistent desirable standards
Correct Answer: c. Advancement in technology
Explanation: Advances in medical technology, such as genetic testing and fetal monitoring,
have introduced complex ethical dilemmas, including decisions about interventions and their
implications.
7. The frenulum and prepuce of the clitoris are formed by the?
, a. Fossa Navicularis
b. Mons veneris
c. Labia majora
d. Labia minora
Correct Answer: d. Labia minora
Explanation: The labia minora form the frenulum and prepuce of the clitoris, which are part of
the external female genitalia, providing protection and sensitivity to the clitoris.
8. The vas deferens is a:
a. Storage for spermatozoa
b. Site of spermatozoa production
c. Conduit of spermatozoa
d. Passageway of sperm
Correct Answer: c. Conduit of spermatozoa
Explanation: The vas deferens is a muscular tube that transports sperm from the epididymis to
the ejaculatory duct, serving as a conduit during ejaculation.
9. Cremasteric visits the clinic and is told that his sperm count is normal. A normal sperm
count ranges from:
a. 20 to 100/ml
b. 100,000 to 200,000/ml
c. 100 to 200/ml
d. 20 to 100 million/ml
Correct Answer: d. 20 to 100 million/ml
Explanation: A normal sperm count ranges from 20 to 100 million sperm per milliliter of
semen, as per standard reproductive health guidelines.
10. During which of the following phases of the menstrual cycle is it ideal for implantation
of a fertilized egg to occur?
a. Ischemic phase
b. Menstrual phase
c. Proliferative phase
d. Secretory phase
Correct Answer: d. Secretory phase
Explanation: The secretory phase, occurring after ovulation, is when the endometrium thickens
100 Questions Complete with Verified Answers
and Explanations for Guaranteed Pass
1. Mr. and Mrs. Cremasteric arrive at the clinic for their first prenatal visit. Mr. Crema
tells the nurse that the women in his family usually have girl babies first and wonders why
some women always have girls. The nurse's correct response is:
a. “The sex of the baby is determined by the sperm.”
b. “Some women are just more fertile with females.”
c. “Nature determines whether the baby will be a girl or a boy.”
d. “The sex of the baby is determined by the egg.”
Correct Answer: a. “The sex of the baby is determined by the sperm.”
Explanation: The sex of a baby is determined by the sperm, which carries either an X or Y
chromosome. The egg always contributes an X chromosome, while the sperm contributes either
an X (resulting in a female, XX) or a Y (resulting in a male, XY).
2. The hormone responsible for the development of the ovum during the menstrual cycle
is?
a. Estrogen
b. Progesterone
c. Follicle Stimulating Hormone (FSH)
d. Luteinizing Hormone (LH)
Correct Answer: c. Follicle Stimulating Hormone (FSH)
Explanation: FSH, produced by the pituitary gland, stimulates the growth and maturation of
ovarian follicles, which contain the developing ovum, during the follicular phase of the
menstrual cycle.
3. Which hormone is not responsible for differentiation of male reproductive organs during
fetal life?
a. Mullerian Duct Inhibitor (MDI)
b. Dihydrotestosterone
c. Dehydroepiandrosterone sulfate
d. Testosterone
,Correct Answer: c. Dehydroepiandrosterone sulfate
Explanation: Mullerian Duct Inhibitor (MDI), dihydrotestosterone, and testosterone are critical
for male reproductive organ differentiation. Dehydroepiandrosterone sulfate, primarily an
adrenal hormone, is not directly involved in this process.
4. Which principal factor causes vaginal pH to be acidic?
a. Cervical mucus changes
b. Secretion of the Skene’s gland
c. The action of the Doderlein bacillus
d. Secretion of the Bartholin’s gland
Correct Answer: c. The action of the Doderlein bacillus
Explanation: Doderlein bacillus (Lactobacillus) produces lactic acid in the vagina, maintaining
an acidic pH (around 3.5–4.5), which helps prevent infections.
5. Family-centered nursing care for women and newborns focuses on which of the
following?
a. Assisting individuals and families achieve their optimal health
b. Diagnosing and treating problems promptly
c. Preventing further complications from developing
d. Conducting nursing research to evaluate clinical skills
Correct Answer: a. Assisting individuals and families achieve their optimal health
Explanation: Family-centered care emphasizes holistic support to promote the health and well-
being of both the individual and their family, fostering empowerment and involvement in care.
6. When reviewing the ethical dilemmas facing maternal and newborn nurses today, which
of the following has contributed to their complexity?
a. Limitation of available options
b. Support for one viable action
c. Advancement in technology
d. Consistent desirable standards
Correct Answer: c. Advancement in technology
Explanation: Advances in medical technology, such as genetic testing and fetal monitoring,
have introduced complex ethical dilemmas, including decisions about interventions and their
implications.
7. The frenulum and prepuce of the clitoris are formed by the?
, a. Fossa Navicularis
b. Mons veneris
c. Labia majora
d. Labia minora
Correct Answer: d. Labia minora
Explanation: The labia minora form the frenulum and prepuce of the clitoris, which are part of
the external female genitalia, providing protection and sensitivity to the clitoris.
8. The vas deferens is a:
a. Storage for spermatozoa
b. Site of spermatozoa production
c. Conduit of spermatozoa
d. Passageway of sperm
Correct Answer: c. Conduit of spermatozoa
Explanation: The vas deferens is a muscular tube that transports sperm from the epididymis to
the ejaculatory duct, serving as a conduit during ejaculation.
9. Cremasteric visits the clinic and is told that his sperm count is normal. A normal sperm
count ranges from:
a. 20 to 100/ml
b. 100,000 to 200,000/ml
c. 100 to 200/ml
d. 20 to 100 million/ml
Correct Answer: d. 20 to 100 million/ml
Explanation: A normal sperm count ranges from 20 to 100 million sperm per milliliter of
semen, as per standard reproductive health guidelines.
10. During which of the following phases of the menstrual cycle is it ideal for implantation
of a fertilized egg to occur?
a. Ischemic phase
b. Menstrual phase
c. Proliferative phase
d. Secretory phase
Correct Answer: d. Secretory phase
Explanation: The secretory phase, occurring after ovulation, is when the endometrium thickens
