LE3 Gyne Flashcards
- Max GnRH pulse frequency happens at what phase?
A. Follicular phase
B. Luteal phase
C. Medullary phase
D. Ovulatory phase
A. Follicular phase
Rationale: Maximal GnRH pulse frequency occurs during the follicular phase, which is crucial for stimulating LH secretion needed for follicular maturation.
- Gonadotropin-dependent follicle:
A. Primordial follicle
B. Primary follicle
C. Pre-antral follicle
D. Secondary/Antral follicle
D. Secondary/Antral follicle
Rationale: The secondary or antral follicle is the first to become gonadotropin-dependent, requiring FSH and LH for its growth and maturation.
- The ovaries secrete:
A. Estrogen
B. Progesterone
C. Androstenedione
D. All of the above
D. All of the above
Rationale: The ovaries secrete estrogen, progesterone, and androstenedione as part of their role in regulating the menstrual cycle and reproductive health.
- TRUE regarding the process of a dominant follicle in the menstrual cycle:
A. Promotes cell multiplication
B. Has a well-vascularized theca cell layer
C. Increases estradiol secretion
D. All of the above
D. All of the above
Rationale: A dominant follicle promotes granulosa cell multiplication, has a well-vascularized theca cell layer, and increases estradiol secretion, contributing to its selection as the dominant follicle.
- This hormone entirely acts on granulosa cells:
A. FSH
B. LH
C. Progesterone
D. Estradiol
A. FSH
Rationale: FSH exclusively acts on granulosa cells, stimulating their proliferation and aiding in the aromatization of androgens to estrogens.
- This is a potent physiologic inhibitor of GnRH and gonadotropin secretion:
A. Estradiol-17B
B. Progesterone
C. LH
D. FSH
B. Progesterone
Rationale: Progesterone is a potent inhibitor of GnRH and gonadotropin secretion, particularly during the luteal phase, helping to suppress further ovulation.
- A 22-year-old medical student is experiencing mild hypogastric pain radiating to the LLQ at midcycle. Because she listened to the lecture on the menstrual cycle, she understands that the following statements are TRUE regarding ovulation, EXCEPT:
A. Signifies follicular rupture
B. Occurs 32 hours after the initial rise of LH surge
C. Occurs 32 hours after estradiol peak
D. Occurs 12-16 hours after LH surge peak
C. Occurs 32 hours after estradiol peak
Rationale: Ovulation occurs approximately 32 hours after the initial rise of LH surge, or 12-16 hours after the LH surge peak. It is not dependent on the estradiol peak directly.
- An infertile couple comes to your clinic due to infertility. Which of the following tests can be checked for ovarian reserve?
A. FSH
B. AMH
C. Inhibin B
D. All of the above
D. All of the above
Rationale: Ovarian reserve can be assessed by measuring FSH, AMH, and inhibin B levels, as each reflects different aspects of follicle health and quantity.
- Which of the following tests can denote ovarian aging?
A. FSH
B. AMH
C. Inhibin B
D. Antral follicle count
A. FSH
Rationale: Elevated FSH levels measured on days 2-3 of the menstrual cycle are indicative of diminished ovarian reserve, suggesting ovarian aging.
- Osteopenia is defined as:
A. T-score above -1
B. T-score between -1 and -2.5
C. T-score below -2.5
D. T-score between -0.5 and -1
B. T-score between -1 and -2.5
Rationale: Osteopenia is defined by a T-score between -1 and -2.5, indicating bone density that is lower than normal but not low enough to be classified as osteoporosis.
- A 69-year-old woman is seeking hormone replacement therapy (HRT). HRT is contraindicated in which of the following situations?
A. History of breast cancer
B. Severe osteoporosis
C. Menopausal symptoms causing severe distress
D. Decreased bone mineral density
A. History of breast cancer
Rationale: HRT is contraindicated in patients with a history of breast cancer due to the risk of hormone-dependent tumor growth.
- Which of the following patients will most likely experience surgical menopause?
A. 32-year-old who underwent laparoscopic tubal ligation
B. 38-year-old nulligravid who underwent total hysterectomy with bilateral salpingo-oophorectomy
C. 40-year-old who had a unilateral oophorectomy
D. 45-year-old who underwent hysterectomy without oophorectomy
B. 38-year-old nulligravid who underwent total hysterectomy with bilateral salpingo-oophorectomy
Rationale: Surgical menopause occurs when both ovaries are removed, resulting in a sudden loss of estrogen production. This patient had both ovaries removed, leading to surgical menopause.
- A 45-year-old woman underwent a total hysterectomy with bilateral salpingo-oophorectomy. Immediately after post-op, what is the best treatment advisable to this patient?
A. Estrogen alone
B. Estrogen and progesterone
C. Progesterone alone
D. No hormonal treatment
A. Estrogen alone
Rationale: After hysterectomy with bilateral salpingo-oophorectomy, estrogen is given for hormone replacement without the need for progesterone since there is no uterus to protect from endometrial hyperplasia.
- Brenda wants to conceive through oocyte donation. Which of the following statements is true regarding oocyte donation?
A. It is the first line of treatment for infertility
B. It is done only after multiple IVF failures or other second-line treatment failures
C. It is not recommended for women over 40
D. It is only done for women with premature ovarian failure
B. It is done only after multiple IVF failures or other second-line treatment failures
Rationale: Oocyte donation is typically considered after other treatments, such as multiple IVF cycles, have failed.
- Fatima has vulvovaginal itching. What is the most appropriate treatment?
A. Oral estrogen
B. Topical estrogen
C. Antihistamines
D. Oral progesterone
B. Topical estrogen
Rationale: Topical estrogen is used for vulvovaginal itching associated with atrophic changes, as it helps to improve the local tissue condition without systemic effects.
- Osteoporosis is defined as:
A. T-score between -1 and -2.5
B. T-score below -2.5
C. T-score above -1
D. T-score between -0.5 and -1
B. T-score below -2.5
Rationale: Osteoporosis is defined by a T-score below -2.5, indicating significantly reduced bone density and increased fracture risk.
- Which test can help confirm the beginning of menopause?
A. LH
B. Estrogen
C. FSH
D. Progesterone
C. FSH
Rationale: Elevated FSH levels (≥30 mIU/mL) are used to confirm menopause, especially when accompanied by the absence of menses for at least 12 months.
- A 76-year-old G2P2 (2002) was referred to you by an orthopedic surgeon due to osteoporosis and recurrent hip fractures. Which of the following treatments would be most appropriate for this patient?
A. Hormone replacement therapy
B. Bisphosphonates
C. Calcium supplementation alone
D. Denosumab
B. Bisphosphonates
Rationale: Bisphosphonates are commonly used for the prevention and treatment of osteoporosis, as they help to increase bone mass and reduce the risk of fractures.
- Why do patients with testicular feminization (androgen insensitivity syndrome) develop breasts?
A. Elevated androgen levels
B. Increased prolactin production
C. Absence of androgen action allows estrogen to stimulate breast development
D. Deficiency of luteinizing hormone
C. Absence of androgen action allows estrogen to stimulate breast development
Rationale: In androgen insensitivity syndrome, the absence of effective androgen action allows even low levels of estrogen to stimulate breast development. This condition results from mutations in the androgen receptor gene.
- Why is the length of the luteal phase approximately 14 days?
A. Because the corpus luteum’s life span is limited to about 14 days
B. Due to the variability in ovulation timing
C. It depends on the length of the follicular phase
D. It is influenced by the hypothalamic-pituitary axis
A. Because the corpus luteum’s life span is limited to about 14 days
Rationale: The luteal phase lasts approximately 14 days because the corpus luteum, which forms after ovulation, has a life span of about 14 days. If pregnancy does not occur, it degenerates, leading to a decrease in progesterone and the onset of menstruation.
- In a septate uterus, the septum has poor blood supply and contains fibrous and/or myometrial tissues. Which of the following statements is TRUE?
A. The septum has an adequate blood supply
B. The septum contains glandular tissue
C. The septum contains fibrous and/or myometrial tissues with poor blood supply
D. The septum is made up entirely of normal endometrial tissue
C. The septum contains fibrous and/or myometrial tissues with poor blood supply
Rationale: In a septate uterus, the septum is composed of fibrous or myometrial tissue with a poor blood supply, which can contribute to implantation failure or recurrent pregnancy loss.
- A 2-year-old asymptomatic child was brought to the clinic due to fusion of labia minora. What is the best management?
A. Surgical separation
B. Topical estrogen cream
C. Oral estrogen
D. No treatment needed
B. Topical estrogen cream
Rationale: Labial adhesion in a young child can often be treated with topical estrogen cream, which helps to soften and separate the fused labia. Surgery is typically reserved for cases where medical treatment fails.
- What is the effect of estrogen on bone formation?
A. Decreases osteoblast activity
B. Promotes osteoblast activity
C. Increases osteoclast activity
D. Has no effect on bone cells
B. Promotes osteoblast activity
Rationale: Estrogen promotes osteoblast activity, which helps in bone formation and maintenance. This is why decreased estrogen levels during menopause can lead to reduced bone density and osteoporosis.
- Screening for colorectal cancer starts at what age?
A. 40
B. 45
C. 50
D. 60
B. 45
Rationale: Regular screening for colorectal cancer is recommended to start at age 45, according to the U.S. Preventive Services Task Force. Early detection and removal of polyps can significantly reduce the risk of developing colorectal cancer.