NCLEX : Reproductive Physiology

Study concepts, example questions & explanations for NCLEX

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Example Questions

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Example Question #1 : Reproductive Physiology

What is the most common cause of anovulatory infertility? 

Possible Answers:

Polycystic ovarian syndrome (PCOS)

Poor nutrition

Stress

Hypogonadism

Correct answer:

Polycystic ovarian syndrome (PCOS)

Explanation:

In polycystic ovarian syndrome (PCOS), luteinizing hormone (LH) levels are elevated, while follicle-stimulating hormone (FSH) levels are often low. Because FSH aromatizes androgens to estrogen, low FSH will cause androgens to increase. Low levels of FSH and high androgens keep the follicle from maturing & prevent ovulation. Hypogonadism is significantly more rare, and while extreme stress and poor nutrition may inhibit ovulation, in the United States PCOS is the leading cause of anovulation (failure to release an ovule from the ovary). 

Example Question #2 : Reproductive Physiology

Which of the following hormones is a precursor for both estrogen and testosterone?

Possible Answers:

Dehydroepiandrosterone (DHEA)

Estrone

Dihydrotestosterone

Aldosterone

Correct answer:

Dehydroepiandrosterone (DHEA)

Explanation:

Dehydroepiandrosterone (DHEA), an endogenous steroid hormone that is a precursor for both estrogen and testosterone, is synthesized from pregnenolone in the gonads, the adrenal glands, and the brain.

Example Question #2 : Reproductive Physiology

What is the most abundant circulating steroid hormone in humans?

Possible Answers:

Dehydroepiandrosterone (DHEA)

Cortisol

Aldosterone

Pregnenolone

Correct answer:

Dehydroepiandrosterone (DHEA)

Explanation:

The most abundant circulating steroid hormone in the human body is Dehydroepiandrosterone (DHEA). DHEA is a precursor to several important sex hormones including testosterone and estrogen. It also functions as a neuroactive steroid.

Example Question #3 : Reproductive Physiology

Which of the following hormones is secreted by the corpus luteum in order to prepare the endometrium for implantation of a fertilized ovum? 

Possible Answers:

Pregnenolone 

Lutenizing hormone 

Progesterone

Estrogen

Correct answer:

Progesterone

Explanation:

The hormone that is secreted by the corpus luteum in order to prepare the endometrium for implantation of a fertilized ovum is progesterone. Progesterone prevents the constriction of blood vessels to the endometrium, which in turn prevents the shedding of the endometrial lining (menses). It also alters the endometrium, converting it to it's secretory phase in preparation for implantation.

Example Question #4 : Reproductive Physiology

Which of the following is a normal value of follicle-stimulating hormone (FSH) for a menstruating adult female?

Possible Answers:

Correct answer:

Explanation:

Normal FSH values for a menstruating adult female are . A FSH of  would be considered normal in a premenarchal female, while normal FSH after menopause can range from .

Example Question #5 : Reproductive Physiology

What is the function of follicle-stimulating hormone in a menstruating woman?

Possible Answers:

It triggers the rupture and release of the mature egg from the follicle

It stimulates follicles of the uterus in preparation for implantation

It stimulates the formation of the corpus luteum

It stimulates the maturation of follicles in the ovary

Correct answer:

It stimulates the maturation of follicles in the ovary

Explanation:

In a menstruating woman, follicle-stimulating hormone stimulates the maturation of follicles in the ovary. Rupture of the mature follicle and formation of the corpus luteum are both stimulated by lutenizing hormone (LH). The uterus itself does not contain follicles.

Example Question #6 : Reproductive Physiology

Which of the following is a normal follicle-stimulating hormone (FSH) level in an adult male?

Possible Answers:

Correct answer:

Explanation:

In an adult male, normal FSH can range from . It may be slightly lower in children. Follicle-stimulating hormone is released from the anterior pituitary gland; its target is the testes.

Example Question #7 : Reproductive Physiology

Which of the following is a function of follicle stimulating hormone (FSH) in an adult male? 

Possible Answers:

It triggers the initiation of spermatogenesis

It stimulates the Sertoli cells of the testes to produce androgen-binding protein

It stimulates primary spermatocytes to undergo meiosis

All of these

Correct answer:

All of these

Explanation:

In a healthy adult male, follicle stimulating hormone stimulates the Sertoli cells of the testes to produce androgen-binding protein, it stimulates primary spermatocytes to undergo meiosis, and triggers the initiation of spermatogenesis.

Example Question #8 : Reproductive Physiology

Which of the following is not a function of luteinizing hormone (LH) in a menstruating female?

Possible Answers:

It triggers the release of the mature egg during ovulation

It stimulates the maturation of follicles within the ovary

It stimulates the production of estrogen by the ovary

It triggers the development of the corpus luteum

Correct answer:

It stimulates the maturation of follicles within the ovary

Explanation:

Luteinizing hormone stimulates the production of estrogen by the ovary, triggers the release of the mature egg during ovulation, and then stimulates the ruptured follicle to develop into the corpus luteum, the structure responsible for providing progesterone to the endometrium in preparation for implantation, if a pregnancy were to occur. 

Example Question #9 : Reproductive Physiology

Which of the following is a normal value for luteinizing hormone (LH) in an adult female experiencing normal menstrual cycles?

Possible Answers:

All of these

Correct answer:

All of these

Explanation:

In a menstruating female, LH values can vary widely during the menstrual cycle. It is its highest at the peak of the menstrual cycle  and lowest during the luteal phase of the menstrual cycle .

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