Nursing Elites

1. Which of the following is a function of the placenta?

• A. The placenta secretes insulin.
• B. The placenta facilitates the exchange of gases and nutrients between mother and fetus.
• C. The placenta provides immunological protection to the fetus.
• D. The placenta stores fat-soluble vitamins for the fetus.

Correct answer: B

Rationale: The correct answer is B. The placenta serves as a crucial organ during pregnancy, facilitating the exchange of gases (oxygen and carbon dioxide) and nutrients (such as glucose and amino acids) between the mother and the developing fetus. This exchange is vital for the fetus's growth and development. Choices A, C, and D are incorrect. The placenta does not secrete insulin; insulin is produced by the pancreas. While the placenta provides some immune support to the fetus, its main role is not immunological protection. Additionally, storing fat-soluble vitamins is not a primary function of the placenta.

2. Which of the following is included in a pelvic examination?

• A. Inspection of internal genitalia
• B. Inspection of the cervix and vaginal wall
• C. Palpation of the vagina and vaginal cervix by digital examination
• D. Rectal examination

Correct answer: B

Rationale: The correct answer is B. A pelvic examination involves the inspection of the cervix and vaginal wall. This is typically done to assess the health of the reproductive organs and screen for any abnormalities. Choices A, C, and D are incorrect because while palpation and digital examination may be part of a pelvic exam, the specific focus on the cervix and vaginal wall is a key component that distinguishes it from other types of examinations.

3. _______ is a lytic enzyme released by the sperm.

• A. Hyaluronidase
• B. Trypsin
• C. Helicase
• D. None of the above

Correct answer: A

Rationale: Hyaluronidase is the correct answer. It is a lytic enzyme released by the sperm to help penetrate the egg's protective layer. Trypsin is a digestive enzyme produced in the pancreas, not released by sperm. Helicase is an enzyme involved in DNA replication, not released by sperm. 'None of the above' is incorrect as hyaluronidase fits the description provided in the question.

4. What is the role of the prolactin hormone?

• A. Stimulates the development of milk-producing tissue.
• B. Stimulates milk storage.
• C. Stimulates milk production.
• D. Stimulates milk ejection.

Correct answer: C

Rationale: The correct answer is C: 'Stimulates milk production.' Prolactin hormone is responsible for promoting the production of milk in the mammary glands. This hormone does not directly stimulate the development of milk-producing tissue (Choice A), milk storage (Choice B), or milk ejection (Choice D). While these functions are related to lactation, the primary role of prolactin is to facilitate milk production.

5. A woman is considered to be in menopause if she has experienced the cessation of her menses for a period of:

• A. 6 months
• B. 12 months
• C. 18 months
• D. 24 months

Correct answer: B

Rationale: Menopause is defined as the cessation of menses for 12 months. This period is significant because it indicates the end of a woman's reproductive years. Choices A, C, and D are incorrect as they do not align with the established criteria for defining menopause.

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