Nursing Elites

1. Which of the following is not a barrier method of birth control?

• A. Vaults
• B. Diaphragms
• C. Sterilization
• D. Cervical caps

Correct answer: C

Rationale: The correct answer is C, Sterilization. Sterilization is a permanent form of birth control that involves surgical procedures to prevent pregnancy by blocking the fallopian tubes or vas deferens. Barrier methods physically prevent sperm from reaching the egg, such as vaults, diaphragms, and cervical caps. These devices create a barrier to sperm, unlike sterilization. Therefore, choices A, B, and D are all considered barrier methods of birth control.

2. How many autosomes does a human primary spermatocyte have?

• A. 34
• B. 44
• C. 54
• D. 33

Correct answer: B

Rationale: A human primary spermatocyte has 44 autosomes. Autosomes are chromosomes that are not involved in determining an individual's sex. In humans, there are a total of 46 chromosomes in a somatic cell, with 22 pairs of autosomes and one pair of sex chromosomes. Therefore, the correct answer is 44 autosomes, making choice B the correct answer. Choices A, C, and D are incorrect as they do not represent the accurate number of autosomes in a human primary spermatocyte.

3. Lactational Amenorrhoea Method (LAM) is best for:

• A. Clients who do not wish to have any more children
• B. Clients with a baby less than 6 months postpartum
• C. Clients who want to wait before having a first or another child
• D. Clients with several sexual partners

Correct answer: B

Rationale: The correct answer is B: Clients with a baby less than 6 months postpartum. Lactational Amenorrhoea Method (LAM) is a highly effective temporary family planning method that is recommended for women who have recently given birth and are breastfeeding. LAM works best when the baby is less than 6 months old, the mother is exclusively breastfeeding, and her menstrual periods have not resumed. Choices A, C, and D are incorrect because LAM is specifically designed for postpartum women with infants less than 6 months old, focusing on the lactational infertility that occurs during exclusive breastfeeding.

4. _______ 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.

5. Which one of the following statements is NOT true about menstruation?

• A. The average amount of menstrual flow is 50 to 90 ml.
• B. The menstrual flow constitutes serous fluid, necrotic slough.
• C. The cycle is influenced by the ovarian hormones Estrogen and progesterone.
• D. The menstrual flow has non-clotting blood.

Correct answer: D

Rationale: The correct answer is D. The statement that menstrual flow has non-clotting blood is incorrect because menstrual blood can indeed clot. Choices A, B, and C are all true statements about menstruation. Choice A reflects the average amount of menstrual flow, choice B describes the components of menstrual flow, and choice C correctly identifies the ovarian hormones that influence the menstrual cycle.

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