Nursing Elites

1. How does human sperm move?

• A. Flagella
• B. Cilia
• C. Neutrophils
• D. None of the above

Correct answer: A

Rationale: Human sperm moves using flagella, which are whip-like structures that aid in propulsion. Flagella are tail-like structures found in sperm cells and help them swim towards the egg for fertilization. Cilia are shorter, hair-like structures that are not involved in the movement of sperm. Neutrophils are a type of white blood cell involved in the immune response and are not related to sperm locomotion.

2. After fertilization, cell division occurs through a process of:

• A. Binary fission
• B. Meiosis
• C. Budding
• D. Mitosis

Correct answer: D

Rationale: After fertilization, the zygote undergoes cell division through the process of mitosis. Mitosis is the type of cell division that results in two daughter cells with the same number of chromosomes as the parent cell. Choice A, binary fission, is a form of asexual reproduction in prokaryotes, not the process that occurs after fertilization in multicellular organisms. Choice B, meiosis, is a type of cell division that leads to the formation of gametes with half the number of chromosomes, not the process that occurs after fertilization. Choice C, budding, is a form of asexual reproduction seen in some organisms like yeast, but it is not the process of cell division after fertilization.

3. Appropriate Technologies and Skills involve:

• A. Selecting technologies according to universal standards.
• B. Ensuring a doctor is present at the service-providing facility.
• C. Requiring that health care providers are nurses.
• D. Selecting technologies that are easy to use but not necessarily effective.

Correct answer: A

Rationale: The correct answer is A: 'Selecting technologies according to universal standards.' Appropriate technologies and skills involve choosing tools and methods based on universal standards to ensure effectiveness and efficiency. Choice B is incorrect because the presence of a doctor is not necessarily a defining factor for appropriate technologies and skills. Choice C is incorrect as appropriate technologies are not limited to being utilized only by nurses. Choice D is incorrect as the focus should be on selecting technologies that are both easy to use and effective, not one or the other.

4. Laparoscopy uses a small instrument known as a laparoscope to:

• A. Take very detailed photographs
• B. Insert a hysteroscope for D&C
• C. Perform an abortion procedure
• D. Perform a hysterectomy

Correct answer: A

Rationale: Laparoscopy uses a small instrument known as a laparoscope to take very detailed photographs of the pelvic organs. This procedure is commonly used for diagnostic purposes, to visualize internal organs, and to perform minimally invasive surgeries. Choice B, inserting a hysteroscope for D&C, is incorrect as hysteroscopy is a different procedure used to examine the inside of the uterus, not the pelvic organs. Choice C, performing an abortion procedure, is incorrect as laparoscopy is not used for abortion. Choice D, performing a hysterectomy, is incorrect as although laparoscopy can be used in some cases for hysterectomy, its primary purpose is not for this procedure.

5. Amniocentesis, a prenatal diagnostic test used to determine fetal sex, genetic anomalies, and biochemical abnormalities, is based on:

• A. The karyotyping of the amniotic fluid
• B. Chorionic villus sampling
• C. Umbilical cord blood sampling
• D. Ultrasound

Correct answer: A

Rationale: The correct answer is A. Amniocentesis involves the analysis of the fetal cells present in the amniotic fluid, which is extracted from the amniotic sac surrounding the developing fetus. This fluid contains cells shed by the fetus, which can be cultured and analyzed to obtain a karyotype, providing information about the fetal sex, genetic anomalies, and biochemical abnormalities. Choices B, C, and D are incorrect because chorionic villus sampling involves obtaining a sample of the chorionic villi from the placenta, not the amniotic fluid; umbilical cord blood sampling is typically used for other purposes like assessing the baby's blood for infections or genetic disorders; and ultrasound is a diagnostic imaging technique that does not involve the analysis of fetal cells for genetic information.

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