Nokea
The nurse will plan to teach a 51-yr-old man who is scheduled for an annual physical examination about a(n)
- A. increased risk for testicular cancer.
- B. possible changes in erectile function.
- C. normal decreases in testosterone level.
- D. prostate specific antigen (PSA) testing.
Correct Answer: C
Rationale: The correct answer is C: normal decreases in testosterone level. At the age of 51, it is important to educate the man about the normal age-related decline in testosterone levels, which can affect various aspects of health. This information will help manage expectations and address potential symptoms. Option A is incorrect as testicular cancer risk typically decreases with age. Option B may be a concern but is not the primary focus of education for a routine physical exam. Option D (PSA testing) is more relevant for prostate health, which is not the main focus of education for a 51-year-old man's annual physical exam.
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What excess cellular component do spermatids shed to become sperm during spermiogenesis?
- A. DNA
- B. Cytoplasm
- C. Flagellum
- D. Mitochondria
Correct Answer: B
Rationale: During spermiogenesis, spermatids shed excess cytoplasm to become mature sperm. This process helps streamline the sperm structure for efficient motility and fertilization. DNA (choice A) is essential for sperm function and remains within the sperm. The flagellum (choice C) is actually a necessary structure for sperm motility. Mitochondria (choice D) play a crucial role in providing energy for sperm movement. Shedding excess cytoplasm ensures that the mature sperm is streamlined and optimized for its specific functions.
Which of the following assessments does a nurse obtain to ensure a thorough baseline history of a client?
- A. Age of menarche, the first menstruation
- B. Accident history
- C. Mother's past menstruation patterns
- D. Frequency of sexual activities
Correct Answer: A
Rationale: The age of menarche is a critical piece of information for understanding a woman's reproductive health history.
How many fused parts form sacrum?
- A. 4
- B. 5
- C. 6
- D. 3
Correct Answer: A
Rationale: The sacrum is formed by the fusion of 5 originally separate sacral vertebrae. However, the coccyx is the result of the fusion of 4 originally separate coccygeal vertebrae. Therefore, the sacrum itself is formed by the fusion of 4 parts, making choice A correct. Choices B, C, and D are incorrect as they do not accurately reflect the anatomical structure of the sacrum.
The Luteinizing hormone acts on the interstitial cells to produce
- A. Androgen
- B. Estrogen
- C. Progestin
- D. Testosterone
Correct Answer: D
Rationale: The correct answer is D, Testosterone. The luteinizing hormone acts on the interstitial cells in the testes to stimulate the production of testosterone. Testosterone is a male sex hormone responsible for the development of male reproductive tissues and characteristics. Androgen (choice A) is a broad term that includes testosterone, so it is not specific enough. Estrogen (choice B) and Progestin (choice C) are female sex hormones and are not produced by the interstitial cells in response to luteinizing hormone. Hence, the correct answer is D.
Which of the following statements is incorrect.
- A. a female has approximately 2-4 million oocytes at birth
- B. a female has approximately 6 million oogonia during fetal development
- C. a female ovulates about 2,000 to 4,000 oocytes during her life
- D. only approximately 1-5 oocytes are fertilized
Correct Answer: C
Rationale: The correct answer is C because a female actually ovulates only about 400-500 oocytes during her lifetime, not 2,000 to 4,000. This is due to the process of follicular atresia where many oocytes are lost before ovulation. Choice A is correct as females have a finite number of oocytes at birth. Choice B is correct as oogonia differentiate into primary oocytes during fetal development. Choice D is incorrect as typically only one oocyte is fertilized during each menstrual cycle.