Nokea
The sperm cells:
- A. become mobile in the seminal fluid;
- B. are microscopic cells;
- C. are stored in the crotum;
- D. are of three different kinds;
Correct Answer: A
Rationale: Step-by-step rationale for choice A being correct:
1. Sperm cells need to be mobile to reach the egg for fertilization.
2. Seminal fluid provides the environment for sperm motility.
3. Sperm cells acquire motility in the seminal fluid due to specific nutrients and ions present.
Summary of why other choices are incorrect:
- Choice B: Being microscopic is a general characteristic of sperm cells but not specific to their mobility.
- Choice C: Sperm cells are stored in the epididymis, not the "crotum."
- Choice D: Sperm cells are all of the same kind, not three different kinds.
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Which of the following instructions would a nurse give a client undergoing treatment for an HSV-2 infection?
- A. Have an annual Papanicolaou smear to detect cervical cancer.
- B. Have an annual mammogram to detect breast cancer.
- C. Increase the frequency of breast self-examination for early detection of any breast disorders.
- D. Undergo an HIV detection test every six months.
Correct Answer: A
Rationale: Regular Pap smears are important for detecting cervical changes related to HSV-2.
You have obtained these data about a 68-year-old client who is ready for discharge from the ED and has a new prescription for nitroglycerin (Nitro-Stat) 0.4 mg sublingual. Which information about the client has the most immediate implications for client teaching?
- A. The client has benign prostatic hypertrophy and some urinary hesitancy.
- B. The client's father and two brothers all have had myocardial infarctions.
- C. The client uses sildenafil (Viagra) several times weekly for erectile dysfunction.
- D. The client is unable to remember when he first experienced chest pain.
Correct Answer: C
Rationale: Sildenafil and nitroglycerin together can cause severe hypotension; this interaction must be addressed immediately.
A 20-year-old woman is not having menstrual cycles. Her plasma progesterone concentration is found to be minimal. What is the explanation for the low level of progesterone?
- A. LH secretion rate is elevated
- B. LH secretion rate is suppressed
- C. FSH secretion rate is suppressed
- D. No corpus luteum is present
Correct Answer: D
Rationale: The correct answer is D: No corpus luteum is present. The corpus luteum is responsible for producing progesterone after ovulation. Without a corpus luteum, progesterone levels will be minimal, leading to a lack of menstrual cycles.
A: If LH secretion rate is elevated, it would lead to increased corpus luteum formation and progesterone production.
B: If LH secretion rate is suppressed, there would be insufficient stimulation for corpus luteum formation and progesterone production.
C: FSH is responsible for follicle development, not progesterone production.
___________is an organelle that helps the sperm to penetrate the ovum.
- A. Acrosome
- B. Zona pellucida
- C. Megalis
- D. None of the above
Correct Answer: A
Rationale: The correct answer is A: Acrosome. The acrosome is an organelle in the head of the sperm that contains enzymes which help the sperm penetrate the outer layer of the ovum during fertilization. It plays a crucial role in the fertilization process.
Explanation of other choices:
B: Zona pellucida is the outer membrane of the ovum that the sperm needs to penetrate, not an organelle within the sperm itself.
C: Megalis is not a relevant organelle involved in fertilization.
D: None of the above is incorrect as the acrosome is the specific organelle that aids in sperm penetration of the ovum.
When does a nurse use transillumination of the scrotum?
- A. When the patient has tortuosity of the veins along the spermatic cord
- B. When the patient has an indirect hernia
- C. When there is a mass or fluid in the epididymis
- D. When there is twisting of the testicle and spermatic cord
Correct Answer: C
Rationale: Transillumination of the scrotum is used when there is a mass or fluid in the epididymis. Transillumination helps to differentiate between solid masses and fluid-filled structures. It is not used for tortuosity of veins (A), indirect hernia (B), or twisting of the testicle and spermatic cord (D). Vein tortuosity is diagnosed through physical examination, hernias are detected through palpation, and testicular torsion is confirmed through Doppler ultrasound.