Nokea
A client is undergoing sentinel lymph node mapping. A nurse explains that this new technique reduces the likelihood of which
- A. Lymphedema
- B. Excessive scarring
- C. Cellulitis
- D. None of the above
Correct Answer: A
Rationale: Sentinel lymph node mapping helps reduce the risk of lymphedema by limiting the number of lymph nodes removed.
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Which factor causes the act of ovulation?
- A. blood pressure
- B. LH levels
- C. FSH levels
- D. estrogen
Correct Answer: B
Rationale: The correct answer is B: LH levels. Ovulation is triggered by a surge in luteinizing hormone (LH) levels, which causes the release of the mature egg from the ovary. LH surge is a key event in the menstrual cycle that leads to ovulation.
Explanation:
1. LH surge stimulates the release of the egg from the dominant follicle in the ovary.
2. This surge typically occurs around the middle of the menstrual cycle.
3. Ovulation occurs within 24-36 hours after the LH surge.
4. FSH (Choice C) is involved in follicle development but does not directly cause ovulation.
5. Estrogen (Choice D) plays a role in the menstrual cycle but does not directly trigger ovulation.
6. Blood pressure (Choice A) is not involved in the process of ovulation.
Summary: LH levels are the primary factor that causes ovulation by triggering the release of the egg from the ovary
Which structure provides a temporary
- A. seminal gland storage site for immature sperm?
- B. tunica albuginea
- C. ductus deferens
- D. ductus deferens
Correct Answer: A
Rationale: The correct answer is A, seminal gland, which provides a temporary storage site for immature sperm. Seminal glands are responsible for producing seminal fluid which nourishes and protects the sperm. The immature sperm are stored in the seminal gland until they mature. The other choices, B tunica albuginea, is a tough layer surrounding the testes, not involved in sperm storage. C ductus deferens is a tube that transports mature sperm from the epididymis to the urethra, not for storage of immature sperm. D is a duplicate of C, so it is incorrect.
Medial lower arm bone is
- A. Humerus
- B. Radius
- C. Ulna
- D. Carpals
Correct Answer: C
Rationale: The correct answer is C: Ulna. The ulna is the medial lower arm bone located on the pinky side. It articulates with the humerus at the elbow joint and with the radius at the wrist joint. The humerus (A) is the upper arm bone, not located in the lower arm. The radius (B) is the lateral lower arm bone, not the medial one. Carpals (D) refer to the wrist bones, not the lower arm bones. Therefore, the ulna is the correct answer as it is the specific bone that fits the description of being the medial lower arm bone.
At the level of the testicle, the straight tubules:
- A. are located inside the lobules;
- B. continue the convoluted seminiferous tubules;
- C. open in the rete testis;
- D. open in the epididymal duct;
Correct Answer: C
Rationale: The correct answer is C because the straight tubules open into the rete testis, which is a network of tubules located at the hilum of the testis. This is where sperm produced in the seminiferous tubules are collected and transported to the epididymis for maturation. The other choices are incorrect because A is not accurate as straight tubules are not located inside the lobules, B is incorrect as straight tubules are a separate structure from the convoluted seminiferous tubules, and D is inaccurate as straight tubules do not open directly into the epididymal duct.
A patient tells the nurse that he has been informed he has internal hemorrhoids and asks whether there are different types of hemorrhoids. What is the nurse’s most appropriate response?
- A. Internal hemorrhoids are usually seen outside the anus and appear blue.
- B. Sometimes patients have other diseases, such as anal warts, that may be mistaken for internal hemorrhoids.
- C. Internal hemorrhoids are found higher in the rectum and usually can’t be felt unless they are infected or prolapsed.
- D. Both internal and external hemorrhoids arise from the same general area and produce the same kinds of symptoms.
Correct Answer: C
Rationale: Step-by-step rationale for why choice C is correct:
1. Internal hemorrhoids are located higher in the rectum, typically above the dentate line.
2. They are not usually palpable unless they are prolapsed or thrombosed.
3. This differentiates them from external hemorrhoids, which are located below the dentate line and are often palpable.
4. Choice C accurately describes the typical characteristics of internal hemorrhoids.
5. Choices A, B, and D provide inaccurate information regarding the location, appearance, and characteristics of internal hemorrhoids, making them incorrect.