Nokea
What is the source and function of HCG?
- A. uterus; cause labor
- B. ovary; stimulates FSH
- C. placenta; inhibits LH
- D. placenta; mimics LH
Correct Answer: D
Rationale: The correct answer is D: placenta; mimics LH.
Rationale:
1. HCG (Human Chorionic Gonadotropin) is produced by the placenta during pregnancy.
2. HCG mimics the action of LH (Luteinizing Hormone) to support the corpus luteum in producing progesterone.
3. This helps maintain the uterine lining and supports the pregnancy.
Summary:
A: Incorrect - Uterus does not produce HCG, and it does not cause labor.
B: Incorrect - Ovary does not produce HCG, and it does not stimulate FSH.
C: Incorrect - Placenta produces HCG, but it does not inhibit LH; instead, it mimics LH's actions.
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Of the following antibiotics, which one is used to treat chlamydia?
- A. Acyclovir
- B. Ciprofloxacin
- C. Tetracycline
- D. Ceftriaxone
Correct Answer: C
Rationale: Tetracycline is commonly used to treat chlamydia infections.
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.
A 67-year-old male client had serum laboratory tests performed during his annual examination. The nurse reviews his results, as
- A. specific antigen: 10 ng/mL (10 mcg/L); prolactin: 5 ng/mL (217.4 pmol). What action by the nurse is best?
- B. Assess for possible galactorrhea with breast discharg
- C. Note the possibility of a testicular tumor.
- D. Communicate that results were normal.
Correct Answer: D
Rationale: The correct answer is D. The nurse should communicate that the results were normal because the specific antigen and prolactin levels fall within the normal range for a 67-year-old male. Specific antigen levels around 10 ng/mL are typical for this age group, and prolactin levels of 5 ng/mL are also within normal limits. Option A is not necessary as the results are normal. Option B is incorrect as galactorrhea is not indicated by the lab results. Option C is also incorrect as there is no indication of a testicular tumor based on the lab values. Therefore, the best course of action is to inform the client that the results are normal.
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.
Choose the CORRECT match. Animals Fertilization Embryonic development
- A. Dog Internal Oviparity
- B. Duck External Viviparity
- C. Frog External Oviparity
- D. Cat Internal Ovoviviparity
Correct Answer: C
Rationale: The correct match is C: Frog - External Oviparity. Frogs lay eggs externally, and their fertilization and embryonic development occur outside the female's body. This is characteristic of oviparous animals. The other choices are incorrect because:
A: Dog - Internal Oviparity, dogs give birth to live young and do not lay eggs.
B: Duck - External Viviparity, ducks also give birth to live young and do not lay eggs externally.
D: Cat - Internal Ovoviviparity, cats give birth to live young but retain eggs inside their body until they hatch.