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Based on the karyotype shown below, which of the following conclusions can the nurse make about the female baby?
- A. She has a genetically normal karyotype.
- B. She has trisomy 21.
- C. She has fragile X syndrome.
- D. She has an autosomal monosomy.
Correct Answer: B
Rationale: Trisomy 21 (Down syndrome) is indicated by three copies of chromosome 21.
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A client is to receive Pergonal (menotropins) injections for infertility prior to in vitro fertilization. Which of the following is the expected action of this medication?
- A. Prolongation of the luteal phase.
- B. Stimulation of ovulation.
- C. Suppression of menstruation.
- D. Promotion of cervical mucus production.
Correct Answer: B
Rationale: Pergonal stimulates ovulation by promoting the maturation and release of ova.
A nurse is teaching a group about the benefits of folic acid supplementation before conception. What should the nurse emphasize?
- A. Folic acid helps prevent neural tube defects in the developing fetus.
- B. Folic acid improves the chances of multiple pregnancies.
- C. Folic acid is only needed during the third trimester of pregnancy.
- D. Folic acid reduces the need for prenatal vitamins.
Correct Answer: A
Rationale: The correct answer is A: Folic acid helps prevent neural tube defects in the developing fetus. The rationale is that folic acid is essential for the development of the neural tube in early pregnancy, which is crucial for the baby's brain and spinal cord formation. By emphasizing this benefit, the nurse educates about the importance of folic acid before conception to reduce the risk of neural tube defects. Choices B, C, and D are incorrect because folic acid does not improve chances of multiple pregnancies, is needed before conception and throughout pregnancy (not just in the third trimester), and is a supplement that complements prenatal vitamins rather than replacing them.
Of the following karyotype results, which indicates a finding of Turner syndrome?
- A. 46 XY
- B. 46 YY
- C. 46 XX
- D. 46 X
Correct Answer: D
Rationale: Certainly. The correct answer is D (46 X) for Turner syndrome. Turner syndrome is characterized by a missing or partially missing X chromosome in females. Therefore, a karyotype of 45,X or 46,X would indicate Turner syndrome. Choice A (46 XY) is a normal male karyotype, B (46 YY) is not a valid karyotype, and C (46 XX) is a normal female karyotype.
A woman undergoing evaluation of infertility states, "At least when we're through with all of these tests, we will know what is wrong." The nurse's best response is
- A. "I know the test will identify what is wrong."
- B. "I'm sure that once you finish these tests, your problem will be resolved."
- C. "Even with diagnostic testing, infertility remains unexplained in about 20% of couples."
- D. "Once you've identified your problem, you may want to look at the option of adoption."
Correct Answer: C
Rationale: The correct answer is C because it acknowledges the uncertainty in diagnosing infertility, which can remain unexplained in about 20% of couples even after testing. This response is the best because it provides realistic information without giving false hope or making assumptions.
Choice A is incorrect because it asserts that the tests will definitely identify the problem, which is not always the case. Choice B is incorrect as it assumes the problem will be resolved after testing, which may not be true. Choice D is incorrect as it jumps to the conclusion of adoption without addressing the uncertainty of infertility testing.
The nurse is educating a client on lifestyle changes to support fertility. Which recommendation is appropriate?
- A. Avoid caffeine and alcohol entirely.
- B. Engage in moderate exercise and maintain a balanced diet.
- C. Increase daily protein intake to boost fertility.
- D. Use herbal supplements for better ovulation.
Correct Answer: B
Rationale: The correct answer is B because moderate exercise and a balanced diet are essential for overall health, including fertility. Exercise can help regulate hormones and improve circulation to reproductive organs. A balanced diet provides necessary nutrients for optimal reproductive function.
Choice A is incorrect as complete avoidance of caffeine and alcohol is not necessary for fertility. Choice C is incorrect as excessive protein intake can negatively impact fertility. Choice D is incorrect as herbal supplements can have unknown effects on fertility and should be avoided without consulting a healthcare provider.