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A 3-month-old baby has been diagnosed with cystic fibrosis (CF). The mother says, 'How could this happen? I had an amniocentesis during my pregnancy and everything was supposed to be normal!' What must the nurse understand about this situation?
- A. Cystic fibrosis cannot be diagnosed by amniocentesis.
- B. The baby may have an uncommon genetic variant of the disease.
- C. It is possible that the laboratory technician made an error.
- D. Instead of obtaining fetal cells the doctor probably harvested maternal cells.
Correct Answer: B
Rationale: Uncommon genetic variants of CF may not be detected by standard testing.
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The nurse is educating a client about hysterosalpingograms. Which information should the nurse include in her discussion prior to this procedure?
- A. This procedure is always performed under general anesthesia.
- B. This procedure should be performed after ovulation has occurred.
- C. This procedure involves instillation of a radiopaque dye into the uterine cavity.
- D. After the procedure, the client should take Tylenol to decrease cramping.
Correct Answer: C
Rationale: Rationale:
C is correct because hysterosalpingogram involves injecting a radiopaque dye into the uterine cavity to visualize the uterus and fallopian tubes. This helps identify any blockages or abnormalities.
A is incorrect as the procedure is usually done without general anesthesia.
B is incorrect as the procedure is typically scheduled in the early follicular phase.
D is incorrect as Tylenol may not be sufficient for managing post-procedure cramping.
A nurse is describing how the fetus moves through the birth canal. Which component would the nurse identify as being most important in allowing the fetal head to move through the pelvis?
- A. sutures
- B. fontanelles
- C. frontal bones
- D. biparietal diameter
Correct Answer: A
Rationale: Sutures are important because they allow the cranial bones to overlap in order for the head to adjust in shape when pressure is exerted on it. Fontanelles are the intersections formed by the sutures. The frontal bones and biparietal diameter are not as crucial in allowing the fetal head to move through the pelvis.
What is the purpose of intracytoplasmic sperm injection (ICSI) in IVF procedures?
- A. To allow multiple sperm to fertilize an egg for better results.
- B. To assist fertilization by injecting a single sperm directly into an egg.
- C. To ensure ovulation occurs during stimulation cycles.
- D. To bypass ovarian stimulation entirely.
Correct Answer: B
Rationale: The correct answer is B, to assist fertilization by injecting a single sperm directly into an egg. In ICSI, a single sperm is carefully selected and injected into an egg to aid fertilization, particularly in cases of male infertility. This method ensures that fertilization occurs successfully by bypassing natural barriers. Choice A is incorrect as multiple sperm fertilizing an egg can lead to genetic abnormalities. Choice C is incorrect as ovulation is induced before egg retrieval, not during stimulation cycles. Choice D is incorrect as ovarian stimulation is necessary to produce multiple eggs for retrieval.
How does lifestyle modification improve male fertility?
- A. By directly increasing sperm motility and morphology.
- B. By reducing stress and improving overall reproductive health.
- C. By guaranteeing successful fertilization.
- D. By eliminating the need for medical treatments.
Correct Answer: B
Rationale: The correct answer is B because lifestyle modifications such as reducing stress, maintaining a healthy weight, avoiding harmful substances, and exercising can improve male fertility by optimizing overall reproductive health. Stress reduction can positively impact hormone levels and sperm production. Choices A, C, and D are incorrect because lifestyle modifications do not directly guarantee successful fertilization, eliminate the need for medical treatments, or directly improve sperm motility and morphology.
A woman telephones the prenatal clinic and reports that her water just broke. Which suggestion by the nurse would be most appropriate?
- A. Call us back when you start having contractions.
- B. Come to the clinic or emergency department for an evaluation.
- C. Drink 3 to 4 glasses of water and lie down.
- D. Come in as soon as you feel the urge to push.
Correct Answer: B
Rationale: When a woman's water breaks, there is an increased risk of infection and cord prolapse, making it important for the woman to seek evaluation at the clinic or emergency department. Waiting for contractions to start, drinking water and lying down, and waiting to come in only when feeling the urge to push are not appropriate responses in this situation.