The nurse is reviewing the OB history of a multigravida client at her seven-week prenatal appointment. Which of the following statements would indicate that the client would benefit from genetic testing?
My first child has blue eyes.
My kids that were born preterm have reactive airway disease.
My two oldest children had neonatal jaundice.
My youngest child has Tay-Sachs Disease.
The Correct Answer is D
Choice A rationale
Having a child with blue eyes is not an indication for genetic testing. Eye color is a polygenic trait and does not typically warrant genetic testing.
Choice B rationale
Reactive airway disease in preterm children is not a direct indication for genetic testing. This condition is more related to the complications of prematurity rather than genetic factors.
Choice C rationale
Neonatal jaundice is common and usually resolves without long-term issues. It is not typically an indication for genetic testing unless there is a suspicion of an underlying genetic disorder.
Choice D rationale
Tay-Sachs Disease is a genetic disorder, and having a child with this condition is a strong indication for genetic testing. This would help determine the risk of recurrence in future pregnancies and provide valuable information for family planning.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
The placenta does not cushion the fetus from maternal movement. Instead, the amniotic fluid within the amniotic sac provides cushioning and protection to the fetus from external forces and maternal movements.
Choice B rationale
The placenta does not provide thermoregulation. Thermoregulation is primarily managed by the mother’s body. The placenta’s main functions are related to nutrient and gas exchange, hormone production, and waste removal.
Choice C rationale
The placenta is responsible for metabolic and gas exchange. It provides oxygen and nutrients to the fetus while removing waste products from the fetal blood. This exchange occurs through the placental barrier, which separates maternal and fetal blood.
Choice D rationale
The placenta does not provide a sterile environment. The amniotic sac and its fluid help maintain a sterile environment for the fetus. The placenta’s role is more focused on nutrient and gas exchange, hormone production, and waste removal.
Correct Answer is B
Explanation
Choice A rationale
The mother’s size does not significantly impact the effects of teratogen exposure on fetal development. Teratogens are substances that cause congenital abnormalities in a developing fetus, and their impact is more related to the timing, duration, and type of exposure rather than the mother’s physical characteristics.
Choice B rationale
The timing and duration of exposure are critical factors in determining the effects of teratogen exposure. Teratogens can cause the most harm during specific periods of fetal development, particularly during the first trimester when organogenesis occurs. The duration of exposure also influences the severity of the effects, with prolonged exposure leading to more significant developmental issues.
Choice C rationale
The type of teratogen is also important, as different teratogens can cause different types of congenital abnormalities. For example, alcohol can lead to fetal alcohol syndrome, while certain medications can cause neural tube defects. However, the timing and duration of exposure are generally considered more critical factors.
Choice D rationale
The father’s health does not directly impact the effects of teratogen exposure on fetal development. Teratogens affect the fetus through the mother’s exposure to harmful substances during pregnancy.
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