A client expresses concern about teratogen exposure on fetal development.Which factor does the nurse emphasize as a priority related to the effects of teratogen exposure?
The mother’s size.
The timing and duration of exposure.
The type of teratogen.
The father’s health.
The Correct Answer is B
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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Correct Answer is C
Explanation
Choice A rationale
Changing professions is not necessary solely due to pregnancy. However, it is important to consider the specific risks associated with the current job. In this case, the client works in a hair and nail salon, which may expose her to various chemicals and environmental toxins. These toxins can pose risks to both the mother and the developing fetus. Therefore, the focus should be on minimizing exposure to these hazards rather than changing professions altogether.
Choice B rationale
While it is important to be mindful of weight limits during pregnancy to avoid strain and injury, this is not the primary concern for a client working in a hair and nail salon. The main risk in this scenario is exposure to environmental toxins, which can have more significant implications for the health of the mother and the developing fetus.
Choice C rationale
Exposure to environmental toxins is a significant concern for pregnant women working in hair and nail salons. These environments often contain chemicals such as formaldehyde, toluene, and phthalates, which can be harmful to both the mother and the developing fetus. Educating the client about the risks associated with these toxins and providing guidance on how to minimize exposure is crucial for ensuring a healthy pregnancy.
Choice D rationale
While reducing the number of clients seen in a day may help manage physical strain and fatigue, it does not address the primary concern of exposure to environmental toxins. The focus should be on minimizing contact with harmful chemicals and ensuring a safe working environment for the pregnant client.
Correct Answer is C
Explanation
Choice A rationale
The umbilical cord does not typically contain one artery and one vein. This configuration would not provide the necessary blood flow to support fetal development. The umbilical cord must have two arteries to carry deoxygenated blood and waste products from the fetus to the placenta, and one vein to carry oxygenated blood and nutrients from the placenta to the fetus.
Choice B rationale
Two veins and one artery is also incorrect. The umbilical cord must have two arteries to ensure that deoxygenated blood and waste products are efficiently transported from the fetus to the placenta. Having only one artery would not suffice for the required blood flow.
Choice C rationale
Two arteries and one vein is the correct configuration of the umbilical cord. The two arteries carry deoxygenated blood and waste products from the fetus to the placenta, while the single vein carries oxygenated blood and nutrients from the placenta to the fetus. This arrangement is essential for maintaining proper fetal circulation during pregnancy.
Choice D rationale
Two arteries and two veins is incorrect. The umbilical cord only needs one vein to carry oxygenated blood and nutrients from the placenta to the fetus. Having two veins would be redundant and unnecessary for fetal development.