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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View 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","C","E"]
Explanation
Choice A rationale
Lying down after meals can exacerbate heartburn by allowing stomach acid to flow back into the esophagus. It is generally recommended to remain upright after eating to help prevent this.
Choice B rationale
Remaining upright after meals helps prevent heartburn by keeping stomach acid in the stomach and reducing the likelihood of acid reflux. This can be achieved by sitting or standing for at least 30 minutes after eating.
Choice C rationale
Eating small, frequent meals can help prevent heartburn by reducing the amount of food in the stomach at any one time, which decreases the pressure on the stomach and the likelihood of acid reflux.
Choice D rationale
Drinking large amounts of water before meals can increase the volume in the stomach and may exacerbate heartburn. It is generally better to drink fluids between meals rather than before or during meals.
Choice E rationale
Discussing antacid recommendations with the provider is appropriate. Antacids can help neutralize stomach acid and provide relief from heartburn, but it is important to consult with a healthcare provider to ensure that the chosen antacid is safe for use during pregnancy.