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 A
Explanation
Choice A rationale
The uterus can indeed increase in size by 20 times its non-pregnant size. This significant expansion is necessary to accommodate the growing fetus and the increased blood supply required during pregnancy.
Choice B rationale
While the weight of the uterus does increase significantly during pregnancy, from about 100 grams to approximately 1,000 grams, this statement does not directly address the client’s concern about the uterus’s ability to stretch.
Choice C rationale
About 25% of the increased capacity of the uterus is related to uteroplacental content, but this does not fully explain the uterus’s ability to stretch to accommodate a full-term baby.
Choice D rationale
The increase in uterus size during pregnancy is not solely related to amniotic fluid volume. The uterus itself grows and stretches significantly to accommodate the developing fetus.
Correct Answer is C
Explanation
Choice A rationale
Heartburn and nausea are common symptoms during pregnancy and are not typically considered warning signs that require immediate medical attention.
Choice B rationale
Amenorrhea, or the absence of menstruation, is a normal sign of pregnancy and does not indicate a complication that needs immediate reporting.
Choice C rationale
Abdominal cramping can be a sign of a serious condition such as ectopic pregnancy or miscarriage, and it is important for the client to report this symptom immediately.
Choice D rationale
Urinary frequency is a common symptom during pregnancy due to hormonal changes and the growing uterus pressing on the bladder. It is not typically a warning sign that requires immediate medical attention.