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 ["A","C","D","E"]
Explanation
Choice A rationale
Nausea is a common symptom during pregnancy, especially in the first trimester. It is often referred to as morning sickness, although it can occur at any time of the day. The client’s report of nausea almost every day for the last two months, but lasting for a shorter period of the day, is consistent with typical pregnancy-related nausea.
Choice B rationale
Malodorous vaginal discharge is not a common or expected physiological change during pregnancy. It may indicate an infection or other medical condition that requires further evaluation and treatment.
Choice C rationale
Increased frequency of urination is a common symptom during pregnancy. It occurs due to hormonal changes and the growing uterus putting pressure on the bladder. The client’s report of voiding more frequently without pain is consistent with normal physiological changes during pregnancy.
Choice D rationale
Fundal height measurement is used to assess fetal growth and development. At 18 weeks of gestation, the fundal height is typically around 18 cm, which corresponds to the number of weeks of pregnancy. This finding is consistent with expected physiological changes during pregnancy.
Choice E rationale
The darkened line of skin noted midline on the abdomen, known as the linea nigra, is a common physiological change during pregnancy. It is caused by increased pigmentation and is a normal finding.
Choice F rationale
A dry, reddened patch of skin below the knee bilaterally is not a common or expected physiological change during pregnancy. It may indicate a dermatological condition or other medical issue that requires further evaluation.
Correct Answer is D
Explanation
Choice A rationale
A 25%-35% increase in blood volume is lower than the actual increase observed during pregnancy. This choice is incorrect.
Choice B rationale
A 10%-20% increase in blood volume is significantly lower than the actual increase observed during pregnancy. This choice is incorrect.
Choice C rationale
A 60%-70% increase in blood volume is higher than the actual increase observed during pregnancy. This choice is incorrect.
Choice D rationale
The correct percentage of increased blood volume during pregnancy is 40%-50%. This increase helps accommodate the growing fetus and placenta, and prepares the body for the blood loss that occurs during delivery.