The parents are questioning why their newborn was born deaf when there are no other deaf family members.
At which stage of the pregnancy could the nurse explore possible exposure to a teratogenic agent?
18 weeks after fertilization.
6 weeks after fertilization.
12 weeks after fertilization.
Incomplete question/stem.
The Correct Answer is B
“6 weeks after fertilization.” Teratogens can begin affecting the developing embryo as early as 10 to 14 days after conception 1.
During embryonic development, there are periods when the developing organ systems show more sensitivity to teratogens.
Choice A is incorrect because 18 weeks after fertilization is not the earliest stage of pregnancy when exposure to a teratogenic agent could occur.
Choice C is incorrect because 12 weeks after fertilization is not the earliest stage of pregnancy when exposure to a teratogenic agent could occur.
Choice D is incorrect because this is not an incomplete question/stem.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Compartment syndrome is a condition where increased pressure within a muscle compartment causes muscle and nerve damage along with pain.
One of the symptoms of compartment syndrome is severe pain that increases with the stretching of muscles.
Choice A is not correct because blue-looking nail beds on the toes are not a symptom of compartment syndrome.
Choice B is not correct because a weak femoral pulse is not a symptom of compartment syndrome.
Choice C is not correct because the inability to plantarflex the foot is not a symptom of compartment syndrome.
Correct Answer is C
Explanation
The MSAFP test measures the levels of alpha-fetoprotein (AFP) in the mother’s body.
AFP is a protein produced by the baby during pregnancy.
Too much AFP in the mother’s body may indicate that the baby is at risk of a neural tube defect, like spina bifida.
Choice A is incorrect because this test does not screen for gestational diabetes.
Choice B is incorrect because this test does not screen for fetal maturity.
Choice D is incorrect because this test does not screen for ABO incompatibility.
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