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 B
Explanation
The nurse observes Brittny during meal times and for 2 hours after eating to monitor for purging behaviors.
Choice A is incorrect because building a trusting relationship with the patient is important but not the primary reason for observing the patient during meal times and for 2 hours after eating.
Choice C is incorrect because teaching about nutrition is important but not the primary reason for observing the patient during meal times and for 2 hours after eating.
Choice D is incorrect because taking a break with the patient is not the primary reason for observing the patient during meal times and for 2 hours after eating.
Correct Answer is D
Explanation
In patients with Duchenne muscular dystrophy (DMD), creatine kinase levels are often increased to levels that are 50-100 times the reference range.
Choice A is incorrect because lactate dehydrogenase is not typically elevated in DMD.
Choice B is incorrect because C-reactive protein is not typically elevated in DMD.
Choice C is incorrect because the erythrocyte sedimentation rate is not typically elevated in DMD.
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