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 C
Explanation
A complete fracture is when the bone breaks into two or more separate pieces.
This is in contrast to an incomplete fracture, where the bone is only partially broken.
A spiral fracture is a type of complete fracture that occurs when a long bone is twisted with force.
A greenstick fracture is a type of incomplete fracture that occurs when a bone bends and cracks but does not break completely.
Choice A, Spiral, is incorrect because it refers to a specific type of complete fracture that occurs when a long bone is twisted with force.
Choice B, Incomplete, is incorrect because it refers to a type of fracture where the bone is only partially broken.
Choice D, Greenstick, is incorrect because it refers to a specific type of incomplete fracture that occurs when a bone bends and cracks but does not break completely.
Correct Answer is A
Explanation
This is a variation of the side-lying position, which is recommended for pregnant women in the third trimester to improve blood flow to the uterus and the baby12.
Sleeping on the right side with a pillow under the hip can also help relieve pressure on the inferior vena cava, a large vein that carries blood from the lower body to the heart.
Sleeping on the back can cause lightheadedness and dizziness because of this pressure, as well as increase the risk of stillbirth1.
Choice B.
Without a pillow is incorrect, as this can make sleeping on the side uncomfortable and cause back pain or leg cramps.
Choice C.
with a pillow under her shoulders is incorrect, as this can elevate the upper body and worsen heartburn, a common problem in pregnancy.
Choice D.
with a pillow under both hips is incorrect, as this can make sleeping on the back more likely, which is not advised for pregnant women in the third trimester1.
Therefore, choice A is the best answer.
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