The nurse is educating a class of expectant parents about fetal development. What is considered fetal age of viability?
8
24
20
14
The Correct Answer is C
A. At 8 weeks, the embryo is transitioning into the fetal stage of development and is not viable outside the womb. Organs are still in the early stages of formation.
B. While some sources may consider 24 weeks the age of "reasonable viability" with intensive medical support, many medical guidelines recognize viability beginning as early as 20 weeks under optimal conditions.
C. The age of 20 weeks is often cited as the lower threshold of fetal viability due to improved neonatal care, although survival rates improve significantly after this point.
D. At 14 weeks, the fetus is in the second trimester, but it is far too underdeveloped for survival outside the womb.
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Related Questions
Correct Answer is A
Explanation
A. The gynecoid pelvis is considered the most favorable for vaginal delivery due to its rounded shape, wide pelvic inlet, and spacious dimensions, which facilitate the passage of the fetal head.
B. The platypelloid pelvis is flat and wide, often posing challenges for vaginal delivery due to its narrow anteroposterior diameter.
C. The android pelvis has a heart-shaped inlet, making it less favorable for vaginal delivery as it can cause difficulty in fetal descent.
D. The anthropoid pelvis has an oval shape and is more favorable for vaginal delivery than android or platypelloid pelves, but it is still less optimal compared to the gynecoid pelvis.
Correct Answer is C
Explanation
A. It is true that the child’s sex can often be confirmed later in pregnancy, but at 8 weeks, it is typically too early to definitively determine the sex with an ultrasound.
B. At 8 weeks, it is usually not possible to determine the baby’s sex with ultrasound. The external genitalia are not fully developed at this stage.
C. No, the sex organs have not yet started to develop. This is the correct answer. The differentiation of the sex organs begins during the early stages of pregnancy, but they are not visible on ultrasound at 8 weeks.
D. The external genitalia start to become distinguishable a little later in pregnancy, but not as early as the 10th week, making this answer less accurate.
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