Identify the trimester when each fetal development finding occurs.
Select the appropriate trimester for each finding:
Formation of fingers, toes, and facial features
Fetus can hear and respond to external stimuli
Increase in body fat reserves
Brain develops most rapidly during this time
Gender can be determined
The Correct Answer is {"A":{"answers":"A"},"B":{"answers":"B"},"C":{"answers":"C"},"D":{"answers":"C"},"E":{"answers":"B"}}
A. Formation of fingers, toes, and facial features
Correct Trimester: 1st Trimester (Conception – 13 weeks)
Explanation:
By the end of the 1st trimester, organogenesis (organ formation) is largely complete.
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Weeks 7–8: Limb buds appear and begin differentiating into arms and legs.
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Weeks 9–12: Fingers, toes, facial features (eyes, nose, lips, ears) become clearly defined.
This is a critical period for congenital malformations if exposed to teratogens.
B. Fetus can hear and respond to external stimuli
Correct Trimester: 2nd Trimester (14–26 weeks)
Explanation:
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Around 18–20 weeks: The fetus develops the ability to hear sounds.
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External sounds can startle the fetus, and the heartbeat may change in response.
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Mother's voice and music can be recognized at this stage.
C. Increase in body fat reserves
Correct Trimester: 3rd Trimester (27–40 weeks)
Explanation:
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In the final trimester, especially after week 32, fat accumulates under the skin.
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This provides energy and helps with temperature regulation after birth.
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The fetus also gains the most weight during this period.
D. Brain develops most rapidly during this time
Correct Trimester: 3rd Trimester (27–40 weeks)
Explanation:
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Although brain development starts early, the most rapid growth occurs in the third trimester.
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There's a dramatic increase in brain volume, cortical folding, and neural connectivity.
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This trimester is essential for cognitive and motor development.
E. Gender can be determined
Correct Trimester: 2nd Trimester (14–26 weeks)
Explanation:
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By week 18–20, an ultrasound can reliably show external genitalia.
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The sex organs begin forming in the 1st trimester, but become distinct and visible by the 2nd trimester.
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This is when many parents find out the baby's gender via an anatomy scan.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Performing a sterile vaginal exam assesses cervical dilation and effacement, which is essential for labor progression. However, it poses an infection risk after membrane rupture and should follow fetal heart rate evaluation to ensure fetal well-being.
Choice B rationale
Establishing IV access is important for administering fluids or medications. Still, it is not immediately necessary without first assessing the fetal and maternal condition, which dictates further intervention needs.
Choice C rationale
Obtaining the fetal heart rate is the priority after membrane rupture and bloody show. It evaluates fetal oxygenation and well-being, especially with frequent contractions. Tachycardia or decelerations may indicate distress, necessitating immediate intervention.
Choice D rationale
Assessing maternal vital signs provides insight into hemodynamic status but is secondary to immediate fetal monitoring. Fetal heart rate assessment directs urgent management, especially in high-risk scenarios like ruptured membranes and bloody show. .
Correct Answer is C
Explanation
Choice A rationale
A history of pelvic inflammatory disease may result in complications like infertility or chronic pelvic pain but does not specifically indicate endometriosis. Endometriosis involves the ectopic implantation of endometrial tissue, unrelated to infection from PID.
Choice B rationale
An atypical Papanicolaou smear suggests cervical cell abnormalities due to infection, inflammation, or dysplasia, but it does not correlate with endometriosis, which is a distinct gynecological condition involving ectopic endometrial tissue growth.
Choice C rationale
Dysmenorrhea unresponsive to NSAIDs is a defining symptom of endometriosis. This pain results from the inflammatory response and cyclic bleeding of ectopic endometrial tissue, which can cause significant discomfort and impair quality of life.
Choice D rationale
Abdominal bloating several days before menses may be linked to hormonal fluctuations or gastrointestinal issues but is not a primary symptom of endometriosis. While some affected individuals experience bloating, it is not a diagnostic feature like severe, treatment-resistant pain. .
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