Identify the trimester when each fetal development finding occurs. Note: Each category must have at least 1 response option selected.
Gender can be determined
Surfactant production
Sucking occurs
Fetus has a heartbeat
Fetal respiratory movements begin
Increase in body fat
The Correct Answer is {"A":{"answers":"B"},"B":{"answers":"C"},"C":{"answers":"C"},"D":{"answers":"A"},"E":{"answers":"C"},"F":{"answers":"C"}}
1st Trimester (Conception-13 weeks)
- Fetus has a heartbeat: The fetal heartbeat can typically be detected around 6 weeks gestation using ultrasound, marking the beginning of cardiac development in the first trimester.
2nd Trimester (14-26 weeks)
- Gender can be determined: Gender determination through ultrasound is generally possible around the 18-20 week mark in the second trimester when fetal genitalia are more distinguishable.
3rd Trimester (27-40 weeks)
- Surfactant production: Surfactant production by the fetal lungs begins in the third trimester, usually around 24-28 weeks, but continues to increase throughout the remainder of pregnancy.
- Sucking occurs: Fetal sucking movements start to develop around the 28th week and become more coordinated as the third trimester progresses.
- Fetal respiratory movements begin: Fetal respiratory movements, where the fetus practices breathing by moving the diaphragm, begin in the third trimester to prepare for life outside the womb.
- Increase in body fat: The fetus begins to accumulate more body fat in the third trimester, which helps with thermoregulation and provides energy reserves for birth and early postnatal life.
|
Finding |
1st Trimester Conception-13 weeks
|
2nd Trimester 14-26 weeks
|
3rd Trimester 27-40 weeks
|
|
|
|
|
|
|
Gender can be determined |
☐ |
☒ |
☐ |
|
Surfactant production |
☐ |
☐ |
☒ |
|
Sucking occurs |
☐ |
☐ |
☒ |
|
Fetus has a heartbeat |
☒ |
☐ |
|
|
Fetal respiratory movements begin |
☐ |
☐ |
☒ |
|
Increase in body fat |
☐ |
☐ |
☐ |
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C","E"]
Explanation
A. Offer the newborn a pacifier. This can help soothe the newborn and provide comfort, as infants exposed to opioids in utero often exhibit increased need for sucking.
B. Observe the newborn in a well-lit nursery. This is not appropriate as bright lights can overstimulate and distress the newborn.
C. Maintain a low stimulation environment. This helps reduce stress and irritability in newborns undergoing withdrawal, who can be hypersensitive to stimuli.
D. Administer oral glucose for comfort. Glucose is not typically used for comfort in NAS management; comforting measures like swaddling and pacifiers are preferred.
E. Swaddle the newborn tightly. Tight swaddling can provide a sense of security and help manage symptoms of neonatal abstinence syndrome (NAS) by reducing irritability and promoting sleep.
F. Feed the infant half-strength formula. Infants with NAS usually require regular, full-strength formula to meet nutritional needs unless otherwise indicated by specific feeding issues.
Correct Answer is B
Explanation
A. Hypoplastic heart syndrome: Characterized by underdevelopment of the left side of the heart, not mixing of blood.
B. Atrioventricular canal defect: An atrioventricular canal defect allows oxygenated and deoxygenated blood to mix due to the presence of a common atrioventricular valve and defects in the atrial and ventricular septa. This defect results in a mixture of oxygenated and deoxygenated blood, which can cause varying levels of oxygenation in the blood delivered to the body.
C. Tetralogy of Fallot: Involves a ventricular septal defect leading to right-to-left shunting, but not a direct mixing of oxygenated and deoxygenated blood.
D. Coarctation of the aorta: Involves narrowing of the aorta, not mixing of oxygenated and deoxygenated blood.
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