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 B
Explanation
A. Point of maximum impulse is shifted to the right. This is not typically associated with coarctation of the aorta, but with other cardiac abnormalities.
B. Weak or absent lower extremity pulses. Coarctation of the aorta causes narrowing of the aorta, which restricts blood flow to the lower body, leading to diminished pulses in the lower extremities.
C. Apical pulse is greater than radial pulse. This finding is not specifically related to coarctation of the aorta.
D. Systolic murmur at the left sternal border. While murmurs may be present, coarctation typically causes a murmur best heard in the back or left infraclavicular area.
Correct Answer is C
Explanation
A. Umbilical cord compression. This typically results in variable decelerations, not late decelerations.
B. Fetal head compression. This is usually associated with early decelerations.
C. Uteroplacental insufficiency. Late decelerations occur after the peak of contractions and are indicative of insufficient blood flow and oxygen to the fetus, suggesting a problem with the placenta's ability to provide adequate oxygen.
D. Maternal bradycardia. Maternal bradycardia does not cause fetal decelerations.
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