Congenital disorders refer to conditions that are present at birth.
These disorders may be inherited and caused by environmental factors or maternal malnutrition.
Toxic exposures have the greatest effect on development between 15 and 60 days of gestation.
For the nurse to be able to conduct a complete assessment of the newly pregnant patient, she should understand the significance of exposure to known human teratogens.
These include (Select all that apply.)
Drugs.
Infections.
Radiation.
Maternal genetic conditions.
Correct Answer : A,B,C
Choice A rationale
Drugs, such as thalidomide and isotretinoin, are known teratogens that can cause congenital anomalies by interfering with the normal development of the embryo or fetus during critical periods.
Choice B rationale
Infections, such as rubella and cytomegalovirus, are known teratogens that can lead to congenital disorders by causing inflammation, cell damage, and disruption of normal fetal development.
Choice C rationale
Radiation exposure, particularly in high doses during critical periods of organogenesis, is a known teratogen that can result in congenital anomalies such as microcephaly, growth restriction, and intellectual disability.
Choice D rationale
Maternal genetic conditions are not considered teratogens. Teratogens are external agents that cause developmental abnormalities, whereas genetic conditions are inherited and involve genetic mutations or chromosomal abnormalities.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Fetal sleep cycles cause temporary decreased variability in FHR, typically lasting 20 minutes or less. FHR baseline remains normal. Normal FHR variability is 6-25 bpm.
Choice B rationale
Head compression during contractions leads to early decelerations in FHR, not decreased variability. Early decelerations are a normal response to pressure on the fetal head.
Choice C rationale
Fetal hypoxemia causes decreased variability but usually persists for longer than 20 minutes. It indicates compromised oxygen supply, requiring immediate intervention.
Choice D rationale
Umbilical cord compression leads to variable decelerations in FHR rather than decreased variability. These decelerations vary in onset, duration, and intensity.
Correct Answer is D
Explanation
Choice A rationale
Placental insufficiency leads to late decelerations due to diminished blood flow, resulting in gradual decreases in fetal heart rate. This differs from the abrupt changes seen with cord compression.
Choice B rationale
Abruption manifests with symptoms such as painful bleeding and uterine tenderness, rather than specific heart rate patterns like those caused by cord compression.
Choice C rationale
Head compression produces early decelerations with a characteristic mirror image of contractions, unlike the abrupt heart rate drops seen with cord compression.
Choice D rationale
Cord compression results in variable decelerations, which are abrupt decreases in fetal heart rate due to intermittent reductions in oxygen supply. This matches the tracing pattern described.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.