A nurse is assessing a client's risk of breast cancer.
Which of the following would not be included in the education about risks?
Client's sister had breast cancer.
History of radiation exposure.
Currently taking oral contraceptives.
Age less than 25 years old.
The Correct Answer is D
Choice A rationale
A family history of breast cancer, particularly in a close relative like a sister, is a significant risk factor for breast cancer.
Choice B rationale
Exposure to radiation, particularly in the chest area, increases the risk of developing breast cancer.
Choice C rationale
Current use of oral contraceptives can slightly increase the risk of breast cancer, though the risk diminishes after stopping the pills.
Choice D rationale
Age less than 25 years is not a risk factor for breast cancer; risk increases with age.
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Correct Answer is C
Explanation
Choice A rationale
Placenta formation begins shortly after implantation, but it continues to develop throughout the first trimester and into the early second trimester, making it less precise to attribute the
first 8 weeks solely to this process.
Choice B rationale
Fertilization occurs within the first week after ovulation, marking the beginning of pregnancy, but it is a singular event that happens prior to the developmental processes vulnerable to teratogens.
Choice C rationale
Organogenesis is the critical period during which the major organs and structures of the fetus form, typically occurring between the third and eighth weeks of gestation. This is the
time when the fetus is most susceptible to the effects of teratogens, which can cause congenital anomalies.
Choice D rationale
Implantation occurs approximately 6-10 days after fertilization, embedding the blastocyst into the uterine lining. While crucial, it is not the primary period when teratogenic effects are
most significant, as this happens during organogenesis.
Correct Answer is B
Explanation
Choice A rationale
Uteroplacental insufficiency typically results in late decelerations, not a sudden drop in fetal heart rate, which is more commonly caused by umbilical cord compression.
Choice B rationale
Umbilical cord compression can cause variable decelerations, which are characterized by a sudden drop in fetal heart rate. This occurs due to the umbilical cord being compressed,
leading to decreased blood flow and oxygen to the fetus.
Choice C rationale
Maternal bradycardia refers to a slow maternal heart rate and does not directly cause changes in the fetal heart rate pattern.
Choice D rationale
Fetal head compression typically causes early decelerations, which are gradual decreases in fetal heart rate that occur with contractions and are usually benign.