During preconception counseling, the nurse explains that during the first 8 weeks the fetus is most vulnerable to the effects of teratogens.
What is occurring during the first 8 weeks of gestation?
Placenta formation.
Fertilization.
Organogenesis.
Implantation.
The Correct Answer is C
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.
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Correct Answer is ["A","B","E"]
Explanation
Choice A rationale:
Rapid weight gain during pregnancy, especially when accompanied by other symptoms, can be a sign of preeclampsia. This condition is characterized by high blood pressure and often occurs after 20 weeks of gestation. Reporting rapid weight gain is important for early detection and management.
Choice B rationale:
Visual disturbances, such as blurred vision, can be a warning sign of preeclampsia. It indicates potential neurological involvement and requires immediate evaluation to prevent complications for both the mother and the fetus.
Choice C rationale:
Elevated blood pressure readings are a critical sign of preeclampsia, a condition that can lead to serious health complications for both the mother and the baby if left untreated. Reporting elevated blood pressure is essential for early intervention and management.
Choice D rationale:
While the respiratory rate is slightly elevated, it is not as critical an indicator of preeclampsia as the other findings. In this case, the focus should be on more concerning symptoms, such as blood pressure and visual disturbances.
Choice E rationale:
Hyperactive deep tendon reflexes (3+) are a clinical sign of preeclampsia. The absence of clonus is a reassuring sign, but the presence of hyperactive reflexes warrants further evaluation and monitoring.
Choice F rationale:
The fetal heart rate (FHT) of 148/min is within the normal range (110-160/min) and does not indicate an immediate concern that needs to be reported. The nurse should focus on the maternal symptoms that suggest preeclampsia.
Correct Answer is C
Explanation
Choice A rationale
Male condoms are effective in preventing pregnancy and sexually transmitted infections, but their reliability can be compromised by improper use or breakage.
Choice B rationale
Vaginal rings provide hormonal contraception and are effective, but they may be less reliable compared to implants due to potential for incorrect use.
Choice C rationale
Hormonal implants are highly reliable because they provide continuous contraception over an extended period (up to 3-5 years) with minimal user intervention.
Choice D rationale
Oral contraceptives are effective when taken correctly, but their reliability can be reduced by missed doses or incorrect use.