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.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is D
Explanation
Choice A rationale
Elevated WBC count is not typically associated with HELLP syndrome. HELLP syndrome involves hemolysis, elevated liver enzymes, and low platelet count.
Choice B rationale
Elevated platelet count is not a feature of HELLP syndrome. In fact, thrombocytopenia (low platelet count) is a hallmark of the condition.
Choice C rationale
Decreased BUN is not a characteristic of HELLP syndrome. The syndrome primarily affects liver function and platelets.
Choice D rationale
Elevated liver enzymes are a key diagnostic feature of HELLP syndrome, reflecting liver dysfunction and damage, which is part of the condition's pathology. .
Correct Answer is A
Explanation
Choice A rationale
Uterine atony is a common complication following polyhydramnios because the excessive amniotic fluid can lead to uterine overdistension, which in turn can cause poor uterine
muscle tone and increased risk of postpartum hemorrhage.
Choice B rationale
Thrombophlebitis is an inflammation of a vein with clot formation, but it is not directly associated with polyhydramnios.
Choice C rationale
Postpartum preeclampsia is high blood pressure and signs of organ damage after delivery, but there is no direct link between polyhydramnios and this condition.
Choice D rationale
Retained placental fragments can lead to postpartum hemorrhage but are not specifically associated with polyhydramnios.