A nurse is caring for a primigravida who asks about the function of the placenta.The nurse responds correctly when explaining which of the following are functions of the placenta?
Cushions fetus from maternal movement.
Provides thermoregulation.
Metabolic and gas exchange.
Provides a sterile environment.
The Correct Answer is C
Choice A rationale
The placenta does not cushion the fetus from maternal movement. Instead, the amniotic fluid within the amniotic sac provides cushioning and protection to the fetus from external forces and maternal movements.
Choice B rationale
The placenta does not provide thermoregulation. Thermoregulation is primarily managed by the mother’s body. The placenta’s main functions are related to nutrient and gas exchange, hormone production, and waste removal.
Choice C rationale
The placenta is responsible for metabolic and gas exchange. It provides oxygen and nutrients to the fetus while removing waste products from the fetal blood. This exchange occurs through the placental barrier, which separates maternal and fetal blood.
Choice D rationale
The placenta does not provide a sterile environment. The amniotic sac and its fluid help maintain a sterile environment for the fetus. The placenta’s role is more focused on nutrient and gas exchange, hormone production, and waste removal.
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Correct Answer is D
Explanation
Choice A rationale
Calculating the estimated date of delivery (EDD) involves adding 280 days (40 weeks) to the first day of the last menstrual period (LMP). Starting from November 15th, adding 280 days results in an EDD around August 22nd, not July 12th.
Choice B rationale
Using the same calculation method, adding 280 days to November 15th results in an EDD around August 22nd, not August 12th.
Choice C rationale
This choice is close but not accurate. Adding 280 days to November 15th results in an EDD around August 22nd.
Choice D rationale
This is the correct calculation. Adding 280 days to November 15th results in an EDD around August 22nd.
Correct Answer is C
Explanation
Choice A rationale
Changing professions is not necessary solely due to pregnancy. However, it is important to consider the specific risks associated with the current job. In this case, the client works in a hair and nail salon, which may expose her to various chemicals and environmental toxins. These toxins can pose risks to both the mother and the developing fetus. Therefore, the focus should be on minimizing exposure to these hazards rather than changing professions altogether.
Choice B rationale
While it is important to be mindful of weight limits during pregnancy to avoid strain and injury, this is not the primary concern for a client working in a hair and nail salon. The main risk in this scenario is exposure to environmental toxins, which can have more significant implications for the health of the mother and the developing fetus.
Choice C rationale
Exposure to environmental toxins is a significant concern for pregnant women working in hair and nail salons. These environments often contain chemicals such as formaldehyde, toluene, and phthalates, which can be harmful to both the mother and the developing fetus. Educating the client about the risks associated with these toxins and providing guidance on how to minimize exposure is crucial for ensuring a healthy pregnancy.
Choice D rationale
While reducing the number of clients seen in a day may help manage physical strain and fatigue, it does not address the primary concern of exposure to environmental toxins. The focus should be on minimizing contact with harmful chemicals and ensuring a safe working environment for the pregnant client.