A nurse is answering Questions about labor and delivery to a client.The client is concerned that she will need a blood transfusion due to all the blood loss during the delivery.The nurse explains that blood volume increases during pregnancy that will offset the loss.Which of the following is the correct percentage of increased blood volume during pregnancy that the nurse should explain to the client?
25%-35%.
10%-20%.
60%-70%.
40%-50%.
The Correct Answer is D
Choice A rationale
A 25%-35% increase in blood volume is lower than the actual increase observed during pregnancy. This choice is incorrect.
Choice B rationale
A 10%-20% increase in blood volume is significantly lower than the actual increase observed during pregnancy. This choice is incorrect.
Choice C rationale
A 60%-70% increase in blood volume is higher than the actual increase observed during pregnancy. This choice is incorrect.
Choice D rationale
The correct percentage of increased blood volume during pregnancy is 40%-50%. This increase helps accommodate the growing fetus and placenta, and prepares the body for the blood loss that occurs during delivery.
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Correct Answer is C
Explanation
Choice A rationale
Heartburn and nausea are common symptoms during pregnancy and are not typically considered warning signs that require immediate medical attention.
Choice B rationale
Amenorrhea, or the absence of menstruation, is a normal sign of pregnancy and does not indicate a complication that needs immediate reporting.
Choice C rationale
Abdominal cramping can be a sign of a serious condition such as ectopic pregnancy or miscarriage, and it is important for the client to report this symptom immediately.
Choice D rationale
Urinary frequency is a common symptom during pregnancy due to hormonal changes and the growing uterus pressing on the bladder. It is not typically a warning sign that requires immediate medical attention.
Correct Answer is C
Explanation
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.