A client is concerned about needing a blood transfusion after delivery due to the blood loss in delivery. The nurse explains that blood volume increases during pregnancy. Which of the following is the correct percentage of increased blood volume during pregnancy that the nurse should explain to the client?
10% - 15%.
20% - 30%.
40% - 50%.
65% - 75%. .
The Correct Answer is C
Choice A rationale
A 10% to 15% increase in blood volume during pregnancy is too low compared to the average physiological changes that occur.
Choice B rationale
A 20% to 30% increase in blood volume is also below the expected range of increase during pregnancy.
Choice C rationale
Blood volume typically increases by 40% to 50% during pregnancy. This significant increase supports the demands of the growing fetus and placenta and prepares the mother's body for the blood loss that occurs during delivery.
Choice D rationale
A 65% to 75% increase is an overestimate. Such an extensive increase would be abnormal and is not typical in healthy pregnancies.
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View Related questions
Correct Answer is A
Explanation
Choice A rationale
Betamethasone is a corticosteroid that accelerates fetal lung maturity by increasing the production of surfactant, which reduces respiratory distress syndrome in preterm infants.
Choice B rationale
While betamethasone can cause transient increases in fetal heart rate, its primary purpose is not to increase fetal heart rate. Its role is in enhancing lung maturity.
Choice C rationale
Betamethasone does not directly increase amniotic fluid levels. Its main function is in the maturation of fetal lungs.
Choice D rationale
Betamethasone is not used to stop preterm labor contractions. It is used to accelerate fetal lung development in preterm labor cases.
Correct Answer is C
Explanation
Choice A rationale
Accelerations are increases in the fetal heart rate (FHR) above the baseline, typically in response to fetal movement or uterine contractions. They indicate a healthy, well-oxygenated
fetus and are not consistent with the described pattern of decelerations.
Choice B rationale
Late decelerations are characterized by a gradual decrease in FHR that begins after the contraction has started, with the lowest point of the deceleration (nadir) occurring after the
peak of the contraction. They are associated with uteroplacental insufficiency and fetal hypoxia, which is not described in the scenario.
Choice C rationale
Early decelerations are a gradual decrease in FHR that mirrors the contraction, starting with the contraction and returning to baseline as the contraction ends. The nadir of the
deceleration occurs at the peak of the contraction, which fits the pattern described.
Choice D rationale
Variable decelerations are abrupt decreases in FHR that can occur at any time during the contraction cycle, usually due to umbilical cord compression. They are not uniform in
relation to contractions and can vary in duration, depth, and timing, unlike the described pattern.