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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?

A.

10% - 15%.

B.

20% - 30%.

C.

40% - 50%.

D.

65% - 75%. .

Answer and Explanation

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 B

Explanation

Choice A rationale

The fetal heartbeat cannot typically be heard via Doppler as early as 4 weeks of pregnancy. At this stage, the heart is still developing, and it is too soon for external detection with a Doppler device.

Choice B rationale

The fetal heartbeat is generally detectable by an external Doppler device around 10-12 weeks of pregnancy. This is the period when the heartbeat is strong enough to be picked up by the device.

Choice C rationale

Feeling the baby move, known as "quickening," typically occurs around 18-24 weeks of pregnancy, not 6 weeks. This sensation is different from hearing the heartbeat.

Choice D rationale

While the heart begins to form around week 5, it is not detectable by Doppler at 6 weeks. The technology does not have the sensitivity to detect such an early heartbeat externally.

Correct Answer is D

Explanation

Choice A rationale

A family history of breast cancer, particularly in a close relative like a sister, is a significant risk factor for breast cancer.

Choice B rationale

Exposure to radiation, particularly in the chest area, increases the risk of developing breast cancer.

Choice C rationale

Current use of oral contraceptives can slightly increase the risk of breast cancer, though the risk diminishes after stopping the pills.

Choice D rationale

Age less than 25 years is not a risk factor for breast cancer; risk increases with age.

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