A nurse is discussing fetal oxygenation during labor of a client with the RN. As the client progresses through the first stage of labor, which of the following client physiologic adaptations should the nurse identify as promoting fetal oxygenation?

Elevated client blood pressure during contractions

Decrease in client blood volume

Increased client cardiac output

Client bradypnea

Answer and Explanation

The Correct Answer is C

A. Elevated client blood pressure during contractions – Incorrect; high BP can reduce uteroplacental circulation, affecting fetal oxygenation.

B. Decrease in client blood volume – Incorrect; a drop in blood volume would compromise oxygen delivery.

C. Increased client cardiac output – Correct; cardiac output increases during labor to enhance blood flow to the placenta, improving fetal oxygenation.

D. Client bradypnea – Incorrect; slow breathing (bradypnea) can lead to hypoxia, reducing fetal oxygen supply.

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Correct Answer is B

Explanation

A. Second stage, active phase – Incorrect; the second stage begins at 10 cm dilation, not 7 cm.
B. First stage, active phase – Correct; the active phase of the first stage occurs from 6-10 cm dilation and includes increased discomfort and pressure.
C. First stage, latent phase – Incorrect; the latent phase occurs 0-5 cm dilation, before active labor.
D. Second stage, latent phase – Incorrect; the second stage starts at 10 cm when pushing begins.

A. Hormonal imbalances B. Chemicals C. Environmental D. Emotional stress E. Infections F. Physical trauma

Correct Answer is ["B","C","E"]

Explanation

A. Hormonal imbalances – Incorrect; while maternal hormones can impact fetal growth, they are not classified as teratogens.

B. Chemicals – Correct; drugs, alcohol, and toxins (e.g., thalidomide, lead, mercury) can cause birth defects.

C. Environmental – Correct; radiation and pollutants can affect fetal development.

D. Emotional stress – Incorrect; while stress affects pregnancy outcomes, it is not classified as a teratogen.

E. Infections – Correct; infections such as rubella, toxoplasmosis, and syphilis can cause severe congenital abnormalities.

F. Physical trauma – Incorrect; trauma can harm the fetus but is not a teratogen.

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A nurse is discussing fetal oxygenation during labor of a client with the RN. As the client progresses through the first stage of labor, which of the following client physiologic adaptations should the nurse identify as promoting fetal oxygenation?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

In which stage and phase of labor is the client who is at 7 cm of cervical dilation and 100% effacement, with the fetus at 1 station and intact amniotic membranes, and reporting the urge to push?

Correct Answer is B

Explanation

Developing organs and body systems are highly susceptible to teratogens, which can cause major abnormalities. These teratogens usually fall into one of three categories: (Select all that apply.)

Correct Answer is ["B","C","E"]

Explanation

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