In which clinical situation would the nurse most likely anticipate a fetal bradycardia?
Drug consumed by the mother like cocaine.
Prolonged umbilical cord compression.
Fetal anemia.
Tocolytic treatment using terbutaline.
The Correct Answer is B
Choice A rationale
Cocaine is a stimulant that typically causes fetal tachycardia (an elevated fetal heart rate) due to its sympathomimetic effects, increasing maternal and subsequently fetal heart rate and blood pressure. It does not usually lead to fetal bradycardia.
Choice B rationale
Prolonged umbilical cord compression can lead to fetal bradycardia because it restricts oxygenated blood flow to the fetus. The baroreceptors in the fetus respond to decreased oxygen by slowing the heart rate in an attempt to conserve oxygen and maintain perfusion to vital organs.
Choice C rationale
Fetal anemia, a decrease in red blood cell count, can lead to fetal tachycardia as the heart attempts to compensate for reduced oxygen-carrying capacity by increasing cardiac output. Bradycardia is not a typical initial response to fetal anemia.
Choice D rationale
Terbutaline is a tocolytic medication used to relax the smooth muscle of the uterus and prevent preterm labor. Its side effects often include maternal and fetal tachycardia due to its beta-adrenergic agonist activity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Hypotonic uterine dysfunction typically occurs in the active phase of labor (after 4 cm cervical dilation) and is characterized by weak, infrequent, and ineffective contractions that do not lead to cervical change. The client in the latent phase with slow cervical change is not yet in the active phase.
Choice B rationale
The latent phase of the first stage of labor is characterized by irregular, mild to moderate contractions that cause slow, gradual cervical dilation and effacement. It can be lengthy, especially in primigravidas, and the discomfort can be significant. A cervical dilation of 2 cm with no change in 3 hours in the presence of painful, erratic contractions every 5 to 10 minutes aligns with a normal latent phase.
Choice C rationale
Hypertonic uterine dysfunction usually occurs in the latent phase and is characterized by frequent, uncoordinated, and strong contractions that are ineffective in causing cervical dilation or effacement. While the contractions are painful, they are not described as excessively strong or uncoordinated, and the client is in the expected early stage of labor.
Choice D rationale
Precipitous labor is a very rapid labor and delivery, typically lasting less than 3 hours from the onset of regular contractions to expulsion of the fetus. The client's labor is progressing slowly, with minimal cervical change over 3 hours, which is the opposite of precipitous labor.
Correct Answer is C
Explanation
Choice A rationale
Increasing ambulation is generally encouraged in the postpartum period to prevent complications like thrombophlebitis, but it does not address the potential cause of foul-smelling lochia. Foul odor is a key indicator of infection, and ambulation will not resolve an existing infection.
Choice B rationale
Increasing oral fluids is important for hydration in the postpartum period, but it will not directly address a foul-smelling odor in the lochia. While adequate hydration supports overall healing, it does not treat an infection. A foul odor strongly suggests a localized infectious process in the uterus.
Choice C rationale
Lochia that is red (rubra) is normal in the first few days postpartum. However, a foul-smelling odor is an abnormal finding and a significant indicator of a potential uterine infection, also known as endometritis or puerperal infection. Further assessment and intervention are required to identify and treat the infection.
Choice D rationale
Normal lochia progresses from rubra (red) to serosa (pinkish-brown) to alba (yellowish-white) over several weeks postpartum. Normal lochia should have a fleshy, not foul, odor. A foul smell is an abnormal finding that suggests an infectious process within the uterus and requires prompt attention.
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