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A nurse is caring for a client who is at 39 weeks of gestation and is in active labor. The nurse locates the fetal heart tones above the client’s umbilicus at midline. The nurse should suspect that the fetus is in which of the following positions?

A.

Breech.

B.

Transverse.

C.

Cephalic.

D.

Oblique.

Answer and Explanation

The Correct Answer is A

Choice A rationale

 

Breech presentation means the fetus’s buttocks or feet are positioned to be delivered first. Fetal heart tones are often heard above the umbilicus in this position.

 

Choice B rationale

 

Transverse lie means the fetus is lying horizontally in the uterus. Fetal heart tones would typically be heard at the sides of the abdomen.

 

Choice C rationale

 

Cephalic presentation means the fetus’s head is positioned to be delivered first. Fetal heart tones are usually heard below the umbilicus in this position.

 

Choice D rationale

 

Oblique lie means the fetus is positioned diagonally in the uterus. Fetal heart tones can be variable depending on the exact position.


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View Related questions

Correct Answer is A

Explanation

Choice A rationale

Amniocentesis is a diagnostic test that involves extracting a small amount of amniotic fluid from the uterus to test for chromosomal abnormalities and genetic disorders. It is typically performed between 15 and 20 weeks of pregnancy. The fluid contains fetal cells and various chemicals produced by the baby, which can be analyzed to detect conditions such as Down syndrome, trisomy 18, and neural tube defects. This test is highly accurate and is often recommended when screening tests like the MSAFP indicate a potential issue.

Choice B rationale

A Nonstress Test (NST) is a non-invasive test that measures the fetal heart rate in response to its movements. It is used to assess fetal well-being, particularly in the third trimester, but it does not provide information about chromosomal abnormalities. The NST is typically used to monitor high-risk pregnancies and to ensure that the fetus is receiving enough oxygen.

Choice C rationale

A Biophysical Profile (BPP) combines an ultrasound with a Nonstress Test to evaluate the fetus’s health. It assesses fetal breathing movements, body movements, muscle tone, amniotic fluid volume, and heart rate reactivity. While it provides a comprehensive assessment of fetal well-being, it does not specifically diagnose chromosomal abnormalities. The BPP is often used in the third trimester to monitor high-risk pregnancies.

Choice D rationale

Chorionic Villus Sampling (CVS) is another diagnostic test that can detect chromosomal abnormalities and genetic disorders. It involves taking a small sample of placental tissue (chorionic villi) for analysis. CVS is typically performed between 10 and 13 weeks of pregnancy, earlier than amniocentesis. While it provides similar diagnostic information, it is not the test of choice following an abnormal MSAFP result, which is usually conducted later in pregnancy.

Correct Answer is A

Explanation

Choice A rationale

The “Passenger” refers to the fetus and its position, size, and presentation. In this case, the fetus has an estimated weight of 9 lbs and is in the left occiput posterior (LOP) position. These factors can complicate labor by making it more difficult for the fetus to navigate through the birth canal, potentially leading to prolonged labor and increased risk of interventions.

Choice B rationale

The “Passage” refers to the birth canal, including the pelvis and soft tissues. While the passage is an important factor in labor, the primary concern in this scenario is the size and position of the fetus, which falls under the “Passenger” category.

Choice C rationale

The “Powers” refer to the strength and frequency of uterine contractions. Although the patient is having contractions every 3 minutes, the main concern here is the fetal size and position, which are more directly related to the "Passenger"4.

Choice D rationale

The “Psyche” refers to the psychological state of the mother, including her stress levels and emotional well-being. While important, the primary concern in this scenario is the physical factors related to the fetus, which are categorized under the "Passenger"4.

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