A nurse is caring for a client who is 39 weeks gestation and having contractions.
Which of the following should the nurse recognize as a sign of true labor?
Uterine contractions that cause variable decelerations.
Regular uterine contractions that cause cervical change.
Station of the presenting part.
Rupture of the membranes resulting in uterine contractions.
The Correct Answer is B
Choice A rationale
Uterine contractions that cause variable decelerations are not specific to true labor. Variable decelerations are typically associated with umbilical cord compression and can occur during both true and false labor.
Choice B rationale
Regular uterine contractions that cause cervical change are a definitive sign of true labor. True labor is characterized by contractions that become progressively stronger, more frequent, and more regular, leading to cervical dilation and effacement. This process indicates that the body is preparing for childbirth.
Choice C rationale
The station of the presenting part refers to the position of the fetus in relation to the ischial spines of the pelvis. While it is an important aspect of labor progression, it is not a definitive sign of true labor.
Choice D rationale
Rupture of the membranes, or the breaking of the water, can occur before true labor begins. While it often indicates that labor is imminent, it is not a definitive sign of true labor on its own.
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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 B
Explanation
Choice A rationale
Providing ice chips or mouth swabs can help keep the client comfortable and hydrated, but it is not the priority action when administering pain medication.
Choice B rationale
Assessing and documenting maternal vital signs and fetal heart rate after administering Fentanyl is crucial. This ensures that the medication is not causing any adverse effects on the mother or fetus and that both are stable.
Choice C rationale
Dimming the lights and providing a quiet atmosphere can help create a calming environment, but it is not the priority action when administering pain medication.
Choice D rationale
Assisting the patient with coping skills, including breathing techniques, is important for managing pain, but it is not the priority action when administering pain medication.