A nurse is caring for a client who is in active labor. The nurse notes early decelerations of the FHR on the fetal monitor tracing. The nurse should identify that which of the following conditions causes early decelerations in the FHR?
Fetal hypoxemia.
Cord compression.
Uteroplacental insufficiency.
Head compression.
The Correct Answer is D
Choice A rationale:
Fetal hypoxemia is associated with late decelerations in the fetal heart rate (FHR) tracing. It occurs when the fetus experiences a decreased supply of oxygen, typically due to placental insufficiency or maternal hypotension.
Choice B rationale:
Cord compression can lead to variable decelerations in the FHR tracing. It occurs when the umbilical cord is compressed, restricting blood flow to the fetus temporarily.
Choice C rationale:
Uteroplacental insufficiency causes late decelerations in the FHR tracing. It refers to an inadequate blood flow between the uterus and placenta, resulting in reduced oxygen supply to the fetus.
Choice D rationale:
Head compression is the correct answer for early decelerations in the FHR tracing. It happens during contractions when the fetal head is compressed by the maternal pelvis, leading to a temporary vagal response that slows the heart rate.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
Multiparity, or having given birth to multiple children, is associated with a decreased risk of ovarian cancer, not an increased risk. The protective effect may be due to the repeated ovulatory cycles that occur during pregnancy.
Choice B rationale:
Endometriosis is a condition where endometrial tissue grows outside the uterus. It is associated with an increased risk of ovarian cancer. The exact link is not fully understood, but it is believed that the inflammatory and hormonal changes in endometriosis may contribute to cancer development.
Choice C rationale:
Being under 40 years of age does not increase the risk of ovarian cancer. Advanced age is a known risk factor for ovarian cancer, with the highest incidence occurring in women over 60.
Choice D rationale:
Use of contraceptive medications, particularly oral contraceptives, has been shown to reduce the risk of ovarian cancer. These medications suppress ovulation and decrease the exposure of the ovaries to potential carcinogens.
Correct Answer is B
Explanation
Choice A rationale:
This statement is incorrect. A nonstress test does not involve receiving medication through an
IV. It is a simple and non-invasive test that monitors the baby's heart rate in response to its movements.
Choice B rationale:
This is the correct choice. A nonstress test typically takes about 30 minutes to complete. During the test, the client will have a fetal heart rate monitor placed on her abdomen to measure the baby's heart rate while it is moving.
Choice C rationale:
This statement is incorrect. There is no requirement for the client to fast or restrict food and drink before a nonstress test. The client can eat and drink as usual before the procedure.
Choice D rationale:
This statement is incorrect. A nonstress test is not used to determine if the baby's lungs are mature. Instead, it assesses the baby's heart rate patterns in response to its own movements, which helps evaluate the baby's overall well-being in the third trimester of pregnancy.
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