After teaching a pregnant woman about the hormones produced by the placenta, the nurse determines that the teaching was successful when the woman identifies which hormone produced as being the basis for pregnancy tests?
Human placental lactogen (hPL).
Estrogen (estriol).
Progesterone (progestin).
Human chorionic gonadotropin (hCG).
The Correct Answer is D
A. Human placental lactogen (hPL) is a hormone produced by the placenta that helps regulate the metabolism of the mother and fetus, but it is not used as the basis for pregnancy tests. It plays a role in modulating the metabolic state of the mother during pregnancy to facilitate the energy supply of the fetus.
B. Estrogen (estriol) is another hormone produced by the placenta, which is important for maintaining pregnancy and preparing the body for childbirth. However, it is not the hormone detected by pregnancy tests. Estriol levels increase significantly during pregnancy but are not used as a marker for pregnancy tests.
C. Progesterone (progestin) is crucial for maintaining the uterine lining and supporting early pregnancy. While it is essential for a successful pregnancy, it is not the hormone that pregnancy tests detect. Progesterone helps prevent uterine contractions and supports the endometrium.
D. Human chorionic gonadotropin (hCG) is the hormone detected by pregnancy tests. It is produced by the placenta shortly after the embryo attaches to the uterine lining. The presence of hCG in the blood or urine is a reliable indicator of pregnancy, which is why it is the basis for pregnancy tests.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason:
If the client reports frequent uterine contractions , it is not indicative of a distended bladder. Postpartum uterine contractions are normal and necessary to help the uterus return to its pre-pregnancy size.
Choice B reason:
The fundus (the top portion of the uterus being palpable to the right of the midline suggests a distended bladder. A full bladder can displace the uterus, causing the fundus to deviate from the midline.
Choice C reason:
Having less than 2.5 cm of rubra lochia on a perineal pad is related to the amount of vaginal discharge after birth and does not provide information about bladder distention.
Choice D reason:
The client's report of increased thirst may indicate dehydration or the body's response to fluid loss during childbirth but is not directly related to bladder distention.
Correct Answer is C
Explanation
Choice A reason:
The cord is still pulsating. This is not the first thing a nurse must ensure when the head comes out because the cord normally pulsates until the placenta is delivered. The pulsation indicates that the cord is still functioning and transferring blood and oxygen between the baby and the placenta. However, this does not mean that the cord is free from any complications that could endanger the baby's life, such as a nuchal cord (a cord wrapped around the neck) or a prolapsed cord (a cord that slips out before the baby). • Choice B reason:
The cord is intact. This is not the first thing a nurse must ensure when the head comes out because the cord is usually intact until it is clamped and cut after the delivery of the baby. The cord can be ruptured by excessive traction or twisting, which can cause bleeding and shock in the baby. However, this is a rare occurrence and does not pose an immediate threat to the baby's life as long as the cord is still attached to the placenta. • Choice C reason:
No part of the cord is encircling the baby's neck. This is the correct answer because a nuchal cord can cause compression of the cord and reduce blood flow and oxygen to the baby, leading to fetal distress, hypoxia, and brain damage. A nuchal cord occurs in about 10 to 30 percent of deliveries and can be detected by feeling for a loop of cord around the neck as the head emerges. If a nuchal cord is present, it should be gently slipped over the head or clamped and cut before delivery of the shoulders. • Choice D reason:
The cord is still attached to the placenta. This is not the first thing a nurse must ensure when the head comes out because the cord is always attached to the placenta until it separates from the uterine wall and is expelled after the delivery of the baby. The placenta provides nourishment and oxygen to the baby through the cord. However, this does not mean that the cord is free from any complications that could endanger the baby's life, such as a nuchal cord or a prolapsed cord.
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