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 A
Explanation
Choice A reason:
This is the best response because it shows that the nurse is providing nonpharmacological pain relief measures and supporting the client's coping mechanisms. Breathing and imagery techniques can help the client relax and focus on something other than the pain. Moaning, screaming, and vocalizing are normal and acceptable ways of expressing pain during labor, and the nurse should not try to suppress them.
Choice B reason:
This is not the best response because it does not address the husband's concern or offer any intervention for the client's pain. Asking the client to rate her pain on a scale of 0 to 10 is a subjective assessment tool that may not reflect the true intensity of her pain. Furthermore, it may be difficult for the client to answer this question while she is in the second stage of labor.
Choice C reason:
This is not the best response because it may not be feasible or appropriate to administer more pain medication to the client in the second stage of labor. The obstetrician may not be available to evaluate the client's pain, and increasing the dose of pain medication may have adverse effects on the client and the fetus, such as respiratory depression, hypotension, and decreased uterine contractility.
Choice D reason:
This is not the best response because it does not acknowledge the husband's feelings or provide any comfort or education for him. Reassuring him that his wife will be fine may sound dismissive and insensitive, and offering to stay with her while he takes a walk may imply that he is not needed or wanted in the birthing room. The nurse should involve the husband in the care of his wife and explain to him what is happening and what to expect during labor.
Correct Answer is A
Explanation
Choice A reason:
Uteroplacental insufficiency is a condition where the placenta cannot deliver enough oxygen and nutrients to the fetus. This can cause fetal hypoxia and distress, which can be detected by late decelerations on the fetal heart rate monitor. Late decelerations are defined as a decrease in the fetal heart rate that begins after the peak of the contraction and returns to baseline after the contraction ends. This indicates that the fetus is not tolerating the reduced blood flow during the contractions and needs immediate intervention. • Choice B reason:
Umbilical cord compression is a condition where the umbilical cord is squeezed or twisted, reducing the blood flow and oxygen to the fetus. This can cause variable decelerations on the fetal heart rate monitor. Variable decelerations are defined as a decrease in the fetal heart rate that varies in timing, shape, and duration, and may or may not be associated with contractions. This indicates that the fetus is experiencing intermittent or sustained cord compression and may need repositioning or other interventions. • Choice C reason:
Maternal bradycardia is a condition where the mother's heart rate is slower than normal, usually less than 60 beats per minute. This can cause reduced blood flow and oxygen to the placenta and the fetus, but it does not cause late decelerations on the fetal heart rate monitor. Maternal bradycardia can be caused by various factors, such as medications, hypothermia, hypothyroidism, or vagal stimulation. It may need treatment depending on the cause and severity. • Choice D reason:
Fetal head compression is a condition where the fetal head is pressed against the cervix or the pelvic floor during labor, stimulating the vagus nerve and slowing down the fetal heart rate. This can cause early decelerations on the fetal heart rate monitor. Early decelerations are defined as a decrease in the fetal heart rate that begins with the onset of the contraction and returns to baseline with the end of the contraction. This indicates that the fetus is descending in the birth canal and is usually a normal and benign finding.
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