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:
Babinski's Reflex is the normal response in infants when the sole of the foot is stroked from the heel to the ball of the foot. The big toe moves upward or toward the top surface of the foot, and the other toes fan out. This reflex is normal in children up to 2 years old, and it disappears as the nervous system matures. It may indicate damage to the central nervous system in older children and adults.
Choice B reason:
Stepping Reflex is the normal response in infants when they are held upright with their feet touching a flat surface. They will lift one foot and then the other, as if they are walking. This reflex is present at birth and lasts for about 2 months. It helps prepare the infant for voluntary walking.
Choice C reason:
Moro Reflex is the normal response in infants when they are startled by a loud noise or a sudden movement. They will extend their arms and legs, open their hands, and then curl up and bring their arms together as if they are hugging themselves. This reflex is present at birth and lasts for about 4 to 6 months. It is thought to be a protective response that helps the infant cling to their caregiver.
Choice D reason:
Plantar Grasp Reflex is the normal response in infants when pressure is applied to the sole of the foot near the toes. The toes will curl down and grasp the stimulus. This reflex is present at birth and lasts for about 9 to 12 months. It is similar to the palmar grasp reflex in the hands, and it helps develop the muscles and nerves in the feet. Some additional sentences are:. If you are interested in learning more about infant development, you can check out some of these links:. • [A guide to newborn reflexes]. • [A video demonstration of newborn reflexes].
Correct Answer is D
Explanation
The correct answer is: d. Persistent fetal bradycardia below 100 bpm.
Choice A: Maternal pulse rate of 100 bpm
A maternal pulse rate of 100 beats per minute (bpm) is slightly elevated but not uncommon during labor due to the physical exertion and stress involved. The normal range for an adult’s resting heart rate is typically between 60 and 100 bpm. While it is important to monitor the maternal pulse, it is not an immediate cause for concern unless accompanied by other symptoms such as hypotension, chest pain, or signs of distress.
Choice B: Maternal blood pressure of 120/70 mm Hg
A maternal blood pressure of 120/70 mm Hg is within the normal range. Normal blood pressure for adults is generally considered to be around 120/80 mm Hg. This reading indicates that the mother is maintaining stable blood pressure during labor, which is a positive sign. Therefore, this does not require immediate reporting to the physician.
Choice C: Decrease in intensity of uterine contractions
A decrease in the intensity of uterine contractions can be concerning as it may indicate ineffective labor, which could prolong the delivery process. However, this is typically managed by adjusting oxytocin levels or other interventions and does not require immediate reporting unless it leads to other complications such as fetal distress.
Choice D: Persistent fetal bradycardia below 100 bpm
Persistent fetal bradycardia below 100 bpm is a significant concern and should be immediately reported to the physician. Normal fetal heart rate ranges from 110 to 160 bpm. Bradycardia, defined as a heart rate below 110 bpm, can indicate fetal distress, hypoxia, or other complications that may require urgent intervention to ensure the safety of the fetus. Persistent bradycardia, especially below 100 bpm, necessitates immediate medical attention to assess and address the underlying cause.
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