The nurse explains to the parents of a 2-day-old newborn that decreased life span of neonatal red blood cells has contributed to which complication?
Hyperbilirubinemia.
Respiratory distress syndrome.
Polycythemia.
Transient tachypnea.
The Correct Answer is A
The correct answer is: a. Hyperbilirubinemia.
Choice A: Hyperbilirubinemia
Reason: Hyperbilirubinemia in newborns is often caused by the increased breakdown of red blood cells, which have a shorter lifespan in neonates. This breakdown produces bilirubin, a yellow pigment that can accumulate in the blood, leading to jaundice. The liver of a newborn is not fully mature and may not be able to process and excrete bilirubin efficiently, resulting in hyperbilirubinemia.
Choice B: Respiratory Distress Syndrome
Reason: Respiratory Distress Syndrome (RDS) is primarily caused by a deficiency of surfactant in the lungs, which is more common in premature infants. It is not directly related to the lifespan of red blood cells. Symptoms include rapid, shallow breathing and a bluish color due to lack of oxygen.
Choice C: Polycythemia
Reason: Polycythemia is characterized by an abnormally high concentration of red blood cells. It is often due to factors like delayed cord clamping or maternal diabetes, rather than the decreased lifespan of red blood cells. Polycythemia can lead to increased blood viscosity and complications such as sluggish blood flow.
Choice D: Transient Tachypnea
Reason: Transient Tachypnea of the Newborn (TTN) is a respiratory condition caused by delayed clearance of fetal lung fluid. It typically resolves within a few days and is not related to the lifespan of red blood cells. Symptoms include rapid breathing and grunting.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason:
10% to 15% of their birth weight. This is incorrect because this range is too high for a normal newborn weight loss. Losing more than 10% of their birth weight may indicate dehydration, inadequate feeding, or other problems. • Choice B reason:
20% of their birth weight. This is incorrect because this percentage is way too high for a normal newborn weight loss. Losing 20% of their birth weight would be a serious sign of illness or malnutrition. • Choice C reason:
15% to 18% of their birth weight. This is incorrect because this range is also too high for a normal newborn weight loss. Losing 15% to 18% of their birth weight would be a cause for concern and require further evaluation. • Choice D reason:
5% to 10% of their birth weight. This is correct because this range is within the normal limits for a newborn weight loss. Newborns lose some weight as a result of insufficient caloric intake, fluid loss, and metabolic adjustments in the first week after birth. They usually regain their birth weight by the second week.
Correct Answer is D
Explanation
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.
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