On her second postpartum day, the mother of a newborn says, “The doctor says the baby has physiologic jaundice.
Even though it is supposed to be normal, I don’t understand why it occurs.” Which fact regarding physiologic jaundice should form the basis of the nurse’s response?
It is caused by an increase in neonatal metabolism.
It is related to the destruction of fetal red blood cells.
It is caused by an antigen-antibody reaction.
It is related to the immaturity of the reticuloendothelial system.
The Correct Answer is B
Physiologic jaundice is a common condition in newborns that occurs when the baby’s blood contains an excess of bilirubin, a yellow pigment produced during the normal breakdown of red blood cells.In the womb, the mother’s liver removes bilirubin for the baby, but after birth the baby’s own liver must take over this function.Because the baby has more red blood cells than an adult and their liver is still immature, they may not be able to process all the bilirubin and it may build up in their skin and eyes, causing a yellowish appearance.
Choice A is wrong because it is not an increase in neonatal metabolism that causes physiologic jaundice, but rather a decrease in hepatic metabolism of bilirubin.
Choice C is wrong because it describes a different type of jaundice called hemolytic jaundice, which occurs when there is an incompatibility between the blood types of the mother and the baby, leading to an immune reaction that destroys the baby’s red blood cells faster than they can be replaced.
Choice D is wrong because it confuses the reticuloendothelial system with the hepatic system.
The reticuloendothelial system is a network of cells and tissues that are involved in immune responses and phagocytosis (the ingestion of foreign particles or cells).
The hepatic system is the system of organs and structures that are involved in liver functions, such as bile production and detoxification.
Normal ranges for bilirubin levels in newborns are 1 to 12 mg/dL (17 to 205 micromol/L) for total bilirubin and 0.2 to 1.4 mg/dL (3 to 24 micromol/L) for direct bilirubin.
Physiologic jaundice usually peaks at 3 to 5 days after birth and resolves by 2 weeks of age.
It does not require treatment unless the bilirubin levels are very high or rising rapidly, which may indicate a more serious condition or a risk of brain damage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is choice C. Dryness and flaking of the skin on the hands and feet.This is because a newborn with a gestational age of 42 weeks is considered post-mature and has lost the protective vernix caseosa that covers the skin of most newborns.The skin of a post-mature newborn is also more exposed to the amniotic fluid, which can cause it to peel and crack.
Choice A is wrong because sole creases that cover only the anterior one-third of the foot are characteristic of a preterm newborn, not a post-mature one.
Choice B is wrong because vernix caseosa is abundant in preterm newborns and decreases as gestational age increases.A post-mature newborn would have little or no vernix caseosa on the skin.
Choice D is wrong because a large amount of fine, downy hair (lanugo) on the back and shoulders is also typical of a preterm newborn, not a post-mature one.Lanugo usually disappears by 36 weeks of gestation.A post-mature newborn would have little or no lanugo on the body.
Correct Answer is D
Explanation
The correct answer is choice D. Rest on your side as much as possible.This is because resting on the side can improve blood flow to the placenta and lower blood pressure.It can also reduce the risk of supine hypotensive syndrome, which occurs when the weight of the uterus compresses the inferior vena cava and reduces venous return.
Choice A is wrong because spicy foods have no effect on blood pressure or pregnancy outcomes.Choice B is wrong because limiting fluid intake can lead to dehydration and increase blood viscosity, which can worsen hypertension.Choice C is wrong because urinating frequently does not lower blood pressure or prevent complications of pregnancy-induced hypertension.
Pregnancy-induced hypertension (PIH) is a condition that causes high blood pressure during pregnancy.It can lead to serious problems for both the mother and the baby, such as pre-eclampsia, eclampsia, placental abruption, fetal growth restriction, and stillbirth.
Women with PIH should follow their doctor’s advice on medication, diet, exercise, and monitoring.They should also report any symptoms of pre-eclampsia, such as severe headache, blurred vision, abdominal pain, or swelling.
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