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 D
Explanation
The correct answer is choice D: To prevent her from having convulsions.Magnesium sulfate is a mineral that reduces seizure risks in women with preeclampsia, a condition of high blood pressure and protein in the urine during pregnancy.Magnesium sulfate can lower the cerebral perfusion pressure and prevent convulsions.However, magnesium sulfate does not affect the neonatal outcomes and can cause side effects such as respiratory depression.
Choice A is wrong because magnesium sulfate does not decrease blood pressure.It is used along with medications that help reduce blood pressure.
Choice B is wrong because magnesium sulfate does not decrease tidal volume.It can cause respiratory depression if the serum level is too high.
Choice C is wrong because magnesium sulfate does not prevent dehydration.It can cause fluid retention and pulmonary edema if given in excess.
Correct Answer is A
Explanation
The correct answer is choice A. “Your labor may slow down if you receive an epidural now.” An epidural is a type of regional anesthesia that blocks pain in a specific area of the body.
It can be used to reduce pain during labor and delivery.
However, an epidural can also have some side effects, such as lowering blood pressure, causing fever, and slowing down labor progress.
Therefore, it is usually recommended to wait until the cervix is at least 4 to 5 cm dilated and the contractions are strong and regular before receiving an epidural.
Choice B is wrong because there is no fixed rule about how dilated the cervix needs to be before receiving an epidural.
Some women may receive an epidural earlier or later than others, depending on their pain level, medical history, and preferences.
Choice C is wrong because catheterization is not a prerequisite for receiving an epidural.
Catheterization is the insertion of a tube into the bladder to drain urine.
It may be done after receiving an epidural because the anesthesia can affect the ability to urinate.
However, it is not required before receiving an epidural.
Choice D is wrong because the station of the baby does not determine when a woman can have an epidural.
The station of the baby refers to how far the baby has descended into the pelvis.
It is measured in relation to the ischial spines, which are bony landmarks in the pelvis.
A positive station means that the baby is below the spines, while a negative station means that the baby is above the spines.
Zero station means that the baby is at the level of the spines.
The station of the baby does not affect the administration of an epidural, as long as there are no other complications or contraindications.
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