Which of the following statements accurately describes a characteristic of the newborn immune system?
Newborns are born with fully developed immune responses capable of independently fighting infections from birth.
Newborns have a mature gut microbiome that supports their immune system immediately after birth.
Newborns rely solely on their innate immune system without any contribution from maternal antibodies.
Newborns receive passive immunity through the placenta and colostrum, but their own immune system is not fully functional until several months of age.
The Correct Answer is D
Choice A rationale
Newborns are not born with fully developed immune responses. Their immune system is immature and continues to develop after birth. They rely on maternal antibodies for initial protection.
Choice B rationale
Newborns do not have a mature gut microbiome immediately after birth. The gut microbiome develops over time and is influenced by factors such as breastfeeding and exposure to the environment.
Choice C rationale
Newborns do not rely solely on their innate immune system. They receive passive immunity from maternal antibodies transferred through the placenta and colostrum, which provides initial protection against infections.
Choice D rationale
Newborns receive passive immunity through the placenta and colostrum, but their own immune system is not fully functional until several months of age. This passive immunity helps protect them from infections during the early months of life.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is []
Explanation
Hyperbilirubinemia
- Symptoms: The neonate does show signs of jaundice (yellowish skin), which is a symptom of hyperbilirubinemia. However, the primary concern here is thelow blood glucose level (30 mg/dL), which is more immediately life-threatening and needs urgent attention.
- Diagnostic Results: The total serum bilirubin level is 5 mg/dL, which is elevated but not critically high. Hyperbilirubinemia might be a secondary concern, but the immediate symptoms and diagnostic results point more towards hypoglycemia.
Neonatal Abstinence Syndrome (NAS)
- Symptoms: NAS typically occurs in newborns exposed to addictive substances in utero, leading to withdrawal symptoms after birth. Common symptoms include irritability, high-pitched crying, tremors, and feeding difficulties.
- History: There is no mention of maternal substance use or withdrawal symptoms like frequent yawning or irritability. The jitteriness and poor feeding could overlap with NAS, but the history of gestational diabetes and the low blood glucose level make hypoglycemia a more likely diagnosis.
Summary
- Hypoglycemia: The neonate’s symptoms (jitteriness, lethargy, poor feeding) and the critically low blood glucose level (30 mg/dL) strongly indicate hypoglycemia. This condition is common in infants of diabetic mothers and large-for-gestational-age infants.
Correct Answer is ["A","D","E","F"]
Explanation
Choice A rationale
Bottles can be put in the dishwasher, boiled, or cleaned with hot soapy water to ensure they are thoroughly sanitized and safe for the infant.
Choice B rationale
Holding the baby in a supine position during feedings is incorrect because it increases the risk of aspiration. The baby should be held in a semi-upright position.
Choice C rationale
Only burping the baby after they have finished the entire feeding is incorrect because it can lead to discomfort and gas buildup. The baby should be burped during and after feedings.
Choice D rationale
Always holding the bottle while feeding and not propping the bottle is correct as it prevents choking and ensures the baby is feeding safely.
Choice E rationale
Keeping the nipple full of formula throughout the feeding is correct as it prevents the baby from swallowing air, which can cause gas and discomfort.
Choice F rationale
Prepared formula can be kept in the refrigerator for 48 hours, ensuring it remains safe and free from bacterial growth.
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