A nurse is collecting data from a newborn 1 hr after delivery. Which of the following respiratory rates is within the expected reference range for a newborn?
22/min.
100/min.
48/min.
110/min.
The Correct Answer is C
Choice A rationale:
A respiratory rate of 22/min would be abnormally low for a newborn. The expected reference range for newborns is around 30-60 breaths per minute.
Choice B rationale:
A respiratory rate of 100/min would be abnormally high for a newborn. Such a high respiratory rate may indicate respiratory distress or other underlying issues and requires further evaluation.
Choice C rationale:
A respiratory rate of 48/min falls within the expected reference range for a newborn, which is around 30-60 breaths per minute. This rate suggests that the newborn's respiratory system is functioning within the normal range.
Choice D rationale:
A respiratory rate of 110/min would be abnormally high for a newborn. As mentioned earlier, the expected reference range for newborns is around 30-60 breaths per minute, making this rate concerning and necessitating further assessment.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A"]
Explanation
Choice A rationale:
The Moro reflex is a normal finding in newborns, including those born post-term. It is a primitive reflex that should be present and indicates a healthy neurological system.
Choice B rationale:
Vernix, a protective white substance that coats the skin in utero, is typically absent or minimal in post-term newborns due to its decreased production as gestation progresses. Therefore, it would not be expected in a post-term infant.
Choice C rationale:
Lanugo, the fine hair covering a newborn's body, is usually present in greater amounts in preterm infants. By the time a newborn is post-term, lanugo is typically sparse or absent, making it an unlikely finding.
Choice D rationale:
This maneuver assesses the flexibility of the newborn's joints. Post-term infants tend to have reduced flexibility and increased muscle tone, making this maneuver more difficult or restricted in this population.
Correct Answer is C
Explanation
Choice A rationale:
(Incorrect) The newborn with significant bruising from a face presentation is at an increased risk of elevated unconjugated bilirubin levels. Bruising can lead to the breakdown of red blood cells, increasing bilirubin production.
Choice B rationale:
(Incorrect) The premature newborn is at a higher risk of elevated unconjugated bilirubin levels. Premature infants often have an underdeveloped liver, which can lead to reduced bilirubin processing and clearance.
Choice C rationale:
(Correct) The baby born at 41 weeks' gestation is at the lowest risk for elevated unconjugated bilirubin levels. By this stage, the baby's liver is more mature, allowing for efficient processing and clearance of bilirubin.
Choice D rationale:
(Incorrect) The newborn with O+ blood type, born to a mother with O- blood type, is at an increased risk of elevated unconjugated bilirubin levels if the baby's blood type is Rh-positive and the mother's is Rh-negative. This situation can lead to Rh incompatibility and hemolytic disease of the newborn, causing higher bilirubin levels.
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