The nurse notes that a newborn's white blood cell count (WBC) is 15,000. The nurse is aware that:.
This indicates a severe infection.
This is a normal WBC for a newborn.
This is a lab error.
You must call the doctor.
The Correct Answer is B
Choice A rationale:
A white blood cell count of 15,000 does not necessarily indicate a severe infection. In newborns, WBC counts are typically higher than in adults, and they gradually decrease over the first few days after birth. A value of 15,000 falls within the normal range for a newborn and is not indicative of a severe infection.
Choice B rationale:
A white blood cell count of 15,000 is considered a normal range for a newborn. Newborns have higher WBC counts as a natural response to the stress of birth and exposure to the outside environment. The immune system is still developing, and elevated WBC counts are normal during this period.
Choice C rationale:
Assuming there are no other indications of lab error, such as abnormal results in other tests, it would be premature to label the WBC count as a lab error. Additionally, healthcare professionals should always consider the overall clinical picture before assuming a lab error based on a single result.
Choice D rationale:
There is no immediate need to call the doctor based solely on the WBC count of 15,000. Medical decisions should be made in the context of the newborn's overall clinical condition, and a single lab result does not warrant an immediate call to the doctor.
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 A
Explanation
Choice A rationale:
An apical pulse of 130/min in a newborn is within the normal range. The normal heart rate for a newborn is generally between 110 to 160 beats per minute (bpm). As the newborn's heart rate falls within this range, the nurse should document it as an expected finding and continue routine monitoring.
Choice B rationale:
Calling the neonatologist to assess the newborn for an apical pulse of 130/min is not warranted as it is a normal finding. The nurse should only notify the neonatologist if there are abnormal vital signs or concerning clinical signs.
Choice C rationale:
Asking another nurse to verify the heart rate is unnecessary in this scenario. The nurse can independently measure the apical pulse and document the finding as long as it falls within the normal range for newborns.
Choice D rationale:
Preparing the newborn for transport to the Neonatal Intensive Care Unit (NICU) is not indicated for a normal apical pulse rate. Transporting a newborn to the NICU is typically reserved for critical or unstable conditions. In this case, the normal heart rate of 130/min does not warrant NICU transport.
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