A nurse assesses a newborn's lab values and notes a WBC of 28,000 mm³. What action by the nurse is best?
Document the findings in the infant's chart.
Follow unit protocol to initiate a sepsis workup.
Take a set of vital signs and notify the provider.
Perform a heel stick for a bedside blood glucose reading.
The Correct Answer is B
Choice A rationale
While documenting findings is a crucial nursing responsibility, a white blood cell count of 28,000 mm³ in a newborn is significantly elevated. The normal range for a newborn's WBC count is typically between 9,000 to 30,000 mm³, but a value at the higher end or exceeding this range warrants further investigation to rule out infection or other underlying conditions. Simply documenting without further action could delay necessary interventions.
Choice B rationale
A WBC count of 28,000 mm³ in a newborn raises suspicion for neonatal sepsis, a serious bloodstream infection. Unit protocols for a sepsis workup typically involve obtaining blood cultures, a complete blood count with differential, and potentially a lumbar puncture and chest X-ray to identify the source and extent of infection. Prompt initiation of these measures is critical for timely diagnosis and treatment, improving the newborn's prognosis.
Choice C rationale
Taking vital signs is a standard nursing assessment, but in the presence of an abnormal lab value suggestive of a serious condition like sepsis, it is insufficient as the sole action. While changes in vital signs can indicate infection, they may not be present in the early stages. Notifying the provider is necessary, but initiating a sepsis workup concurrently based on unit protocol allows for quicker diagnostic evaluation.
Choice D rationale
A heel stick for a bedside blood glucose reading is indicated for assessing hypoglycemia, a common concern in newborns, particularly those at risk. However, it does not directly address the significantly elevated WBC count. While infection can sometimes affect blood glucose levels, this test would not provide information about the potential underlying cause of the leukocytosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Limiting the newborn's intake of milk is contraindicated in the treatment of hyperbilirubinemia. Adequate hydration and frequent feedings are essential to promote bilirubin excretion through stool and urine. Decreased intake can exacerbate dehydration and worsen jaundice. Normal feeding frequency for newborns is typically every 2-3 hours.
Choice B rationale
Feeding the newborn every six hours is not an appropriate intervention for a jaundiced infant receiving phototherapy. Frequent feedings, typically every 2-3 hours, are necessary to promote bilirubin excretion. Prolonged intervals between feedings can lead to dehydration and hinder the effectiveness of phototherapy.
Choice C rationale
Turning the infant every two hours is a crucial nursing intervention during phototherapy. This ensures that all body surfaces are exposed to the ultraviolet light, maximizing the breakdown of bilirubin in the skin. Consistent exposure of all areas helps to lower bilirubin levels more effectively.
Choice D rationale
Applying an oil-based lotion to the newborn's skin during phototherapy is contraindicated. Oil-based lotions can create a barrier on the skin, reducing the penetration and effectiveness of the ultraviolet light. Only water-based lotions, if necessary, should be used sparingly and with caution, as some may absorb UV light.
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"A"}
Explanation
The nurse should monitor the client’s temperature due to the risk of chorioamnionitis.
Rationale for correct answers
Temperature monitoring is crucial for detecting chorioamnionitis, an infection of the amniotic sac, which is a major risk following preterm premature rupture of membranes (PPROM). PPROM increases susceptibility to ascending bacterial infection, leading to inflammation. Fever (>38°C or 100.4°F) is a primary diagnostic criterion.
Chorioamnionitis presents with maternal fever, fetal tachycardia (>160/min), uterine tenderness, and foul-smelling amniotic fluid. The client's normal temperature now (36.7°C) requires ongoing monitoring, as infection could develop rapidly.
Rationale for incorrect Response 1 options
- Magnesium levels: Magnesium sulfate is used for seizure prophylaxis in eclampsia or for neuroprotection in preterm labor. This client has no signs of either condition.
- Fundal height: Measurement assesses fetal growth and amniotic fluid levels; it is not a direct indicator of infection risk.
- Clotting factors: No evidence of coagulopathy or bleeding abnormalities; coagulation profile is normal.
Rationale for incorrect Response 2 options
- Concealed hemorrhage: No signs of placental abruption (painful bleeding, rigid abdomen). Normal hemoglobin (12.0 g/dL) supports this.
- Seizures: No hypertensive crisis or neurological symptoms suggestive of eclampsia.
- Disseminated intravascular coagulation (DIC): No abnormal coagulation markers or evidence of excessive bleeding.
Take-home points
• PPROM increases the risk of chorioamnionitis, a serious intrauterine infection. • Fever monitoring is essential, as maternal fever is an early indicator of infection. • Antibiotics are given prophylactically to reduce chorioamnionitis risk in PPROM. • Differentiation from placental abruption, eclampsia, and DIC is based on clinical and laboratory findings.
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