# A nurse is caring for a newborn who is at risk for hypoglycemia. Which assessment finding would be the most critical indicator requiring immediate intervention? > source: MyMerci (mymerci.kr) > url: https://mymerci.kr/pages/nclex_q.php?qn_id=543315 > language: ko > subject: Maternal Newborn Health ## 문제 A nurse is caring for a newborn who is at risk for hypoglycemia. Which assessment finding would be the most critical indicator requiring immediate intervention? ## 보기 1. Jitteriness and tremors with a blood glucose level of 35 mg/dL **✔ 정답** 2. Sleepiness and poor feeding with a blood glucose level of 45 mg/dL 3. Mild irritability with a blood glucose level of 50 mg/dL 4. Weak cry and lethargy with a blood glucose level of 55 mg/dL **정답: 1** ## 해설 Jitteriness and tremors with a blood glucose of 35 mg/dL indicate severe hypoglycemia requiring immediate glucose administration to prevent neurological damage. Other options show milder symptoms with higher glucose levels, allowing for less urgent interventions. ## 심화 해설 Clinical Reasoning and Prioritization When assessing a newborn at risk for hypoglycemia, the nurse must integrate both the clinical presentation and the numerical blood glucose value to determine the urgency of intervention. While all options present signs that could be associated with low blood glucose, the combination of specific neurological symptoms and a critically low glucose level dictates the priority. Analyzing the Assessment Findings The most critical indicator is the presence of neuroglycopenic signs—symptoms resulting from the brain's deprivation of glucose—coupled with a blood glucose level that falls below established treatment thresholds. According to a systematic review of international guidelines, severe hypoglycemia, defined as a blood glucose level < 36 mg/dL (2 mmol/L), poses a direct risk of neurological injury and developmental delays [4]. The finding of jitteriness and tremors represents overt neurological irritability, a clear manifestation of this central nervous system fuel deficiency . In option 1, the blood glucose of 35 mg/dL is below the critical threshold of 36 mg/dL identified in the literature for potential brain injury, and it is accompanied by unmistakable neuroglycopenic signs [4]. This combination requires immediate intervention, typically with buccal dextrose gel or intravenous glucose, to prevent progression to more severe symptoms like lethargy or seizures. Differentiating the Other Options The other options, while concerning, do not represent the same level of immediate danger. Sleepiness and poor feeding (option 2) with a glucose of 45 mg/dL are common, non-specific signs of hypoglycemia that warrant prompt feeding and rechecking but are not a medical emergency in the same way as active neurological signs. Mild irritability (option 3) with a glucose of 50 mg/dL is a very mild presentation with a value that is above the typical operational threshold for treatment in many guidelines, where a value of 50-60 mg/dL is often a target range prior to feeding . A weak cry and lethargy (option 4) are late and ominous signs of a depleted central nervous system, but the associated glucose of 55 mg/dL is less consistent with a pure hypoglycemic cause and could indicate another underlying pathology such as sepsis; this would require investigation, but the immediate, life-saving intervention tied directly to the glucose value is less clear than in option 1. The clinical guideline synthesis indicates that management algorithms are driven by the combination of the measured blood glucose value and the presence or absence of abnormal clinical signs, with symptomatic hypoglycemia at any severe level requiring the most urgent escalation .References (research sources) - [4]Exploring the long-term impacts of neonatal hypoglycemia to determine a safe threshold for glucose concentrations.Research articleGarg M, Devaskar SU. (2025) · DOI: 10.1007/s00431-025-06082-z ## 임상 시나리오 Newborn Hypoglycemia ManagementRecognizing Critical Neuroglycopenic Signs The most critical indicator for immediate intervention is the presence of neuroglycopenic signs (e.g., jitteriness, tremors, seizures) combined with a blood glucose level below the critical threshold of 36 mg/dL (2 mmol/L). CautionA glucose level of 35 mg/dL with overt neurological symptoms is a medical emergency. Do not delay treatment with buccal dextrose gel or IV glucose while awaiting further orders, as this level poses a direct risk of brain injury. ## 핵심 개념 - **Neuroglycopenia** — A shortage of glucose in the brain causing neurological symptoms like jitteriness, tremors, lethargy, or seizures. - **Critical Glucose Threshold** — A blood glucose level below 36 mg/dL (2 mmol/L) in newborns, associated with a risk of neurological injury and requiring immediate intervention. - **Jitteriness and Tremors** — Overt signs of neurological irritability in a newborn, a key clinical manifestation of significant hypoglycemia. ## 같은 주제 문제 - [A nurse is caring for a 2-day-old newborn who was born at 38 weeks gestation to a mother w…](https://mymerci.kr/pages/nclex_q.php?qn_id=543314) - [A nurse is caring for a preterm infant who is at risk for hypoglycemia. Which assessment f…](https://mymerci.kr/pages/nclex_q.php?qn_id=543316) - [A newborn with hypoglycemia requires immediate nursing intervention. 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