NORCET -4 , 2023: Which of the following finding is suggestive an abnormal reading in a 4 hours old new born?

NORCET -4 , 2023

Child Health Nursing (Pediatrics)

Medium

Appeared in: NORCET -4 , 2023

Explanation

A blood glucose level of 30 mg/dL in a 4-hour-old newborn is defined as neonatal hypoglycemia.
Normal blood glucose in a term neonate should be maintained at a level greater than 45 mg/dL.
Hypoglycemia is a common yet serious metabolic problem in newborns that requires prompt intervention (e.g., feeding, IV glucose) to prevent potential central nervous system damage.

Option A: A platelet count of 200,000/mm3 is well within the normal range for a newborn, which is typically 150,000 to 400,000/mm3.
Option B: A WBC count of 17,000/mm3 is a normal finding. Newborns exhibit a physiological leukocytosis (high WBC count), with normal values ranging from 9,000 to 30,000/mm3.
Option C: A hemoglobin level of 18 g/dL is normal. Newborns have higher hemoglobin levels (polycythemia) to compensate for the lower oxygen environment in utero. The normal range is approximately 14 to 20 g/dL.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Interpretation of neonatal laboratory values as background academic context rather than a clinical decision trigger.
Nurses must be able to recognize the subtle signs of neonatal hypoglycemia, which include jitteriness, lethargy, poor feeding, hypotonia, and in severe cases, seizures. Prompt identification is key.
The primary nursing intervention for a blood glucose of 30 mg/dL is to initiate feeding (breast or formula) immediately. If the infant is unable to feed or the glucose does not rise, intravenous glucose is administered as per protocol.
Accurate interpretation of a newborn's complete blood count (CBC) is crucial to differentiate normal physiological variations from signs of infection, anemia, or other hematological disorders.

How to Approach the Question

First, identify the core task of the question: find the ABNORMAL lab value for a 4-hour-old newborn.
Systematically evaluate each option by comparing the given value to the standard laboratory reference ranges for a neonate.
For Option A (Platelets 200,000), recall that the normal range is approximately 150,000-400,000/mm3. This value is normal.
For Option B (WBC 17,000), recall that newborns have a higher WBC count, typically 9,000-30,000/mm3. This value is normal.
For Option C (Hemoglobin 18 g/dL), recall that the normal range for a newborn is high, around 14-20 g/dL. This value is normal.
For Option D (Blood glucose 30 mg/dL), recall that the target for a stable newborn is a blood glucose level greater than 45 mg/dL. A value of 30 mg/dL is low and indicates hypoglycemia.

Concept Tested & Keywords

Concept Tested: Interpretation of neonatal laboratory values
Stem keywords: abnormal reading, 4 hours old new born
Lead-in keywords: Which
Clinical cues: Patient age: 4 hours old, which is a critical period for metabolic stabilization.

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