Which of the following abnormal conditions is not seen in a mother with diabetes mellitus?

BSF Staff Nurse - 2021

Obstetrics & Gynaecology

Hard

Appeared in: BSF Staff Nurse - 2021

Explanation

Infants of diabetic mothers (IDMs) experience fetal hyperinsulinism in response to maternal hyperglycemia.
After birth, the maternal glucose supply is cut off, but the infant's high insulin levels persist.
This persistent hyperinsulinism leads to rapid glucose uptake from the blood, causing neonatal hypoglycemia (low blood sugar).
Therefore, hyperglycemia (high blood sugar) is not an expected condition in the infant after birth.

Option B: Hypoglycemia is the hallmark metabolic complication in infants of diabetic mothers due to persistent fetal hyperinsulinism after birth.
Option C: Hyperbilirubinemia is a common finding in IDMs. It is caused by polycythemia (increased red blood cell mass) and the immature liver's inability to conjugate bilirubin effectively.
Option D: Hypocalcemia is a known complication in IDMs, typically appearing 24 to 72 hours after birth. It is thought to be related to delayed parathyroid gland function.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Complications in the Infant of a Diabetic Mother (IDM) as background academic context rather than a clinical decision trigger.
Nurses must prioritize blood glucose monitoring for infants of diabetic mothers, starting within the first hour of life and continuing frequently as per protocol.
Key nursing interventions for an IDM include promoting early and frequent feedings (breast milk or formula) to prevent hypoglycemia, maintaining the infant's body temperature to reduce metabolic stress, and monitoring for signs of respiratory distress, jaundice, and jitteriness.
What if? If the mother's diabetes was well-controlled with an HbA1c below 6.5% throughout the pregnancy, the risk of these neonatal complications would be significantly lower, but not zero. The infant would still be considered at-risk and require close monitoring.

How to Approach the Question

First, analyze the question stem. It asks for a condition NOT seen in a 'mother with diabetes mellitus'.
Next, examine the options: Hyperglycemia, Hypoglycemia, Hyperbilirubinemia, and Hypocalcemia.
Recognize that the last three options are classic complications for the infant of a diabetic mother (IDM). This suggests the question, despite its wording, is likely about the infant.
A mother with diabetes has hyperglycemia by definition and can have hypoglycemia from treatment. This makes the question confusing if taken literally.
Proceed with the strong contextual clue that the question is about the IDM. The task is to find the exception among the options for an IDM.
Recall the pathophysiology: maternal hyperglycemia leads to fetal hyperinsulinism. After birth, this high insulin causes hypoglycemia in the infant, not hyperglycemia. Therefore, hyperglycemia is the condition that is not seen.

Concept Tested & Keywords

Concept Tested: Complications in the Infant of a Diabetic Mother (IDM)
Stem keywords: mother with diabetes mellitus, abnormal conditions
Lead-in keywords: not seen
Clinical cues: The combination of hypoglycemia, hyperbilirubinemia, and hypocalcemia strongly points towards complications in a newborn, specifically an infant of a diabetic mother.
Negative lead-in flag: The question asks to identify the condition that is NOT seen.

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E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 181-183

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1151-1153