Question:easy
In a 34-week gestation the weight of the baby was 3 kg. The child shows the following features, which may indicate an associated condition.
In a 34-week gestation the weight of the baby was 3 kg. The child shows the following features, which may indicate an associated condition.
Show Hint
A large-for-dates, overgrown fetus points to maternal diabetes-driven macrosomia.
Updated On: Jun 23, 2026
- Anemia
- Diabetes
- APH
- None
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Compare the weight against the gestational age. At 34 weeks a 3 kg baby plots well above the 90th centile, marking the infant as oversized for dates - the hallmark of macrosomia.
Step 2: Trace the mechanism. Maternal hyperglycaemia floods the fetus with glucose; the fetal pancreas responds with excess insulin, an anabolic growth factor that lays down extra fat and glycogen. The maternal driver of this picture is diabetes, classically gestational diabetes.
Step 3: Anchor the thresholds: above the 90th centile or two standard deviations defines macrosomia, $>4500\ g$ by ACOG and $>4000\ g$ in Indian practice. The accelerated growth shown fits this definition.
Step 4: Discard the distractors that shrink rather than enlarge the fetus: maternal anaemia and antepartum haemorrhage both impair placental oxygen delivery and tend toward growth restriction, so neither explains an overgrown baby, and 'None' cannot apply.
\[\boxed{\text{Diabetes}}\]
Step 2: Trace the mechanism. Maternal hyperglycaemia floods the fetus with glucose; the fetal pancreas responds with excess insulin, an anabolic growth factor that lays down extra fat and glycogen. The maternal driver of this picture is diabetes, classically gestational diabetes.
Step 3: Anchor the thresholds: above the 90th centile or two standard deviations defines macrosomia, $>4500\ g$ by ACOG and $>4000\ g$ in Indian practice. The accelerated growth shown fits this definition.
Step 4: Discard the distractors that shrink rather than enlarge the fetus: maternal anaemia and antepartum haemorrhage both impair placental oxygen delivery and tend toward growth restriction, so neither explains an overgrown baby, and 'None' cannot apply.
\[\boxed{\text{Diabetes}}\]
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