Try it
Pediatrics · Neonatology: infant of diabetic mother
Sample itemA woman with poorly controlled pregestational diabetes is counselled about fetal risks. Which malformation is the most specific for diabetic embryopathy?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Caudal regression syndrome
Caudal regression syndrome, with sacral agenesis and hypoplasia of the lower limbs, is the most specific anomaly of maternal diabetes. Cardiac defects are the commonest overall. Good periconceptional glycaemic control lowers the risk.
Option by option
A. Duodenal atresia
Duodenal atresia is associated with Down syndrome rather than maternal diabetes.
B. Caudal regression syndrome (correct)
Correct. Sacral agenesis is the characteristic malformation of diabetic embryopathy.
C. Neural tube defect at the cervical level
Neural tube defects occur more often in diabetes but are not the most specific, and the described finding is not cervical.
D. Polydactyly
Polydactyly is not a recognised feature of diabetic embryopathy.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
More Pediatrics questions
- Neonatology: infant of diabetic motherA macrosomic newborn of a mother with poorly controlled diabetes is jittery at 3 hours.…
- Neonatology: infant of diabetic motherA macrosomic newborn of a poorly controlled diabetic mother is jittery and has a systoli…
- Congenital heart diseaseWhich is the most common cyanotic congenital heart disease presenting beyond the neonata…
- NutritionWhich feature most clearly distinguishes kwashiorkor from marasmus?