Match each pediatric clinical presentation and diagnostic finding to the most likely congenital cardiovascular disorder.
- A neonate presents with cyanosis within hours of birth; chest radiography demonstrates a narrow mediastinum and an 'egg-on-a-string' cardiac silhouette.Transposition of the great arteries
- A cyanotic infant is evaluated; electrocardiography reveals left axis deviation, tall P waves, and absent R waves in the right precordial leads.Tricuspid atresia
- An older child presents with recurrent epistaxis; physical examination reveals bounding brachial pulses and significantly delayed, weak femoral pulses.Coarctation of the aorta
- An asymptomatic toddler is noted to have a widely split, fixed S2 and a grade 2/6 systolic ejection murmur at the left upper sternal border.Atrial septal defect
Answer
The presentations match as follows: The 'egg-on-a-string' radiograph matches with Transposition of the great arteries. The cyanotic infant with left axis deviation matches with Tricuspid atresia. The child with epistaxis and delayed femoral pulses matches with Coarctation of the aorta. The toddler with a widely split, fixed S2 matches with Atrial septal defect.
Each clinical presentation is carefully matched to its pathognomonic physical examination, radiographic, or electrocardiographic findings. Recognizing these distinct diagnostic associations is essential for accurately identifying specific congenital heart defects.
Step-by-Step Solution
Key Concept
Classic diagnostic features and physical examination findings of pediatric congenital heart defects
Estimated Time:1m 30s