QuestionSBA
QuestionChoice
This answer is correct. Coarctation of the aorta is an acyanotic congenital heart condition where there is narrowing of the aortic arch. It presents with a systolic murmur, differences in oxygen saturations between the upper and lower limb, and weak or absent femoral pulses.
10007476
a
Coarctation of the aorta
QuestionChoice
This answer is incorrect. Tetralogy of Fallot is a cyanotic congenital heart condition that causes cyanosis and low oxygen saturations in all four limbs. It does not cause absent femoral pulses. It is usually identified on antenatal scans.
10007478
c
Tetralogy of Fallot
QuestionChoice
This answer is incorrect. Aortic valve stenosis restricts blood flow from the left ventricle to the aorta. Whilst it causes a systolic murmur, aortic stenosis does not account for the absent femoral pulses and difference in oxygen saturation between the upper and lower limbs.
10007477
b
Aortic valve stenosis
QuestionChoice
This answer is incorrect. Ventricular septal defects are often asymptomatic but can produce a systolic murmur. However, it does not cause differences in oxygen saturation between the upper and lower limbs or absent femoral pulses.
10007480
e
Ventricular septal defect
QuestionChoice
This answer is incorrect. Transposition of the great arteries is a cyanotic congenital heart condition that causes cyanosis and low oxygen saturations in all four limbs. It does not cause absent femoral pulses. It is usually identified on antenatal scans.
10007479
d
Transposition of the great arteries
Concept
Chapter
2693
4601
Coarctation of aorta
Topic
153
Paediatrics
14042
A one day old baby has his routine newborn examination by the paediatric registrar before being discharged home.

Examination findings:

* Upper limb oxygen saturation - 99%
* Lower limb oxygen saturation - 91%
* Femoral pulses - not palpable
* Auscultation of heart - systolic murmur present

Which of the following congenital heart conditions is this baby most likely to have?
a