A two-year old boy presented with episodes of becoming dusky. On examination, there was central cyanosis and clubbing. There was no pallor, oedema or respiratory distress. The hea was normal sized with a parasternal heave. A systolic thrill was palpable over the left middle sternal border. First hea sound was normal and only the aoic component was audible in the second hea sound. Liver was not enlarged - What would be the likely diagnosis ?
Ans. is 'd' i.e., Tetralogy of fallot o Features in this child suggestive of TOF : - i) Cyanosis at 2 year (not at bih) ii) No pallor, dysnea or edema No CHF iii) Normal sized hea o These features suggest the diagnosis of TOF. o These have been explained earlier.
Congenital methemoglobinemia
Eisenmenger syndrome
Aoic stenosis
Tetralogy of Fallot