This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
A child with tetralogy of fallot uses which of the following positions – 
Select and explain. 
A. Supine, B. Prone, C. Squatting, D. Leaning forwards
C: Squatting
Answer: C: Squatting 
Explanation: The patients of TOF assume a sitting posture (squatting) as soon as they get dyspneic.
TOF is the commonest congenital lesion in which squatting is noted.