Coaching is training or development in which a person called a coach supports a learner in achieving a specific personal or professional goal. The learner is sometimes called a coachee.
From Wikipedia: Tetralogy of Fallot (TOF) is a congenital heart defect which is classically understood to involve four anatomical abnormalities (although only three of them are always present). It is the most common cyanotic heart defect, representing 55-70%, and the most common cause of blue baby syndrome..
pulmonary cyanosis central cyanosis due to poor oxygenation of the blood in the lungs. cyanosis reÂ´tinae cyanosis of the retina, observable in certain congenital cardiac defects. shunt cyanosis central cyanosis due to the mixing of unoxygenated blood with arterial blood in the heart or great vessels.