Zero on the Celsius scale (0 Â°C) is now defined as the equivalent to 273.15 K, with a temperature difference of 1 deg C equivalent to a difference of 1 K, meaning the unit size in each scale is the same.
Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart.Normally, the atria are separated by a dividing wall, the interatrial septum.trial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart.
An atrial septal defect (ASD) is an opening or hole in the wall that separates the two upper chambers of the heart.This wall is called the atrial septum. The hole causes oxygen-rich blood to leak from the left side of the heart to the right side.n atrial septal defect (ASD) is an opening or hole in the wall that separates the two upper chambers of the heart.