The cardiothoracic ratio aids in the detection of cardiomegaly, or more broadly, enlargement of the cardiac silhouette. It is measured on a PA chest x-ray, and is the ratio of:
Disability around the World: It's estimated that more than 1 billion people live with a disability. (United Nations, 2013) This represents the worldâs largest minority, and the only minority group that any of us can become a member of at any time.
There was 6,997,426,800 people in the world. 10% of people are left handed. 10% of 6 billion is, 699,742,680! That many people are left handed, whicâ¦h is an estimate. Left handed people are few. There are about 1 in 10 lefties (10%) and some of those are ambidextrous (able to use both hands).