Laboratory Corp (NYSE:LH) reported quarterly earnings of $4.18 per share which beat the analyst consensus estimate of $4.13 by 1.11 percent. This is a 19.43 percent increase over earnings of $3.50 per share from the same period last year. The company reported quarterly sales of $3.564 billion which beat the analyst consensus estimate of $3.559 billion by 0.14 percent. This is a 8.59 percent increase over sales of $3.282 billion the same period last year.