Quest Diagnostics (DGX) came out with quarterly earnings of $2.23 per share, beating the Zacks Consensus Estimate of $2.19 per share. This compares to earnings of $2.15 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of 1.83%. A quarter ago, it was expected that this medical laboratory operator would post earnings of $2.26 per share when it actually produced earnings of $2.30, delivering a surprise of 1.77%.Over the last four qua ...