Qiagen (QGEN) came out with quarterly earnings of $0.57 per share, beating the Zacks Consensus Estimate of $0.54 per share. This compares to earnings of $0.52 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of 5.56%. A quarter ago, it was expected that this diagnostic products maker would post earnings of $0.52 per share when it actually produced earnings of $0.55, delivering a surprise of 5.77%.Over the last four quarters, the c ...