DOW JONES NEWSWIRES 
 

Quest Diagnostics Inc. (DGX) reversed a year-earlier loss in the fourth quarter caused by red ink from discontinued operations as testing volume dropped slightly.

The diagnostic-testing company reported net income of $169.8 million, or 87 cents a share, compared with a year-earlier net loss of $5.3 million, or 3 cents a share, caused by a $190 million charge related to an investigation of NID, a test-kit manufacturing subsidiary closed in 2006. Prior-year earnings from continuing operations were 79 cents.

Revenue increased 1.7% to $1.8 billion as revenue per requisition rose 2.8%.

Analysts' estimates were for per-share earnings of 80 cents on revenue of $1.82 billion, according to a poll by Thomson Reuters.

Clinical-testing revenue rose 2.3% despite a 0.4% decline in volume as drug-abuse testings, which are sensitive to job-hiring volume, dropped.

Quest offers a variety of tests, from routine blood work to sophisticated genetic tests, and no one type provides a large portion of its revenue.

Earlier this month, Quest admitted it provided possibly wrong results for thousands of vitamin D tests in the past two years. The company said it had fixed the problem and is offering free retests, but the incident could raise calls for more regulation of diagnostic testing just as it is playing a more important role in guiding medical treatment.

Looking ahead, the company predicted 2009 earnings of $3.50 to $3.70 a share on revenue growth of about 3%. Analysts were looking for earnings of $3.55 a share on revenue growth of 4% to $7.5 billion.

Quest's shares closed at $46.58 on Friday and didn't trade premarket.

-By Kathy Shwiff, Dow Jones Newswires; 201-938-5975; Kathy.Shwiff@dowjones.com

-By Tess Stynes, Dow Jones Newswires; 201-938-2473; tess.stynes@dowjones.com

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