Exhibit 12.1
QUEST DIAGNOSTICS INCORPORATED
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(DOLLARS IN THOUSANDS, EXCEPT RATIOS)
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| YEAR ENDED DECEMBER 31, |
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| 2010 |
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| 2009 |
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| 2008 |
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| 2007 |
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| 2006 |
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Income from continuing operations before taxes, equity earnings and net income attributable to non-controlling interests |
| $ | 1,154,276 |
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| $ | 1,194,240 |
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| $ | 1,020,613 |
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| $ | 912,380 |
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| $ | 1,028,161 |
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Adjustments: |
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Distributed income from less than 50% owned companies |
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| 30,883 |
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| 25,345 |
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| 28,752 |
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| 24,972 |
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| 26,411 |
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Fixed charges |
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| 212,543 |
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| 209,379 |
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| 248,716 |
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| 243,317 |
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| 147,133 |
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Earnings from continuing operations before taxes and fixed charges, as adjusted |
| $ | 1,397,702 |
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| $ | 1,428,964 |
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| $ | 1,298,081 |
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| $ | 1,180,669 |
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| $ | 1,201,705 |
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Fixed charges: |
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Interest expense |
| $ | 148,004 |
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| $ | 147,071 |
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| $ | 185,783 |
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| $ | 186,957 |
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| $ | 96,997 |
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Portion of rent expense which represents interest factor |
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| 64,539 |
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| 62,308 |
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| 62,933 |
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| 56,360 |
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| 50,136 |
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Total fixed charges |
| $ | 212,543 |
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| $ | 209,379 |
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| $ | 248,716 |
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| $ | 243,317 |
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| $ | 147,133 |
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Ratio of earnings to fixed charges |
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| 6.6x |
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| 6.8x |
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| 5.2x |
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| 4.9x |
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| 8.2x |
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