Alere Health S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 12.2

Calculation of Ratios of Earnings to Combined Fixed Charges and Preference Dividends
(in thousands)

	For the Years Ended December 31,
	2009		2008			2007			2006			2005
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERENCE DIVIDENDS:
Pre-tax (loss) income from continuing operations before adjustment for income from equity investees		42,260		(37,042	)		(248,419	)		(8,211	)		(11,299	)
Fixed charges:
Interest expense (a)		106,733		101,144			83,025			26,570			21,795
Interest portion of rent expense (b)		9,316		8,555			4,064			2,956			2,504
Total fixed charges		116,049		109,699			87,089			29,526			24,299
Preference dividends		38,287		23,315			—			—			—
Total combined fixed charges and preference dividends		154,336		133,014			87,089			29,526			24,299
Total earnings (loss)		158,309		72,657			(161,330	)		21,315			13,000
Ratio of earnings to combined fixed charges and preference dividends		1.0x		0.5x			—			0.7x			0.5x
Ratio of coverage deficiency				(c	)		(c	)		(c	)		(c	)

(a)	Interest expense includes the write-off and amortization of deferred financing costs and the write-off and amortization of non-cash discounts associated with our debt issuances.
(b)	Includes approximately one-fourth of the rent expense for each period presented which management believes is a reasonable approximation of the interest component of such rentals.
(c)	Due to the loss from continuing operations for the years ended December 31, 2008, 2007, 2006 and 2005, there were insufficient earnings of $37.0 million, $248.4 million, $8.2 million and $11.3 million, respectively, to cover combined fixed charges and preference dividends.