ResMed, San Diego, has announced record revenue and income for the quarter ended March 31. Revenue for the 2009 quarter was $227.9 million, an 8 percent increase (a 16 percent increase on a constant currency basis) over the 2008 quarter. Income from operations was $52.5 million and net income was $39.2 million, an increase of 40 percent and 32 percent, respectively, compared to last year's results. Earnings per share were $0.51, an increase of 34 percent over the same quarter in 2008.