Employee was helping to lift a small flat cart from the 2nd floor to the 2-1/4 floor when he experienced pain in his right side. Employee worked his next scheduled shift, reported the accident on 12/1/2009, saw a doctor on 12/16/2009, and missed 12/18/2009 for a CT scan. He reported back to work for his next regular shift on 12/21/2009.