Patent ID: 8920726

Claim:
A blood analyzer comprising: a sample preparation portion configured to prepare a first measurement sample and a second measurement sample; a light information generation portion configured to generate first fluorescent information and at least two types of first scattered light information from said first measurement sample and to generate second fluorescent information and second scattered light information from said second measurement sample; and a control portion configured to instruct the sample preparation portion to prepare the first measurement sample by mixing a first aliquot of a blood sample and first aliquot of a hemolytic agent, and to prepare the second measurement sample by mixing a second aliquot of said blood sample, a second aliquot of said hemolytic agent, and a staining agent, perform a first classification of white blood cells in said first measurement sample into at least four groups comprising monocytes, neutrophils, eosinophils and others on the basis of said first fluorescent information and said two types of first scattered light information generated by said light information generation portion, and classify blood cells in said second measurement sample into at least malaria-infected red blood cells and others on the basis of said second fluorescent information and said second scattered light information generated by said light information generation portion, wherein said sample preparation portion is further configured to prepare a third measurement sample, said blood analyzer further comprising an electrical information generation portion configured to generate electrical information of a sample from said third measurement sample, and wherein said control portion is configured to perform a second classification of white blood cells in said third measurement sample into at least lymphocytes and others on the basis of said electrical information generated by said electrical information generation portion and classify white blood cells in said measurement samples into at least five groups comprising lymphocytes, basophils, monocytes, neutrophils and eosinophils on the basis of classification results of said first classification and said second classification.