| abstract |
A blood analyzer including a specimen preparation unit, a flow cell, a light source unit, light receivers, and a processing unit. The processing unit is configured to identify and count lymphocytes in the first measurement specimen by using first scattered light information based on the first scattered light and second scattered light information based on the second scattered light, and configured to identify and count blood cells having thereon the predetermined surface antigen in the first measurement specimen by using first fluorescence information based on the first fluorescence. |