A sample analyzer comprising:a plurality of detectors each configured to sense cells in a sample, the sample selectively comprising (i) a blood sample or (ii) a body fluid sample, wherein the body fluid sample contains body fluid, other than blood, which is selected from a group consisting of cerebrospinal fluid, thoracic fluid, abdominal fluid, fluid collected in a cardiac sac, synovial fluid, dialysate from peritoneal dialysis, and intraperitoneal rinse;a controller programmed to selectively operate the sample analyzer in a blood measuring mode or a body fluid measuring mode, wherein the blood measuring mode includes a sequence of operations for measuring cells in the blood sample, and the body fluid measuring mode includes a sequence of operations for measuring cells in the body fluid sample, wherein a respective sequence of operations for measuring cells in the blood sample and in the body fluid sample comprises (a) a sensing operation comprising operations of preparing for measurement and operating a detector to sense the cells in the sample and (b) an analyzing operation comprising operations of analyzing sample measurements and displaying analysis results, the sensing operation performed in the body fluid measuring mode being different, at least partially, from the sensing operation performed in the blood measuring mode, and further wherein the plurality of detectors includes one or more multi-mode detectors configured to operate in both the blood measuring mode and the body fluid measuring mode, the controller programmed to:perform the sensing operation in the blood measuring mode to: introduce the blood sample into a multi-mode detector; operate said multi-mode detector to sense cells in the introduced blood sample; and derive blood-sample measurements of cells in the introduced blood sample; andperform the sensing operation in the body fluid measuring mode to: introduce the body fluid sample into said multi-mode detector; operate said multi-mode detector to sense cells in the introduced body fluid sample; and derive body-fluid-sample measurements of cells in the introduced body fluid sample. view more