An apparatus (44) for analyzing a blood sample comprises a chamber (10) configured to quiescently hold the blood sample; an illuminator (46) configured to illuminate the blood sample along one or more fluorescent excitation wavelengths and one or more absorption wavelengths; an image dissector (48) configured to image at least a portion of the blood sample, and produce image signals representative of fluorescent emissions from, and optical density of, first constituents and second constituents disposed within the blood sample, which first constituents are different from the second constituents; and an analysis device (50) configured to determine one or more fluorescent emission values for each of the first constituents and second constituents using the image signals, and adapted to determine one or more optical density values for each of the first constituents and second constituents using the image signals, and adapted to identify the first constituents and the second constituents using the determined fluorescent emission and optical density values.
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