Comprehensive Evaluation of Blood includes evaluation of blood morphology. If deemed necessary by the hematopathologist, flow cytometry, cytogenetics, and/or molecular diagnostics will be employed to render a concise, complete diagnosis.
Label each with patient name and other unique numeric identifier (date of birth, social security number, requisition number, and medical record number).
Include CBC report and clinical history/note.
Liquid specimens requirement: 5-6 mL blood in two (2) sodium heparin (green topped) tubes AND 5-6 mL blood in one (1) EDTA (lavender topped) tube. If WBC is < 5000/uL, include three (3) sodium heparin (green topped) tubes instead of two.
Smears requirement: Two (2) bedside or EDTA (lavender topped) tubes.CAUTION:
Light green (lithium heparin) tubes are toxic to cells and should not be used.
Clotted or hemolyzed are suboptimal specimens and should be avoided.
Specimens should never be frozen. Freezing the specimen kills the blood cells; therefore, frozen samples cannot be used for cytogenetics, flow cytometry, or many molecular diagnostic tests.