What should you know about normal flow cytometry?

Flow cytometry passes cells through an instrument that measures physical features and selected markers. It can separate cell groups and help identify an unusual pattern in blood, marrow, lymph node or another fluid sample. A normal result applies to the sample received and the markers included in the laboratory panel.

The finding is interpreted with the sample source, blood counts, microscope findings, imaging, symptoms and any chromosome or molecular tests. A clear flow result may be reassuring without answering every diagnostic question.

Ask what specimen was tested, whether it was adequate and which cell groups were assessed. Review the report with the clinician who ordered it, especially if you have persistent enlarged lymph nodes, abnormal blood counts, fevers, night sweats or unexplained weight change. Depending on the situation, follow-up may include repeat blood work, imaging or a Bone Marrow Biopsy.

Get prompt medical advice for a persistent fever, repeated infections, new unusual bruising, bleeding, severe fatigue or rapidly enlarging swelling. Emergency care is needed for severe breathlessness, confusion, fainting or uncontrolled bleeding. These warning signs need attention independently of a normal laboratory result.

What sample was analysed and was it sufficient? Which conditions can this panel detect? What do my other tests show? Could a different specimen or Bone Marrow Biopsy add information? When should my symptoms or blood counts be checked again?