Test Description
Bone marrow aspirate is a medical procedure that involves the removal of a small amount of bone marrow fluid (aspirate) from the bone marrow for analysis. The procedure is usually done by a doctor who specializes in blood disorders (hematologist) or by nurses with special training. The aspirate is important in the evaluation of acute leukemias and MDS, where an accurate enumeration of the blasts is essential for diagnosis. Aspirate is also important in diseases with patchy marrow involvement (i.e. plasma cell dyscrasias).
Indications of the Test
Bone marrow evaluation plays a critical role in the diagnosis, staging, and monitoring of many diseases. Doctors use bone marrow exams to diagnose and monitor blood and marrow diseases, including leukemia, lymphoma, multiple myeloma, anemia, and other blood disorders.
Patient Preparation/Instructions
Before the procedure, the patient’s blood pressure and heart rate will be checked, and they will be given some form of anesthesia to keep them comfortable. A bone marrow examination can be done with only local anesthesia to numb the area where the needles are inserted.
Typical Reference Values
There are no typical reference values for bone marrow aspiration. The results of the test are used to diagnose and monitor blood and marrow diseases.
Turnaround Time
The bone marrow exam typically takes about 3-7 days.
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