Bone Marrow Flashcards

1
Q

What are the two types of bone marrow exams?

A

Cone marrow core biopsy (trephine biopsy) and bone marrow aspiration

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2
Q

What are the sites of bone marrow aspiration and biopsy in adults? In children?

A

Adult aspiration sites- iliac crest, sternum; Adult biopsy site- iliac crest; Pediatric procedure sites- iliac crest, tibia

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3
Q

What is the M:E ratio? What method of bone marrow collection is used for samples to determine this?

A

The myeloid to erythroid ratio; Aspiration

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4
Q

What non-hematopoietic cells are abnormal when found in the bone marrow?

A

Metastatic tumor cells, granulamatous inflammation, proliferating fibroblasts; many lymphs or plasma cells

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5
Q

What method of bone marrow collection is used for samples to determine the cellularity or hematopoietic: fat cell ratio?

A

Biopsy

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6
Q

What is a bone marrow “dry tap” and what does it indicate?

A

When no sample can be aspirated- seen in several disease states where the marrow is majorly infiltrated fibrosis or metastatic cells

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