Cytohematology Proficiency Testing 12 March 2001
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Cell Classification or Finding Expected Range Participant Median Participant Range**
------------------------------- -------------- ------------------ -----------------
*[Myleblasts+Blasts not classified] 70 - 98 91 36 - 98
Lymphoblast/Prolymphocyte 0 - 0 0 0 - 85
Monoblast/Promonocyte 0 - 0 0 0 - 28
Erythroblast/Pronormoblast 0 - 0 0 0 - 0
Lymphoma cell 0 - 0 0 0 - 0
Hairy cell 0 - 0 0 0 - 0
Myelocyte 0 - 4 0 0 - 5
Metamyelocyte 0 - 2 0 0 - 3
Band neutrophil 0 - 3 0 0 - 4
Segmented neutrophil 1 - 6 1 0 - 9
*[Total neutrophils] 1 - 6 2 0 - 9
Eosinophil 0 - 2 0 0 - 4
Basophil 0 - 0 0 0 - 1
Lymphocyte 1 - 17 3 0 - 32
Atypical lymphocyte 0 - 0 0 0 - 9
Monocyte 0 - 6 1 0 - 10
Plasma cell 0 - 0 0 0 - 0
NRBC / 100 WBC 1 - 6 3 0 - 8
* Obtained by combining individual results.
** Participant range is the central 98 percentile of all participant results.
Slide: 036 (Continued)
Cell Classification or Finding Expected Result Participant Results
------------------------------------- --------------- -----------------------------------------------------------
Anisocytosis Moderate None ( 5%) Slight ( 15%) Moderate ( 69%) MarKed ( 12%)
Poikilocytosis Moderate None ( 10%) Slight ( 41%) Moderate ( 44%) MarKed ( 4%)
Macrocytosis None None ( 50%) Slight ( 41%) Moderate ( 8%) MarKed ( 1%)
Microcytosis None None ( 51%) Slight ( 33%) Moderate ( 15%) MarKed ( 1%)
Hypochromia None None ( 62%) Slight ( 31%) Moderate ( 6%) MarKed ( 0%)
Polychromasia Slight None ( 10%) Slight ( 66%) Moderate ( 24%) MarKed ( 1%)
Bizarre or irregular platelets Absent Absent(100%) Present( 0%)
Clumped platelets Absent Absent(100%) Present( 0%)
Giant platelets Absent Absent( 97%) Present( 3%)
Platelet satellitosis Absent Absent(100%) Present( 0%)
Auer rods Present Absent( 13%) Present( 87%)
Döhle bodies Absent Absent(100%) Present( 0%)
Hypersegmentation Absent Absent(100%) Present( 0%)
Pelger Huët anomaly Absent Absent(100%) Present( 0%)
Smudge / Basket cells Present Absent( 36%) Present( 64%)
Toxic granulation Absent Absent( 99%) Present( 1%)
Acanthocytes Absent Absent( 94%) Present( 6%)
Basophilic stippling Present Absent( 4%) Present( 96%)
Blister cells (pre keratocytes) Absent Absent( 99%) Present( 1%)
Cabot rings Absent Absent(100%) Present( 0%)
Echinocytes (crenated/burr cells) Absent Absent( 94%) Present( 6%)
Elliptocytes Absent Absent( 53%) Present( 47%)
Howell-Jolly bodies Absent Absent( 98%) Present( 2%)
Pappenheimer bodies Absent Absent(100%) Present( 0%)
Red cell agglutinates Absent Absent(100%) Present( 0%)
Rouleaux Absent Absent( 98%) Present( 2%)
Schistocytes Absent Absent( 57%) Present( 43%)
Schüffner's granules Absent Absent(100%) Present( 0%)
Sickle cells (drepanocytes) Absent Absent(100%) Present( 0%)
Spherocytes Absent Absent( 73%) Present( 27%)
Stomatocytes Absent Absent( 95%) Present( 5%)
Target cells (codocytes) Absent Absent( 97%) Present( 3%)
Teardrop cells (dacrocytes) Present Absent( 12%) Present( 88%)
Bacteria Absent Absent(100%) Present( 0%)
Fungi/yeast Absent Absent(100%) Present( 0%)
Malaria/Babesiosis Absent Absent(100%) Present( 0%)
Stain precipitate Absent Absent(100%) Present( 0%)
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