Cytohematology Proficiency Testing 2 February 1998 Slide: 008 Go to Slide 008 critique Cell Classification or Finding Expected Range Participant Median Participant Range -------------------------------- -------------- ------------------ ----------------------- Blast cell not classified 0 - 0 0 0 - 0 Myeloblast/Promyelocyte 0 - 0 0 0 - 0 Lymphoblast/Prolymphocyte 0 - 0 0 0 - 0 Monoblast/Promonocyte 0 - 0 0 0 - 0 Erythroblast/Pronormoblast 0 - 0 0 0 - 0 Lymphoma cell 0 - 0 0 0 - 0 Hairy cell 0 - 0 0 0 - 0 Myelocyte 0 - 3 1 0 - 4 Metamyelocyte 0 - 2 1 0 - 3 Band neutrophil 0 - 9 3 0 - 12 Segmented neutrophil 43 - 61 52 39 - 63 *[Total neutrophils] 46 - 63 56 46 - 65 Eosinophil 1 - 6 3 0 - 8 Basophil 0 - 2 0 0 - 2 Lymphocyte 23 - 39 31 21 - 41 Atypical lymphocyte 0 - 4 0 0 - 5 Monocyte 2 - 12 7 1 - 13 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. Cell Classification or Finding Expected Result Participant Results -------------------------------- --------------- ----------------------------------------------------------- Anisocytosis Moderate None ( 2%) Slight ( 4%) Moderate ( 55%) MarKed ( 39%) Poikilocytosis MarKed None ( 3%) Slight ( 3%) Moderate ( 33%) MarKed ( 62%) Macrocytosis None None ( 41%) Slight ( 25%) Moderate ( 30%) MarKed ( 4%) Microcytosis None None ( 42%) Slight ( 32%) Moderate ( 24%) MarKed ( 3%) Hypochromia Moderate None ( 22%) Slight ( 18%) Moderate ( 46%) MarKed ( 14%) Polychromasia Moderate None ( 3%) Slight ( 11%) Moderate ( 60%) MarKed ( 26%) Bizarre or irregular platelets Absent Absent( 97%) Present( 3%) Clumped platelets Absent Absent(100%) Present( 0%) Giant platelets Absent Absent( 50%) Present( 50%) Platelet satellitosis Absent Absent(100%) Present( 0%) Auer rods Absent Absent(100%) Present( 0%) Döhle bodies Absent Absent(100%) Present( 0%) Hypersegmentation Absent Absent(100%) Present( 0%) Pelger Huët anomaly Absent Absent(100%) Present( 0%) Smudge / Basket cells Absent Absent( 83%) Present( 17%) Toxic granulation Absent Absent( 88%) Present( 12%) Acanthocytes Absent Absent( 93%) Present( 7%) Basophilic stippling Absent Absent( 83%) Present( 17%) Blister cells (pre keratocytes) Absent Absent( 99%) Present( 1%) Cabot rings Absent Absent(100%) Present( 0%) Echinocytes (crenated/burr cells) Absent Absent( 92%) Present( 8%) Elliptocytes Present Absent( 55%) Present( 45%) Howell-Jolly bodies Present Absent( 22%) Present( 78%) Pappenheimer bodies Absent Absent( 99%) Present( 1%) Red cell agglutinates Absent Absent(100%) Present( 0%) Rouleaux Absent Absent( 98%) Present( 2%) Schistocytes Absent Absent( 56%) Present( 44%) Schüffner's granules Absent Absent(100%) Present( 0%) Sickle cells (drepanocytes) Present Absent( 0%) Present(100%) Spherocytes Absent Absent( 76%) Present( 24%) Stomatocytes Absent Absent( 95%) Present( 5%) Target cells (codocytes) Present Absent( 2%) Present( 98%) Tear drop cells (dacrocytes) Absent Absent( 84%) Present( 16%) Bacteria Absent Absent(100%) Present( 0%) Fungi/yeast Absent Absent(100%) Present( 0%) Malaria/Babesiosis Absent Absent(100%) Present( 0%) Stain precipitate Absent Absent( 98%) Present( 2%) Go to Slide 008 critique