Cytohematology Proficiency Testing 24 March 1997 Slide: 005 Go to Slide 005 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 - 1 0 0 - 1 Metamyelocyte 0 - 1 0 0 - 2 Band neutrophil 0 - 16 4 0 - 22 Segmented neutrophil 63 - 85 78 53 - 88 *[Total neutrophils] 74 - 88 82 70 - 90 Eosinophil 0 - 6 3 0 - 8 Basophil 0 - 2 0 0 - 2 Lymphocyte 4 - 13 9 2 - 15 Atypical lymphocyte 0 - 2 0 0 - 4 Monocyte 2 - 10 6 0 - 11 Plasma cell 0 - 0 0 0 - 0 NRBC / 100 WBC 0 - 1 0 0 - 1 * 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 Slight None ( 29%) Slight ( 53%) Moderate ( 18%) MarKed ( 0%) Poikilocytosis Slight None ( 29%) Slight ( 37%) Moderate ( 29%) MarKed ( 6%) Macrocytosis Slight None ( 82%) Slight ( 17%) Moderate ( 1%) MarKed ( 0%) Microcytosis Slight None ( 56%) Slight ( 22%) Moderate ( 19%) MarKed ( 3%) Hypochromia None None ( 97%) Slight ( 3%) Moderate ( 0%) MarKed ( 0%) Polychromasia Slight None ( 22%) Slight ( 67%) Moderate ( 10%) MarKed ( 0%) Bizarre or irregular platelets Absent Absent( 71%) Present( 29%) Clumped platelets Absent Absent( 98%) Present( 2%) Giant platelets Present Absent( 6%) Present( 94%) Platelet satellitosis Absent Absent( 99%) Present( 1%) Auer rods Absent Absent(100%) Present( 0%) Döhle bodies Absent Absent( 99%) Present( 1%) Hypersegmentation Absent Absent( 97%) Present( 3%) Pelger Huët anomaly Absent Absent(100%) Present( 0%) Smudge / Basket cells Absent Absent( 97%) Present( 3%) Toxic granulation Absent Absent( 85%) Present( 15%) Acanthocytes Present Absent( 38%) Present( 62%) Basophilic stippling Absent Absent( 86%) Present( 14%) Blister cells (pre keratocytes) Absent Absent(100%) Present( 0%) Cabot rings Absent Absent(100%) Present( 0%) Echinocytes (crenated/burr cells) Absent Absent( 54%) Present( 46%) Elliptocytes Absent Absent( 98%) Present( 2%) Howell-Jolly bodies Present Absent( 47%) Present( 53%) Pappenheimer bodies Absent Absent( 92%) Present( 8%) Red cell agglutinates Absent Absent(100%) Present( 0%) Rouleaux Absent Absent( 94%) Present( 6%) Schistocytes Absent Absent( 87%) Present( 13%) Schüffner's granules Absent Absent(100%) Present( 0%) Sickle cells (drepanocytes) Absent Absent( 99%) Present( 1%) Spherocytes Present Absent( 39%) Present( 61%) Stomatocytes Absent Absent( 99%) Present( 1%) Target cells (codocytes) Absent Absent(100%) Present( 0%) Tear drop cells (dacrocytes) Absent Absent( 98%) Present( 2%) 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%) Go to Slide 005 critique