Slide 001: Diagnosis: Folate deficiency. Available data: 88 year- old female. Prominent cell findings pertaining to Slide 001 included: anisocytosis , macrocytes , hypersegmented neutrophils , schistocytes and acanthocytes . Laboratories failing to identify these features were assigned error points. Giant platelets, acanthocytes, echinocytes, elliptocytes, spherocytes, and tear drop cells (dacrocytes) although not in abundance, were present on this slide. No error points were issued when identifying those features. Four hundred seventy-one (471) laboratories passed this slide with a score of 80% or higher. Two (2) laboratories received scores below 80%.   Go to Slide 001 statistics database Return to March 1997 Cytohematology Glass Slide Event

Laboratory  Data WBC 3.8 X 10 9 / L RBC 2.69 X 10 12 /L Hemoglobin 12.4 g/dL Hematocrit 37.8 % MCV 140.4fL MCH 46.1pg MCHC 32.8g/dL Platelet 271 X 10 9 / L