Test Code: 
CYTO
Tube Colour: 
Yellow top universal/ 24 Hr plain container
Department: 
Cytology
Pseudonyms: 
Differential White Blood Cell (WBC) count
Collection Requirements: 
Min.10 ml Max.2 litres. For optimal results 50ml is required. All bloodstained fluid heparinized at 5 units/ml
Availability: 
Weekdays
Requires own tube?: 
No
Fee: 
Medicare rebatable
A Differential Cell Count is a cytology test whereas a Cell Count is a Microbiology test* (See Below). For Pleural fluids, Pericardial fluids and Ascitic fluids, a Differential Cell Count determines the relative percentage of each type of white blood cell, including neutrophils, lymphocytes and eosinophils. For CSF(Cerebrospinal fluids) and Peritoneal Dialysis Fluids (PDF), a Differential Cell Count determines the relative percentage of each type of white blood cell, including neutrophils, lymphocytes and eosinophils, in 0.5 mL of fluid. This is expressed as a number of cells per 0.5 mL of fluid. A differential cell count can also detect abnormal white blood cell populations (eg, blasts, immature granulocytes, or circulating lymphoma cells in the fluid and abnormalities/malignancies. *A Cell Count (performed in Microbiology), measures the number of white blood cells and red blood cells in the fluid, and are usually expressed as a number of cells per unit of volume.