WBC differential (blood smear)
Species: All species
Specimen: Glass slide with film made from EDTA blood (lavender top) or from fresh blood immediately after collection
Container: Send in a plastic slide holder, protected from breaking while on courier
Make smears preferably as soon as blood is taken, but as soon as is practicable. Degeneration of leukocytes may be seen within 15-20 mins of taking blood sample
Special handling/shipping requirements:
Air dry as quickly as possible. Do not refrigerate.
Comparison with other related tests:
Some of these preparation criteria apply to general cytology smears.