Rapid•Stain Kit™ for Hematology is a rapid stain that is used in the Histology and Hematology Laboratories. Rapid•Stain™ quickly stains peripheral blood smears with the traditional colors and results expected from Romanowsky-type dyes. Additionally, Rapid•Stain™ works well on all air-dried smear preparations where a Wrights Stain is traditionally used. These preparations include tissue imprints and tissue biopsy smears, such as those from pulmonary biopsies or gastrointestinal biopsies.