Product Overview

Wheatley Trichrome Stain is a proven and widely used permanent stain designed for the microscopic identification of intestinal protozoa in preserved stool specimens. This stain provides clear, differential coloring of protozoan trophozoites and cysts, allowing for detailed examination of nuclear structure, cytoplasm, and inclusions, which are critical for species-level identification.

Wheatley’s formulation uses a modified chromotropic acid-based dye, which offers vivid contrast between protozoa, background material, and fecal debris. It is an essential tool in clinical parasitology labs, ideal for routine diagnosis of Entamoeba histolytica, Giardia lamblia, Dientamoeba fragilis, Blastocystis spp., and more.

When used with a fixative such as PVA (polyvinyl alcohol), Wheatley Trichrome provides a permanent mount, making it suitable for archival records and confirmatory testing.

Key Features:

• Permanent stain for intestinal protozoa in stool specimens
• Provides clear differentiation of nuclear and cytoplasmic structures
• Ideal for use with PVA-preserved fecal samples
• Supports diagnosis of amoebae, flagellates, ciliates, and microsporidia
• High contrast between organisms and fecal debris
• Commonly used in clinical microbiology, public health, and tropical medicine labs

Wheatley Trichrome Stain is a cornerstone of intestinal parasite diagnostics, offering consistent, detailed results that support accurate identification and improved patient outcomes.