Stain #6: Trichrome Stain
🔬 Purpose: Identify intestinal protozoa
🎯 Primary Use: Stool O&P exams
👀 Results:
• Protozoa cytoplasm = blue-green
• Nuclei = red/purple
⚠️ Key Point: Preserved stool required
📝 ASCP Tip: Parasites = Trichrome
What you see:
Blue-green cytoplasm with red nuclei in protozoa