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TRICHROME STAIN: Procedure (Mercury-based Fixatives)

Note: In all staining procedures for fecal and gastrointestinal tract specimens, the term xylene will be used in the generic sense. Xylene substitutes are recommended for the safety of all personnel performing these procedures.

1. Prepare slide for staining as described above.

2. Remove slide from Schaudinn's fixative and place slide in 70% ethanol for 5 min.

3. Place slide in 70% ethanol plus iodine (strong tea color) for 1 min for fresh specimens or 5 to 10 min for PVA air-dried smears.

4. Place slide in 70% ethanol for 5 min.

 
 
Direct Wet Smear
Concentration
Permanent Stained Smear
Trichrome Stain
  Formulas
Quality Control
Proc: Mercury Based Fixatives
Proc: Non-Mercury Based Fixatives
Results and Reporting
Notes
Limitations