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  Macroscopic

CONCENTRATION: Review

Topic Comments
Examination Low power examination (100X) of entire 22 x 22 coverslip preparation (iodine recommended, but optional); high dry power examination (400X) of at least 1/3 to 1/2 of the coverslip area (both saline and iodine).
Results and Laboratory Reports Often results from the concentration examination should be considered presumptive; however, some organisms could be definitely identified (Giardia lamblia cysts and Entamoeba coli cysts, helminth eggs and larvae, Isospora belli oocysts). These reports should be categorized as "preliminary" while the final report would be available after the results of the concentration and permanent stained smear were available.
 
  Microscopic
 
Direct Wet Smear
Concentration
Introduction
Formulas
Quality Control
Procedure
Results and Reporting
Procedure Notes
Procedure Limitations
Procedure Review
Tips and Pitfalls
Permanent Stained Smear