Related Experiment Video
Updated: Aug 11, 2026

Plunge Freezing: A Tool for the Ultrastructural and Immunolocalization Studies of Suspension Cells in Transmission Electron Microscopy
Published on: May 5, 2017
Effective chemical preservation of morphology of urinary erythrocytes
Olga Komarova1, Wim van der Meer, Elena Levtchenko
1Department of Pediatric Nephrology, Institute of Pediatrics, RAMN, Moscow, Russia.
Between 2 and 4 h after miction the morphology of urinary erythrocytes has changed, clouding the distinction between glomerular and non-glomerular bleeding in pediatric patients. Glomerular bleeding is characterized by microscopically visible alteration in urinary erythrocytes due to glomerular disease. Fixation by Cellfix, a formaldehyde-based fixative, allows the preservation of the morphology for at least 24 h and can be recommended for clinical practice. In our experience, thiomersal was not effective for preservation of the morphology of erythrocytes.
Between 2 and 4 h after miction the morphology of urinary erythrocytes has changed, clouding the distinction between glomerular and non-glomerular bleeding in pediatric patients. Glomerular bleeding is characterized by microscopically visible alteration in urinary erythrocytes due to glomerular disease. Fixation by Cellfix, a formaldehyde-based fixative, allows the preservation of the morphology for at least 24 h and can be recommended for clinical practice. In our experience, thiomersal was not effective for preservation of the morphology of erythrocytes.
More Related Videos
09:03Rapid Freezing using Sandwich Freezing Device for Good Ultrastructural Preservation of Biological Specimens in Electron Microscopy
Published on: July 19, 2021
14:05Morphological and Compositional Analysis of Neutrophil Extracellular Traps Induced by Microbial and Chemical Stimuli
Published on: November 4, 2022
Related Concept Videos
Preparation of Samples for Electron Microscopy
Urine: Physical and Chemical Properties
The concentration of these solutes varies, with urea being the most abundant nitrogenous waste product. Other solutes include sodium, chloride, potassium, phosphate,...
Urine Studies I: Urinalysis
Simple Staining Technique