Clearing of fecal smears

Authors

  • Claúdio Santos Ferreira Universidade de São Paulo; Instituto de Ciências Biomédicas; Departamento de Parasitologia
  • Maria Esther de Carvalho Universidade de São Paulo; Instituto de Ciências Biomédicas; Departamento de Parasitologia

DOI:

https://doi.org/10.1590/S0034-89101972000100003

Keywords:

Fecal smears, Clearing, Refractive index, Absorptiometry

Abstract

Under the same conditions of turbidity (transmittance = 50%) the average amounts of feces per unit smear area are increased when diluents with high refractive indices are substituted for water. Such increments, calculated as factors, were on the average: 3.17 for 54% sucrose (n = 1.438); 1.95 for 50% glycerol (n = 1.411); and 1.50 for 30% sucrose (n = 1.385) aqueous solutions. Photoelectric absorptiometry was found adequate for evaluating the efficiency of fecal smear clearing processes.

Downloads

Published

1972-03-01

Issue

Vol. 6 No. 1 (1972)

Section

Original Articles

How to Cite

Ferreira, C. S., & Carvalho, M. E. de. (1972). Clearing of fecal smears . Revista De Saúde Pública, 6(1), 19-23. https://doi.org/10.1590/S0034-89101972000100003