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The formol-ether concentration technique for intestinal parasites: comparing 0.1 N sodium hydroxide with normal
Jamsai Suwansaksri1, Suwannee Nithiuthai, Viroj Wiwanitkit
1Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand.
The Southeast Asian Journal of Tropical Medicine and Public Health
|September 16, 2003
Abstract:
The formol-ether method is a widely used technique for stool examination. We performed a comparative study of 0.1 N sodium hydroxide (NaOH) and normal saline preparation for the formol-ether technique in the detection of intestinal parasites. Of 30 parasite-containing stool samples, 22 (73%) were positive by 0.1 N NaOH and 18 (60%) were positive by normal saline. The detection rate of both preparations was not significantly different (p>0.05).