A new colorful test for the detection of hidden blood in feces. K. Usami (Wien. k. Woch., 1926, no. 27)
R. Zach
Kazan medical journal ›› 1927, Vol. 23 ›› Issue (4) : 465 -465.
A new colorful test for the detection of hidden blood in feces. K. Usami (Wien. k. Woch., 1926, no. 27)
The author suggests the following method: take 5.0 of the test feces by eye, thoroughly grind it in a porcelain mortar with excess acetone and filter it, and the feces remaining on the filter is washed with acetone until almost discolored liquid flows out; after the acetone is squeezed with a pestle as much as possible, the feces is removed from the filter into another porcelain mortar, grinded with 20 cc. c. of a mixture of alcohol and glacial acetic acid (1 c. c. of acid to 1 c. c. of absol. alcohol), is filtered again, and 1 c. c. of the filtrate is poured into a mixture consisting of 1 c. of Leukomethyl-violett'a or Leukofuchsin with 2 drops of 3% hydrogen peroxide.
Zach R.
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