Test kit and method for determining the presence of blood in a specimen and for testing the effectiveness of peroxidase inactivating solution
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United States of America Patent
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May 3, 1988
Grant Date -
N/A
app pub date -
Jan 16, 1984
filing date -
Jan 16, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A test kit for determining the presence of occult blood is disclosed which includes an improved monitor system having a reagent test area including a metal salt with an oxidation potential sufficient to catalyze a chromogen reaction in the guaiac impregnated paper when exposed to a peroxide developing solution. A peroxidase inactivating test area is provided for verifying the effectiveness of a peroxidase inactivating solution comprising guanidine hydrochloride and ethylenediaminetetraacetic acid. An improved method of testing occult blood is also disclosed wherein a peroxidase inactivating solution is applied to a monitor and a sample area just prior to application of the developing solution.
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