| 摘要 |
<p>A fecal occult blood test device (1) capable of determining whether the blood found during the test originated in the upper or lower gestrointestinal track. A fecal sample (40) is applied to a test medium (20) charged to be differentially attractive to blood components originating in the upper and lower gastrointestinal track, respectively. A solvent (50) is applied to the test specimen (40) to cause differential migration of the blood components and an indicator is then applied to indicate the presence of the blood components, if any.</p> |
