<p><strong>What Is Diarrhea? </strong></p>
<p>Acute diarrhea—the passage of frequent, loose, or watery stools—is not a disease itself but rather a symptom of an underlying disorder.</p>
<p>As food passes through the digestive system, its water content is normally absorbed through the wall of the large intestine. Diarrhea—and, at times, dehydration—results when fluid is not absorbed but remains in and is expelled with the fecal matter.</p>
<p>Although diarrhea usually subsides without treatment within two or three days, resulting dehydration can be serious and often requires prompt treatment.</p>
<p><strong>Who Gets Diarrhea? </strong></p>
<p>In more than 90 percent of cases, acute diarrhea is caused by infectious agents (e.g., viruses, bacteria, parasites) that are ingested in food and water. ...
Definition Campylobacter serology test is a blood test to look for antibodies to a bacteria called campylobacter. How the test is performed Blood is drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The health care provider wraps an elastic band around the upper arm to apply pressure to the area and make the vein swell with blood. Next, the health care provider gently inserts a needle into the vein. The blood collects into an airtight vial or tube attached to the needle. The elastic band is removed from your arm. Once the blood has been collected, the needle is removed, and the puncture site is covered to stop any bleeding. In infants or young children, a sharp tool called a lancet may be used to puncture the skin and make it bleed. The blood collects into a small glass tube called a pipette, or onto a slide or test strip. A bandage may be placed over the area if there is any bleeding. The sample is s...
The stool C. difficile toxin test detects harmful substances produced by the bacterium Clostridium difficile ( C. difficile) in a stool sample. This infection is a common cause of diarrhea after antibiotic use.
How the test is performed
A sample of a stool is submitted for laboratory analysis. There are several methods used to detect C. difficile toxin in the stool specimen.
Today, an enzyme immunoassay ( EIA ) is most often used to detect substances produced by the bacteria. The EIA is faster than previous culture tests, simpler to perform, and results are available in about an hour. However, it is slightly less sensitive than previous methods. Several stool samples may be needed to get an accurate result.
How to prepare for the test
There are many ways to collect the samples. You can catch the stool on plastic wrap that is loosely placed over the toilet bowl and held in place by the toilet seat. Then you put the sample in a clean container. One ...
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