Medical History and Physical Exam for GiardiasisExam OverviewA standard physical exam is usually done when giardiasis is suspected. Some doctors include a rectal exam. A stool analysis often is done to look for signs of the parasite. The stool sample can often be collected at home and then returned to the doctor for evaluation. The medical history will include questions about recent possible exposure, including:
Why It Is DoneThe medical history and physical exam are done to evaluate possible symptoms of giardiasis, especially persistent diarrhea. ResultsExcept for diarrhea and other gastrointestinal (GI) symptoms, results of the physical exam are generally normal for people who have giardiasis. But some weight loss [up to 10 lb (4.5 kg) or more] is common. Lab test results are usually normal. Blood levels of carotene (a form of vitamin A) and folic acid (a B vitamin) may be low. But these can be reversed quickly with treatment. Symptoms that are not typical of giardiasis may be caused by other intestinal infections or conditions. Depending on the specific symptoms and medical history, additional tests may be done to evaluate other possible causes of diarrhea. What To Think AboutSymptoms can start to occur long after exposure, so be sure to tell your doctor if you may have swallowed untreated water. Even very small amounts of untreated water can contain enough Giardia lamblia to cause infection. Exposure to Giardia lamblia through day care or nursing home employees may be more difficult to remember or link to the start of symptoms. Complete the medical test information form (PDF) (What is a PDF document?) to help you prepare for this test. Current as of: November 18, 2017 |
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