Infectious Diseases: Tests & Diagnosis

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  • Strep Throat - Exams and Tests

    08/08/08, Healthwise

    Strep throat is diagnosed from your medical history, a physical examination of your throat, and a rapid strep test. A throat culture may sometimes be done to confirm the result of the rapid strep test or when your doctor suspects the rapi

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  • Rubella Test

    09/11/08, Healthwise

    A rubella blood test detects antibodies that are made by the immune system to help kill the rubella virus. These antibodies remain in the bloodstream for years. The presence of certain antibodies indicates a recent infection,

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  • Toxoplasmosis Test

    06/27/07, Healthwise

    A toxoplasmosis test is a blood test that checks for antibodies to the Toxoplasma gondiiparasite. Your body's natural defense system (immune system) will make these antibodies only if you have been infected by this tiny parasite. The amou

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  • West Nile Virus - Exams and Tests

    08/25/08, Healthwise

    West Nile virus causes an infection that can lead to inflammation of the brain (encephalitis), the spinal cord (myelitis), or the tissues surrounding it and the spinal cord (meningitis). If your doctor suspects a mosquito-borne illness, h

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  • Shingles - Exams and Tests

    03/21/07, Healthwise

    Doctors can usually identify shingles when they see an area of rash around the left or right side of your body. If a diagnosis of shingles is not clear, your doctor may order lab tests, most commonly herpes tests, on cells taken f

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  • Lyme Disease - Exams and Tests

    09/03/08, Healthwise

    Lyme disease may be hard to diagnose because its symptoms are like those of many other illnesses. Your doctor will take a careful medical history and do a physical examination to help diagnose early Lyme disease. You may be asked whether

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  • Measles (Rubeola) - Exams and Tests

    04/23/07, Healthwise

    Measles is most often diagnosed by a history of exposure to the disease, the presence of the characteristic rash, a fever higher than for 3 days or more, and other symptoms, including eye inflammation and chest congestion.

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  • Chickenpox (Varicella) - Exams and Tests

    05/21/08, Healthwise

    Chickenpox (varicella) usually can be diagnosed by the appearance of the chickenpox rash. For healthy children, describing the rash over the phone to a health professional (rather than visiting the office) may be all that is needed.

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