Laboratory tests check a sample of your blood, urine, or body tissues. A technician or your doctor analyzes the test samples to see if your results fall within the normal range. The tests use a range because what is normal differs from person to person. Many factors affect test results. These include:
- Your sex, age and race
- What you eat and drink
- Medicines you take
- How well you followed pre-test instructions
Your doctor may also compare your results to results from previous tests. Laboratory tests are often part of a routine checkup to look for changes in your health. They also help doctors diagnose medical conditions, plan or evaluate treatments, and monitor diseases.
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- Laboratory Tests (National Library of Medicine)Laboratory tests check a sample of your blood, urine, or body tissues. A technician or your doctor analyzes ... compare your results to results from previous tests. Laboratory tests are often part of a routine checkup to ...
- Laboratory Tests (Immune Deficiency Foundation)Laboratory tests that measure different parts of the immune system are important for diagnosing an individual with primary ...
- ... Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your provider about the ...
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- ... to Understand Your Lab Results What is a laboratory test? A laboratory (lab) test checks a sample of ... U.S. Department of Health and Human Services; Understanding Laboratory Tests; [updated 2013 Dec 11; cited 2022 Jul 25]; [ ...
- ... based on diagnoses (problem) codes, medication codes, and laboratory test codes. ... information based on diagnosis (problem) codes, medication codes, laboratory test codes , and medical procedure codes . When an EHR ...
- Tuberculosis in Children (Centers for Disease Control and Prevention)Learn how TB can affect children. ... Tuberculosis/Children ... Tuberculosis ... Centers for Disease Control and Prevention
- About Active Tuberculosis Disease (Centers for Disease Control and Prevention)Tuberculosis/Specifics ... Tuberculosis ... Centers for Disease Control and Prevention ... People with TB disease have a large amount of active TB germs in their body.
- Rheumatoid Vasculitis (Johns Hopkins Vasculitis Center)Vasculitis/Specifics ... Vasculitis ... Johns Hopkins Vasculitis Center
- Stupor and Coma (Merck & Co., Inc.)Coma/Start Here ... Coma ... Merck & Co., Inc. ... Stupor and Coma - Learn about the causes, symptoms, diagnosis & treatment from the Merck Manuals - Medical Consumer Version.
(College of American Pathologists) 