Cologuard did not detect altered DNA and/or blood in your stool, You're unlikely to have colorectal cancer, Cologuard detected altered DNA and/or blood in your stool, This could be due to precancerous growths, colorectal cancer, or some other reason, Its important to know that this is not the same as a cancer diagnosis, If your Cologuard test is positive and you are not experiencing symptoms, a colonoscopy is recommended to rule out cancer. How accurate is the Zestimate? Sometimes, healthy people get results outside the reference range, while people with health problems can have results in the normal range. Results that are far above or far below the reference range are an obvious indication that further investigation is needed. If you did not have symptoms at the time of your PCR nasal swab, you may return to work in 10 days (provided you do not have a fever 3 days prior to return to work). No test gives a 100% accurate result; tests need to be evaluated to determine their sensitivity and specificity, ideally by comparison with a gold standard. The lack of such a clear-cut gold-standard for covid-19 testing makes evaluation of test accuracy challenging. Washington D.C.: American Association for Clinical Chemistry; c20012018. During a recent visit to your health care providers office, you had blood drawn for lab tests and now you want to know if everything is okay. Youve received a copy of your lab report or an email telling you that your test results are available to view online. By clicking Accept All Cookies, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Standard range: negative, Flag A. Carboxy , conf. Anything above or below the range of values is abnormal. Component Results Component Your Value Standard Range If you need further explanation of your results, you should talk to your health care provider. Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Generally, these factors only come into play when the test value is slightly higher or lower than the reference range. Specificity is the proportion of patients without disease who have a negative test, or true negative rate.