What is a false negative test?

Testing on any type of health has a certain degree of inaccuracy. Regardless of the test, sometimes patients will have a false result, suggesting that they have a condition if not. Alternatively, the test can lead to a false negative negative, where the test does not return the positive result it should. Although false positive tests can lead to the treatment of a condition that is not present, a false negative test may be more serious in certain circumstances because people may not be the necessary medical care.

There are many potential reasons why a false negative test could occur, and these reasons depend on the type of test performed. Sometimes the problem is the size of the sample collection - there was simply not enough blood, urine or tissue to make the test exactly. At other times, the test is performed too early and regardless of the condition, it did not have enough time to create results that would indicate positive testing. Very early pregnancy tests and early HIV testing can bring false negatives. MOHO ResultsU be re -checked, especially with HIV, a few months later to ensure that the result was not a false negative test.

different forms of testing dictate what a predictable result for a particular test is. The blood test can be examined by a specific enzyme, protein or hormone. If this is not found, the test could bring a false negative test result, because sometimes patients who show the condition lack symptoms that are designed to capture. For example, some pregnant women have low HCG levels until their pregnancy, which could bring many false results. When pregnancy is diagnosed with other means such as ultrasound, it also causes concerns about the health of pregnancy and fetus.

The possibility that atypical reaction brings a false negative test leads to various methods of backed buying or a number of diagnostic criteria. Instead of relying only on themDiný test has different ways to seek and diagnose the disease. For example, ultrasound can confirm pregnancy when the results of blood tests do not. This backup testing is useful, but is not available with any disease or condition, or the diagnosis may not be available until the condition has advanced after a certain phase. There are plenty of false negative papers' results, but the diagnosis of cervical cancer soon by other means can be demanding.

Most patients receiving a medical test get accurate results. Those who fear the result may ask about the accuracy of the test. If they receive the results they believe to represent false negative, they could continue with the doctor. Sometimes simply repeating the test is enough to determine whether it was really accurate.