Sentences with phrase «give false negative results»

Very early in the disease, the in - office test can give false negative results.

GER is difficult to diagnosis in infants and young children due to the fact that the few tests that are available to test for it are somewhat unreliable and often give false negative results.

Conventional testing for gluten sensitivity misses many important markers and can give you a false negative result.

This gives a false negative result.

Bear in mind that the antigen test often gives false negative results if there are fewer than four adult female worms in the dog's body.

However, dogs with less than 5 adult worms may not have enough antigen to produce a positive test result, giving a false negative result.

Sometimes this test gives false negative results, though, because the virus «hides» in the cells and is not presents in the blood itself.

Not exact matches

Because only about 16 in every 100,000 people end their own lives, a test with such a level of accuracy will give many false positive and false negative results if used on the general population.

Given the lack of mortality benefit of screening, and the moderate to substantial harms that could result from false - positive screeningtest results and subsequent surgery, the USPSTF concludes with moderate certainty that the harms of screening for ovarian cancer outweigh the benefit, and the net balance of the benefit and harms of screening is negative.

The documents also suggest that the officials knew that the Pasteur test was not ready for the market at this stage, because it was still giving too many false negative results.

«We don't really know the active ingredients; there can actually be something in a supplement that gives false positive or false negative results.»

A doctor can also fail to get enough of a tissue, blood, or urine sample or take a sample from the wrong place, perhaps giving a false - negative result when disease is present, explains David S. Wilkinson, MD, PhD, professor and chair of the department of pathology at Virginia Commonwealth University, in Richmond, Va., and chair of the quality - practice committee for the College of American Pathologists, which accredits U.S. and foreign labs.

A person can be born with an immunodeficiency or acquire it through: infection repeated antibiotic use steroid use (including steroid inhalers) disease malnutrition burns long - term, low - level demands increased immunoglobulin response as a side effect of different pharmaceuticals that can suppress the immune system An immunodeficiency could cause your test results to be inaccurate, giving a false negative.

So dogs with few or no mature female heartworms can give false - negative results.

However, little kittens may give a false negative test result for many months - even when they are infected.

This test can give false positive and false negative results.

This can give false negative test results on the Snap test.