Sentences with phrase «false negative results if»

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.

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.

Not exact matches

If you're very early in your pregnancy, than your hCG levels may not be high enough to be detected by a home pregnancy test, resulting in false negative pregnancy tests.

There can be false negative results especially if you made the test too early.

If nanoparticles are lost in the analytical apparatus, they are not detected, and a «false negative» result occurs.

After I wiped tears from my eyes, I realized that I should let her know that if she is going to get tested for celiac disease she should NOT be on a gluten - free diet before getting tested because it can produce a false negative result.

If the disease is in the final stages, there may no longer be antibodies circulating in the blood, hence a false - negative result.

Antigen testing is not as effective at detecting infection with adult worms < 5 months old and is unable to detect immature worm infections, male - only infections, and some infections with only one adult female worm.1 If the infection does not produce an adult worm, the worms are immature at the time of testing, or only male adult worms are present, a false - negative result may be obtained.

While false - negative results on the test are possible, it will usually tell you if your dog is PHA - positive.

However false negative results have been documented, and PCR testing is not recommended if a patient has been sick for more than four days.

Occasional false positive and negative results occur, so if an unexpected result is obtained a confirmatory test is usually performed.

If a striking clinic combined with negative serology exists, they should be retested due to the possibility of false - negative results.

And a false negative result might allow precancerous cells to develop into cancer if they are not detected in a future round of Pap testing.