Sentences with phrase «with false negative results»

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.

Health authorities say the number of false negative results from the tests is probably small but AIDS hotlines were jammed last week with inquiries from people worried by the implications.

When the results were compared with studies in the literature using standard radiocolloid tracers the researchers found that the SN biopsy using tilmanocept provided a high identification rate and low false negative rate for SNs, thus facilitating accurate prediction of the spread of the cancer.

«New tests are more exact and are not as susceptible to the same false - positive or false - negative results associated with current tests,» said Schutzer.

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 technology successfully detected the cancer cells with less than 1 percent incidence of false - negative results.

Follow - up interviews were obtained from 1,028 of the women (534 with negative results, 494 with false - positive results).

After adjusting for common factors that influence breast cancer risk, Henderson and colleagues found that women whose mammograms were classified as false - positive who were referred for additional imaging had a 39 percent increased chance of developing subsequent breast cancer during the 10 - year follow - up period, compared with women with a true - negative result.

Women whose mammograms were classified as false - positive but were referred for a breast biopsy had a 76 percent increased chance of developing subsequent breast cancer compared with women with a true - negative result.

The problem with other testing is it's very easy to have false negative result.

Women with denser breasts tend to be younger, healthier women, which means healthier women are actually at an increased risk of getting a false result — either a false positive or false negative.

At her first OBGYN appointment for her pregnancy, this woman and her husband may be surprised to learn that she was already 10 weeks pregnant, with the previous results having been what is called a false negative pregnancy test.

You may otherwise get a false negative result, especially with candida, bacteria and parasites.

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.

What we have now does not look like a false negative but rather a very poorly designed program in Louisiana with the release of a new study on the first year results.

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

For years, I evaluated and diagnosed pets with in - house fecal flotation with centrifugation but always saw variability in my test results, misdiagnosis of parasites, and false negative results.

False negative or false positive results are possible with a marker False negative or false positive results are possible with a marker false positive results are possible with a marker test.

«False negative» results are also possible with testing as the virus can be hard to find in some pets.

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.

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

Diagnosis of canine dirofilariosis in animals which originate from a low - endemic region is difficult for 3 main reasons: 1) possible absence of circulating microfilariae (occult disease), 2) high frequency of a low number of adults, which in turn produces false negative results, using either ELISA or latex agglutination test, 3) possible false sero - positive results, due to cross-reaction with adult antigens of Dirofilaria (Nochtiella) repens (Schrey, 1996), the agent of subcutaneous dirofilariasis causing chronic pruritic dermatitis in dogs (Tarello, 1999).

IDEXX claims that the Spec cPL test has a sensitivity greater than 95 percent, meaning almost every dog with pancreatitis will test positive (fewer than 5 percent false negatives), and a specificity also greater than 95 percent, meaning fewer than 5 percent of dogs who don't have pancreatitis will have a false positive result.

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

The government's avowed determination to eradicate myths about supposedly true victim behaviour, in spite of there being no UK research evidence of a negative impact by such myths on the conviction rate, makes a stark contrast with their apparent insouciance about the potentially negative impact on the conviction rate as a cumulative result of potential jurors reading lurid media accounts of the exposure of false rape claims.