False-negative results from
False negative results from using common PCR reagents
... for false negative results needs to be considered and carefully controlled in PCR experiments, just as the potential for false positive results already ...
7
Radiographic and Clinical Characterization of False Negative Results from CT-Guided Needle Biopsies of Lung Nodules
... with false negative results was the size of the ...that false negatives tended to occur in larger lesions, a result noted ...lesion from sur- rounding atelectasis or ...
6
FALSE POSITIVE AND FALSE NEGATIVE RESULTS IN URINE DRUG SCREENING TESTS: TAMPERING METHODS AND SPECIMEN INTEGRITY TESTS
... of false-positive and false-negative ...metabolites, false negative and positive results may be created in some ...test results should be checked with a confirmatory ...
7
Breast Cancer: The Accuracy of The Paus in Detecting pN2 and Factors that Lead to the True- and False-Negative Results
... true- negative and false-negative results of the ultrasound ...96.5%. False-negative results of PAUS were ...and false-negative ...
9
Census and Analysis of Persistent False Negative Results in Serological Diagnosis of Human Immunodeficiency Virus Type 1 Group O Infections
... It was not possible to test all the samples with all the kits, making complete and objective comparison difficult, but it was nonetheless clear that some assays detected HIV-O infection much less efficiently than others. ...
6
False Negative Results in Clostridium difficile Testing
... any false negative samples that might have been missed by PCR ...of false negative samples compared to this ...a false negative ...the results was pro- vided by another ...
6
Screening Procedures for Neuroblastoma: False-Negative Results
... LaBrosse spot test: A practical aid in the diagnosis and management of children with neuroblastoma. Pediatrics, 47:913, 1971[r] ...
6
False negative results in glaucoma detection with Heidelberg Retina Tomograph II
... Our study was not approved by an ethic committee. Instrumentation The HRT II The HRT II is a confocal scanning laser ophthalmoscope that uses a 670 nm wavelength diode laser and therefore does not require dilation. The ...
6
Predictors of False Negative Results from Percutaneous Transthoracic Fine Needle Aspiration Biopsy: An Observational Study from a Retrospective Cohort
... of false-negative rates of percutaneous transthoracic ...The false- negative rate ...ous results, but is relatively high. Possible reasons for this high false-negative ...
9
CiteSeerX — Elimination of false negative results with the FPN Forrest test for phenothiazine derivatives in urine
... With the FPN Forrest test for urinary phenothiazine derivatives, omission of drug intake was found to be the most frequent cause of negative color reactions; accord- ingly, these negativ[r] ...
6
False-negative results of initial RT-PCR assays for COVID-19: A systematic review.
... the false- negative rate associated with RT-PCR at initial ...initial negative results of RT-PCR assays, with further confir- mation of SARS-Cov-2 infection with an additional RT-PCR within ...
19
Performance of the Amplicor human immunodeficiency virus type 1 PCR and analysis of specimens with false negative results
... allowed results to be generated within a day of receiving the blood ...No false-positive results were observed, as judged by serological findings and clinical ...mens from seropositive ...
8
Identification of Mycobacterium gordonae from culture by the Gen Probe Rapid Diagnostic System: evaluation of 218 isolates and potential sources of false negative results
... Identification of mycobacteria from culture by using the Gen- Probe rapid diagnostic system for Mycobacterium avium com- plex and Mycobacterium tuberculosis complex. de la Maza[r] ...
7
Mixed Mycobacterium tuberculosis Complex Infections and False Negative Results for Rifampin Resistance by GeneXpert MTB/RIF Are Associated with Poor Clinical Outcomes
... death from any ...assay results as rifampin resistant or rifampin ...and negative predictive value of the Xpert assay for detecting rifampin resistance using phenotypic DST as the reference ...assay ...
8
Assured Pregnancy Test False Negative
... test false negative pregnancy testing can be accurate blood pregnancy test package insert to wait a false ...pregnancy false negative results, and to prevent any other reasons ...
14
Key points: 1. Measuring risk metrics as the number and cost of false positive and negative results
... on False Results Figure 1 illustrates how increasing prevalence of true-positive samples impacts the probability that a positive test is false (PFP) and the probability of ...
24
False negative BRAF V600E mutation results on fine needle aspiration cytology of papillary thyroid carcinoma
... False-negative results were observed more often in old age with odds ratio ...mutation results, age should be consid- ered also. False-negative results come out much more ...
5
Isochromosome 21q is overrepresented among false-negative cellfree DNA prenatal screening results involving Down syndrome
... the results of our study will help clinicians and patients understand that the biology of cfDNA screening is ...complex. False-negative results can occur through mechanisms other than poor ...
Rapid diagnostic tests failing to detect Plasmodium falciparum infections in Eritrea: an investigation of reported false negative RDT results
... collected from the field nor those retained samples at SD Company resulted in positive bands for ...be negative for other plasmodium species as part of initial evidence and as recommended by Cheng et ...the ...
6
The Need for Vigilance: The Case of a False-Negative Newborn Screen for Cystic Fibrosis
... available from Colorado and ...ranged from 80.2% to 96.2%. 8–10,13 False-negative screening results have been attributed to labora- tory error and biological false- ...
6