negative results
Performance of the Amplicor human immunodeficiency virus type 1 PCR and analysis of specimens with false negative results
... these results, the Amplicor assay has a specificity of 100% and a sensitivity of ...serological results may not have been diagnostic because of placental transfer of maternal ...false negative on the ...
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FALSE POSITIVE AND FALSE NEGATIVE RESULTS IN URINE DRUG SCREENING TESTS: TAMPERING METHODS AND SPECIMEN INTEGRITY TESTS
... test results of abusers who use agents that are not similar to drug target (drug under detection of immunoassay kit) in conformational structure may become ...Positive results observed on immunoassay ...
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False negative results from using common PCR reagents
... MLVs previously found to be present in patient sam- ples have been observed at very low levels. Therefore we wanted to examine the inhibitory effect that minute levels of primer-dimer contamination (10 -7 dilution) can ...
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Teaching clinical informatics to third-year medical students: negative results from two controlled trials
... on negative results, we created SUMSearch(TM), an Internet site that automates searching for medical evidence by simultaneous meta-searching of MEDLINE and other ...
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Risky Traitor Tracing and New Differential Privacy Negative Results
... In this section, we give a brief overview of our technical approach. We start by discussing the definitional work. That is, we discuss existing traitor tracing definitions, mention their limitations and propose a ...
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Breast Cancer: The Accuracy of The Paus in Detecting pN2 and Factors that Lead to the True- and False-Negative Results
... study results and avoid ...false-negative results is increased. Therefore, in these cases, the results of the PAUS study should be evaluated more ...
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Key points: 1. Measuring risk metrics as the number and cost of false positive and negative results
... (percent negative agreement – PNA) are the most common metrics utilized, followed by the positive and negative predictive value (PPV and NPV), the probability that a positive or negative test result ...
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False Negative Results in Clostridium difficile Testing
... false negative results obtained in the subset of GeneXpert ...indeterminate results for tcdB GeneXpert ...as negative by the GeneXpert® assay ...these results are associated with ...
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"If it ain't broke, don't fix it": a commentary on the positive-negative results of the ACCORD Lipid study
... Direct testing of varying degrees of low density lipopro- tein cholesterol (LDL-C) lowering by using of active com- parators (statin vs. statin) has been tested in 4 large outcomes trials[5-8]: PROVE IT--TIMI 22, A to Z, ...
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Assessment of sputum smear-positive but culture-negative results among newly diagnosed pulmonary tuberculosis patients in Tanzania
... Abstract: Diagnosis of pulmonary tuberculosis (TB) in technology-limited countries is widely achieved by smear microscopy, which has limited sensitivity and specificity. The frequency and clinical implication of ...
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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] ...
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A Lamarckian Experiment Involving a Hundred Generations with Negative Results
... The method adopted therefore was to make periodical large-scale tests, in which a number of individuals of the experimental line with ancestral experience of re* generation were compared[r] ...
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Negative results associated with medicines and quality of life in multiple sclerosis
... Results found in this study demonstrated that people with MS have low levels of quality of life in most areas of the SF-36 scale. Both the physical symptoms, evaluated through the domains general health, ...
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False negative results in glaucoma detection with Heidelberg Retina Tomograph II
... or negative given the presence (sensitivity) or absence (specifi city) of disease (Jaeschke et al 1994; Gallagher 2003; Moons et al ...FN results relevant in daily ...
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MARKER STIMULATION OF CROSSING OVER: A TEST OF THE THEORY YIELDING NEGATIVE RESULTS AND USING rII MUTANTS OF PHAGE T4
... It is concluded that the general theory of marker stimulation of crossing over and its special case of formation of “recombinants” by internal suppression is insufficient a[r] ...
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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 in ...
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<p>Follow-Up CT Results of COVID-19 Patients with Initial Negative Chest CT</p>
... Four stages of lung involvement were defined in the analysis of the CT progression of COVID-19 patients: early stage (within 4 days after the initial symptom), progressive stage (5–8 days), peak stage (9–13 days), and ...
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Nucleic Acid Testing for Diagnosis of HIV in Cases of Negative or Uncertain Antibody-Based Testing Results in China and Abroad Diagnosis in Cases of HIV Antibody Negative or Uncertain
... “negative” results of HIV antibody-based testing methods should be questioned when HIV disease-related symptoms or opportunistic infections are present and/or when the patient is identified as being at high ...
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A Study of Genotyping for Management of Human Papillomavirus Positive, Cytology Negative Cervical Screening Results
... HPV-positive/cytology-negative results, the at- tendant risk is not quite high enough for immediate colposcopy (1, ...HPV-positive/cytology- negative results would more than double the number ...
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Prevalence of Negative Chest Radiography Results in the Emergency Department Patient With Decompensated Heart Failure
... and negative rate of radiographic findings were calculated under the assumption that every patient with a primary hospital dis- charge diagnosis of heart failure and positive radiographic findings of heart failure ...
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