Plasmalyte: No Longer a Culprit in Causing False-Positive Galactomannan Test Results

False-positive galactomannan (GM) results have been reported in patients treated with gluconate-containing solutions, such as Plasmalyte. The GM optical density index was tested on 33 distinct batches of Plasmalyte and was found to be negative in all of the batches, confirming that Plasmalyte is no longer a cause of false-positive GM results.

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Composition of organic-mineral complexes (OMC) migrating in the reclaimed sod-podzolic soils (Umbric Albeluvisol Abruptic)

E3S Web of Conferences ◽

10.1051/e3sconf/202022404012 ◽

2020 ◽

Vol 224 ◽

pp. 04012

Author(s):

A V Litvinovich ◽

O Yu Pavlova ◽

A V Lavrishchev ◽

A. A. Belimov

Keyword(s):

Carbon Content ◽

Optical Density ◽

Fulvic Acids ◽

Soil Minerals ◽

Destructive Effect ◽

Podzolic Soils ◽

Organic Mineral ◽

Density Index ◽

Optical Density Index ◽

Range Of Values

The composition of organo-mineral complexes (OMC) migrating from the arable horizon limed by Umbric Albeluvisol Abruptic was studied. The carbon content in organic-mineral complexes (OMC) ranged from 5.5 to 5.7%. The optical density index (Esmg/ml) varied in the range of values from 2.7 to 3.1, characteristic for fulvic acids (FA). It was established that FAs averaged with bases retain the ability to exert a destructive effect on soil minerals, transferring a significant amount of Al, Mn, and Fe into solution. According to their ability to migrate as part of OMC, the elements studied in the experiment with dolomite particles at a dose of 7.35 t/ha were arranged in the following decreasing sequence: Mn > Al > Fe. In the experiment with conversion chalk (CC) at a dose of 20.25 t/ha, this sequence was Al > Mn > Fe.

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Optical density of bone tissue in the dynamics of therapy of professionally caused osteopathies of the shoulder joint

Russian Journal of Occupational Health and Industrial Ecology ◽

10.31089/1026-9428-2019-59-9-620-621 ◽

2020 ◽

pp. 620-620

Author(s):

V. N. Druzhinin ◽

V. G. Suvorov ◽

A. E. Shelekhova

Keyword(s):

Bone Tissue ◽

Optical Density ◽

Bone Mineral ◽

Shoulder Joint ◽

Primary Diagnosis ◽

Density Index ◽

Optical Density Index

Optical density index can be a criterion of bone mineral saturation, both at the stage of primary diagnosis and in the dynamics of observation of patients with shoulder periarthrosis and osteoarthritis of the shoulder joint.

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State of Alaska Epidemiology Bulletin: False positive laboratory test results for measles-- Some disease actually parvovirus B19

PsycEXTRA Dataset ◽

10.1037/e454242008-001 ◽

1994 ◽

Keyword(s):

Laboratory Test ◽

False Positive ◽

Parvovirus B19 ◽

Test Results ◽

Laboratory Test Results

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RISK FACTORS FOR FALSE-POSITIVE AND FALSE-NEGATIVE FECAL IMMUNOCHEMICAL TEST RESULTS IN COLORECTAL CANCER SCREENING: SYSTEMATIC REVIEW AND META-ANALYSIS

10.1055/s-0038-1637308 ◽

2018 ◽

Author(s):

CM de Klerk ◽

LM Vendrig ◽

PM Bossuyt ◽

E Dekker

Keyword(s):

Colorectal Cancer ◽

Risk Factors ◽

Systematic Review ◽

Cancer Screening ◽

Colorectal Cancer Screening ◽

False Positive ◽

Meta Analysis ◽

False Negative ◽

Test Results ◽

Immunochemical Test

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False-positive fecal immunochemical test results in colorectal cancer screening and gastrointestinal drug use

International Journal of Colorectal Disease ◽

10.1007/s00384-021-03947-1 ◽

2021 ◽

Author(s):

M. J. Domper Arnal ◽

S. García Mateo ◽

S. Hermoso-Durán ◽

D. Abad ◽

P. Carrera-Lasfuentes ◽

...

Keyword(s):

Colorectal Cancer ◽

Cancer Screening ◽

Drug Use ◽

Colorectal Cancer Screening ◽

False Positive ◽

Fecal Immunochemical Test ◽

Test Results ◽

Immunochemical Test

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The Magnitude and Challenge of False-Positive Newborn Screening Test Results

Archives of Pediatrics and Adolescent Medicine ◽

10.1001/archpedi.154.7.714 ◽

2000 ◽

Vol 154 (7) ◽

pp. 714 ◽

Cited By ~ 75

Author(s):

Charles Kwon ◽

Philip M. Farrell

Keyword(s):

Newborn Screening ◽

False Positive ◽

Screening Test ◽

Test Results

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Three Years of Experience With Random Urinary Homovanillic and Vanillylmandelic Acid Levels in the Diagnosis of Neuroblastoma

PEDIATRICS ◽

10.1542/peds.79.2.203 ◽

1987 ◽

Vol 79 (2) ◽

pp. 203-205

Author(s):

Mendel Tuchman ◽

Margaret L. R. Ramnaraine ◽

William G. Woods ◽

William Krivit

Keyword(s):

False Positive ◽

Homovanillic Acid ◽

False Negative ◽

False Negative Rate ◽

Urine Samples ◽

Vanillylmandelic Acid ◽

Test Results ◽

Upper Limit ◽

Positive Results ◽

Rule Out

During the last 3 years, random urine samples from 408 patients were tested for elevated homovanillic acid (HVA) and vanillylmandelic acid (VMA) levels to rule out the diagnosis of neuroblastoma. Thirty-seven of these patients had elevated HVA and/or VMA levels, and neuroblastoma was subsequently diagnosed. In three additional patients with negative test results (normal HVA and VMA levels), tumors were subsequently diagnosed (false-negative rate of 7.5%). Ten percent of the patients with neuroblastoma had normal HVA and 27.5% had normal VMA levels at the time of diagnosis. Only one patient (2.5%) with neuroblastoma had elevated VMA levels in the presence of normal HVA levels. More than 60% of the patients with neuroblastoma had urinary HVA and/or VMA levels higher than twice the upper limit of normal. No false-positive results were encountered. Age and stage distributions of the patients are shown, and the significance of the results is discussed.

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