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Research paper | 01-August-2017

The false-positive responses of analgesic drugs to the intradermal serotonin- and compound 48/80-induced scratches as an animal model of itch

and give false positive results when standard analgesic drugs are used.

Fatih Ilkaya, Ozgur Yesilyurt, Melik Seyrek, Ozgur Gunduz, Tayfun Ide, Ahmet Akar, Ahmet Ulugol, Hasan Guzel, Ahmet Dogrul, Durmus Ucar, Caner Gunaydin

Acta Neurobiologiae Experimentalis, Volume 76 , ISSUE 3, 234–243

Article | 26-October-2020

Precipitation of serum proteins by polyethylene glycol (PEG) in  pretransfusion testing

Jack Hoffer, William P. Koslosky, Elizabeth S. Gloster, Therese M. Dimaio, Marion E. Reid

Immunohematology, Volume 15 , ISSUE 3, 105–107

Review | 09-October-2019

How to recognize and resolve reagentdependent reactivity: a review

Reagent-dependent reactivity can be described as agglutination of red blood cells (RBCs) in serologic testing that is not related to the interaction of RBC antigens and antibodies that the test system is intended to detect. In other words, reagent-dependent reactivity results in false-positive agglutination reactions in serologic testing. These false-positive reactions can cause confusion in antigen typing and RBC antibody detection and identification procedures, and may result in delays in

Gavin C. Patch, Charles F. Hutchinson, Nancy A. Lang, Ghada Khalife

Immunohematology, Volume 32 , ISSUE 3, 96–99

Letter | 16-May-2020

Letter to the Editors: HAMA (Human Anti-Mouse Antibodies) do not Cause False Positive Results in PAKPLUS

Leigh Ann Tidey, Suzette Chance, Marilyn Clarke, RH Aster, Miriam Fogg Leach

Immunohematology, Volume 20 , ISSUE 3, 190–192

Article | 01-June-2016

DETECTING SYBIL ATTACKS IN WIRELESS SENSOR NETWORKS USING SEQUENTIAL ANALYSIS

evidences by observing neighboring node activities. Further, the collected evidences are consolidated to provide input to the second stage. In the second stage, collected evidences are validated using the sequential probability ratio test to decide whether the neighbor node is Sybil or benign. The proposed method has been evaluated using the network simulator ns-2. Simulation results show that the proposed method is robust in detecting Sybil attacks with very low false positive and false negative rates.

P. Raghu Vamsi, Krishna Kant

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 2, 651–680

Report | 01-December-2019

Performance characteristics of two automated solid-phase red cell adherence systems for pretransfusion antibody screening:  a cautionary tale

samples run on the Galileo and samples tested by standard manual tube technique using low-ionic-strength saline enhancement showed a false-positive rate of 1.4 percent on the Galileo (defined as a positive screen with a negative panel). Testing using the Echo identified four cases of falsely negative antibody screens, (defined as a negative screen on a patient sample subsequently shown to be positive by the same method). In addition, we note a lack of reproducibility on the Echo, which emphasizes the

Karen Quillen, James Caron, Kate Murphy

Immunohematology, Volume 28 , ISSUE 4, 137–139

Article | 01-April-2020

External quality assessment scheme in red blood cell serology: a 5-year experience in Thailand

percent,mostly due to human errors. Error rates in D typing ranged from 0.7 to 5.7 percent, the most problematic being weak D phenotype interpretation. Although every sample was negative by the DAT, error rates due to false positive test results were determined to be 0.4 to 2.1 percent. Antibody screening errors were also found; however, errors steadily decreased from 4.2 percent in 2000 to 0.3 percent in 2004. Only 69.4 to 87.2 percent of laboratories performed antibody identification;however,correct

Sasitorn Bejrachandra, Jariya Saipin, Oytip Nathalang, Usanee Siriboonrit, Ekaraj Rungroung, Sudjai Udee

Immunohematology, Volume 22 , ISSUE 1, 1–5

Article | 03-November-2020

Comparison of gel technology and red cell affinity column technology in antibody detection

anti-D due to Rh immune globulin but missed one anti-Jka. ReACT missed one anti-D and one anti-Jkb. MTS-Gel detected one anti-I and one anti-H whereas ReACT detected two antiH but not anti-I. No false positive reactions were found by either method. Sensitivity based on this study for MTS-Gel is 93.3% and ReACT is 86.7%. Advantages for MTS-Gel included the small volume needed for testing, and the reaction was stable for 48 hours; for ReACT, there was less spin time and no special pipette was needed

Sauvai I. Chanfong, Sherri Hill

Immunohematology, Volume 14 , ISSUE 4, 152–154

Review | 25-September-2018

Pitfalls in ultrasound imaging of the stomach and the intestines

; therefore, this study focuses mainly on false positive errors which usually result from a lack of knowledge of anatomical variants of the gastrointestinal tract structure. In the case of the stomach, rugae and muscle layer thickening towards the pylorus have been mentioned, which constitute variants of the structure of this organ examined when empty. Diagnostic pitfalls in the small intestine may include the dudenojejunal flexure (ligament of Treitz), the horizontal part of the duodenum and the

Andrzej Smereczyński, Katarzyna Kołaczyk

Journal of Ultrasonography, Volume 18 , ISSUE 74, 207–211

Article | 01-March-2016

A NOVEL GRID INTERSECTION POINT DETECTION AND MATCHING METHOD IN THE BINOCULAR PULSE MEASUREMENT SYSTEM

distributions. To examine the detection performance of the proposed method, experiments have been conducted on actual and polluted images, respectively. The experimental results have demonstrated that the recognition ratio of the intersection points by the proposed ridge line fitting-based method is as high as 100%, the false positive ratio is 0 and the matching accuracy is up to 100%. Compared with the results obtained using traditional methods, the proposed method detection results are characterized by

L. M. Yang, A. H. Zhang, D. M. Lin, L. Zhu

International Journal on Smart Sensing and Intelligent Systems, Volume 9 , ISSUE 1, 256–273

original-paper | 27-March-2019

Interferon Gamma Release Assays in Patients with Respiratory Isolates of Non-Tuberculous Mycobacteria – a Preliminary Study

). The superiority of IGRAs over tuberculin skin test (TST) in LTBI diagnostic pathway, is related to its higher specificity, e.g. lack of false positive results in the populations vaccinated against M. tuberculosis and those infected with most of non-tuberculous mycobacteria (NTM) (Demkow 2011; Kuś et al. 2011; Mancuso et al. 2012). Nevertheless, some NTM, such as Mycobacterium kansasii, Mycobacterium marinum and Mycobacterium szulgai share RD1 with M. tuberculosis and could induce false positive

EWA AUGUSTYNOWICZ-KOPEĆ, IZABELA SIEMION-SZCZEŚNIAK, ANNA ZABOST, DOROTA WYROSTKIEWICZ, DOROTA FILIPCZAK, KARINA ONISZH, DARIUSZ GAWRYLUK, ELŻBIETA RADZIKOWSKA, DAMIAN KORZYBSKI, MONIKA SZTURMOWICZ

Polish Journal of Microbiology, Volume 68 , ISSUE 1, 15–19

Report | 01-December-2019

Identifying D-positive donors using a second automated testing platform

estimated the number of cases of alloimmunization in women younger than 50 years likely to be prevented by the addition of Galileo testing. From May 2011 to May 2012, 910,220 donor samples were tested; 15,441 were first-time donors with concordant D– results. Five donors tested D– on the PK7300 and weak D+ on the Galileo; one was found to be a false positive on further testing. On manual testing, the other four donors had positive indirect antiglobulin test results with one to three of the

Mindy Goldman, Ilona Resz, Jacqueline Cote, Gorka Ochoa, Nancy Angus

Immunohematology, Volume 29 , ISSUE 3, 97–100

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