keyword
MENU ▼
Read by QxMD icon Read
search

POCT

keyword
https://www.readbyqxmd.com/read/28220976/evaluation-of-a-new-hemoglobin-a1c-analyzer-for-point-of-care-testing
#1
Rui Zhou, Wei Wang, Zhi-Xin Song, Qing Tong, Qing-Tao Wang
BACKGROUND: There has been an increasing desire for the use of point-of-care testing (POCT) by both primary care clinicians and patients. This study aimed to evaluate the performance of a new POCT analyzer for hemoglobin A1c (HbA1c) testing. METHODS: We assessed the accuracy, precision, and linearity of the POCT HbA1c analyzer (A1C EZ 2.0) with the Tosoh G8 Analyzer as comparative instrument, following the Clinical and Laboratory Standards Institute (CLSI) protocols...
February 21, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28196509/point-of-care-testing-for-emergency-assessment-of-coagulation-in-patients-treated-with-direct-oral-anticoagulants
#2
Matthias Ebner, Ingvild Birschmann, Andreas Peter, Charlotte Spencer, Florian Härtig, Joachim Kuhn, Gunnar Blumenstock, Christine S Zuern, Ulf Ziemann, Sven Poli
BACKGROUND: Point-of-care testing (POCT) of coagulation has been proven to be of great value in accelerating emergency treatment. Specific POCT for direct oral anticoagulants (DOAC) is not available, but the effects of DOAC on established POCT have been described. We aimed to determine the diagnostic accuracy of Hemochron® Signature coagulation POCT to qualitatively rule out relevant concentrations of apixaban, rivaroxaban, and dabigatran in real-life patients. METHODS: We enrolled 68 patients receiving apixaban, rivaroxaban, or dabigatran and obtained blood samples at six pre-specified time points...
February 15, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28189070/paper-based-microfluidic-devices-for-electrochemical-immunofiltration-analysis-of-human-chorionic-gonadotropin
#3
Liangli Cao, Cheng Fang, Ruosheng Zeng, Xiongjie Zhao, Yuren Jiang, Zhencheng Chen
An electrochemical immunofiltration analysis was introduced into microfluidic paper-based analytical devices (μPADs) for the first time, which was based on photolithography and screen-printing technology. The hydrophilic test zones of the aldehyde-functionalized screen-printed electrodes (SPEs) were biofunctionalized with capture antibodies (Ab1). A sensitive immune detection method was developed by using primary signal antibody functionalized gold nanoparticles (GNPs/Ab2) and alkaline phosphatase conjugated secondary antibody (ALP-IgG)...
February 2, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28173654/-clinical-value-of-a-rapid-respiratory-syncytial-virus-antigen-detection-in-point-of-care-testing
#4
Y X Ding, R Tian, Y Qian, Y Sun, J Deng, F Wang, R N Zhu, L Q Zhao
Objective: To evaluate the clinical value of a rapid respiratory syncytial virus (RSV) antigen detection in point-of-care testing (POCT). Method: A total of 209 specimens, including 78 throat swabs (TS) and 131 nasopharyngeal aspirates (NPAs), were collected from inpatients who visited the Children's Hospital Affiliated to the Capital Institute of Pediatrics and were diagnosed as acute respiratory infection from 5 January to 7 February, 2015. These specimens were tested for RSV by a rapid antigen detection kit which was compared with reverse transcription polymerase chain reaction (RT-PCR) and direct immunofluorescence assay (DFA) for RSV detection...
February 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28166743/molecular-point-of-care-testing-for-respiratory-viruses-versus-routine-clinical-care-in-adults-with-acute-respiratory-illness-presenting-to-secondary-care-a-pragmatic-randomised-controlled-trial-protocol-respoc
#5
Nathan J Brendish, Ahalya K Malachira, Tristan W Clark
BACKGROUND: Respiratory viruses are associated with a huge socio-economic burden and are responsible for a large proportion of acute respiratory illness in hospitalised adults. Laboratory PCR is accurate but takes at least 24 h to generate a result to clinicians and antigen-based point-of-care tests (POCT) lack sensitivity. Rapid molecular platforms, such as the FilmArray Respiratory Panel, have equivalent diagnostic accuracy to laboratory PCR and can generate a result in 1 h making them deployable as POCT...
February 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28164652/validation-of-two-calprotectin-rapid-tests-in-daily-routine
#6
Christian Schulz, Thomas Wex, Ulrike von Arnim, Peter Malfertheiner
BACKGROUND: The differentiation of organic and functional intestinal diseases and monitoring of disease activity in inflammatory bowel diseases are frequent challenges in daily clinical routine. Fecal calprotectin is a noninvasive screening marker for intestinal inflammation. Its quantification by ELISA is considered to be the gold standard, but an increasing number of semiquantitative and quantitative point-of-care-tests (POCT) have been launched to optimize the duration between sample input and result...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164644/evaluation-of-the-performance-of-two-point-of-care-analyzers-for-total-cholesterol-triglyceride-and-high-density-lipoprotein-cholesterol-analysis
#7
Hyunjung Kim, Yeongsic Kim, Joonhong Park, Hae-Il Park, Seungok Lee, Myungshin Kim, Yonggoo Kim, Soyoung Shin
BACKGROUND: In this study, we evaluated the analytic performance of two POCT devices and compared the results with a central laboratory method. METHODS: A total of 100 patients were enrolled in this study. LipidPro (Infopia, USA) and LandMark (Infopia, Korea), were used for measuring total cholesterol (TC), triglyceride (TG), and high density lipoprotein cholesterol (HDL-C). Imprecision and linearity were assessed and the results of two POCT analyzers were compared with a central laboratory method...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164491/testing-for-soluble-st2-in-heart-failure-patients-reliability-of-a-point-of-care-method
#8
Damien Gruson, Benjamin Ferracin, Sylvie A Ahn, Michel F Rousseau
BACKGROUND: Our objective was to determine soluble ST2 (sST2) concentrations in heart failure (HF) patients with a point-of-care (POCT) assay. METHODS: sST2 levels were measured in 71 HF patients with both POCT and ELISA methods. The concentrations of sST2 were correlated to HF severity and to some established biomarkers of cardiovascular risk. RESULTS: sST2 levels measured with the ASPECT-PLUS POCT method were significantly correlated with the comparison ELISA assay (r = 0...
January 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28161128/point-of-care-testing-improves-diabetes-management-in-a-primary-care-clinic-in-south-africa
#9
Lara A Motta, Mark D S Shephard, Julie Brink, Stefan Lawson, Paul Rheeder
INTRODUCTION: Diabetes is a major health problem in South Africa. DiabCare Africa found just 47% of diabetes patients had a hemoglobin A1c (HbA1c) test for their management in the previous year. METHODS: Patients attending an urban diabetes clinic near Johannesburg, run by Project HOPE, accessed HbA1c (and urine albumin:creatinine ratio) point-of-care testing (POCT) as part of a quality-assured international program called ACE (Analytical and Clinical Excellence)...
February 1, 2017: Primary Care Diabetes
https://www.readbyqxmd.com/read/28160728/point-of-care-testing-poct-in-molecular-diagnostics-performance-evaluation-of-genexpert-hcv-rna-test-in-diagnosing-and-monitoring-of-hcv-infection
#10
Ekta Gupta, Pragya Agarwala, Guresh Kumar, Rakhi Maiwall, Shiv Kumar Sarin
BACKGROUND: Molecular testing at the point-of-care may turn out to be game changer for HCV diagnosis and treatment monitoring, through increased sensitivity, reduced turnaround time, and ease of performance. One such assay GeneXpert(®) has recently been released. OBJECTIVES: Comparative analysis between performances of GeneXpert(®) and Abbott HCV-RNA was done. STUDY DESIGN: 174 HCV infected patients were recruited and, one time plasma samples from 154 patients and repeated samples from 20 patients, obtained at specific treatment time-points (0, 4, 12 and 24) weeks were serially re-tested on Xpert(®)...
March 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28159916/impact-of-deploying-multiple-point-of-care-tests-with-a-sample-first-approach-on-a-sexual-health-clinical-care-pathway-a-service-evaluation
#11
Emma M Harding-Esch, Achyuta V Nori, Aseel Hegazi, Marcus J Pond, Olanike Okolo, Anthony Nardone, Catherine M Lowndes, Phillip Hay, S Tariq Sadiq
OBJECTIVES: To assess clinical service value of STI point-of-care test (POCT) use in a 'sample first' clinical pathway (patients providing samples on arrival at clinic, before clinician consultation). Specific outcomes were: patient acceptability; whether a rapid nucleic acid amplification test (NAAT) for Chlamydia trachomatis/Neisseria gonorrhoeae (CT/NG) could be used as a POCT in practice; feasibility of non-NAAT POCT implementation for Trichomonas vaginalis (TV) and bacterial vaginosis (BV); impact on patient diagnosis and treatment...
February 3, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28156092/highly-reproducible-au-decorated-zno-nanorod-array-on-a-graphite-sensor-for-classification-of-human-aqueous-humors
#12
Wansun Kim, Soo Hyun Lee, Sang Hun Kim, Jae-Chul Lee, Sang Woong Moon, Jae Su Yu, Samjin Choi
Gold-decorated, vertically grown ZnO nanorods (NRs) on a flexible graphite sheet (Au/ZnONRs/G) were developed for surface-enhanced Raman scattering (SERS)-based biosensing to identify trace amounts of human aqueous humors. This Au/ZnONRs/G SERS-functionalized sensor was fabricated via two steps: hydrothermal synthesis-induced growth of ZnO NRs on graphite sheets for nanostructure fabrication, followed by e-beam evaporator-induced gold metallization on ZnONRs/G for SERS functionalization. The thickness of the Au layer and the height of the ZnO NRs for enhancing SERS performance were adjusted to maximize Raman intensity, and the optimized Au/ZnONRs/G nanostructures were verified by the electric finite element computational models to maximize the electric fields...
February 3, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28151978/development-and-evaluation-of-up-converting-phosphor-technology-based-lateral-flow-assay-for-quantitative-detection-of-nt-probnp-in-blood
#13
Xiaoli Yang, Liping Liu, Qingfang Hao, Deyong Zou, Xiaoli Zhang, Liping Zhang, Hongmei Li, Yong Qiao, Huansheng Zhao, Lei Zhou
A newly assay, up-converting phosphor technology-based lateral flow (UPT-LF) assay, was developed for rapid and quantitative detection of N-terminal fragment of B-type natriuretic peptide precursor (NT-proBNP), one of the most important serum molecular maker of heat failure, in plasma samples as a point of care testing (POCT) method for diagnosis of acute heart failure. Human plasma from 197 patients with acute heart failure and 200 healthy controls was assessed using the UPT-LF assay, in a comparison with a Roche Elecsys assay...
2017: PloS One
https://www.readbyqxmd.com/read/28137314/performance-of-point-of-care-urine-test-in-diagnosing-tuberculosis-suspects-with-and-without-hiv-infection-in-selected-peripheral-health-settings-of-addis-ababa-ethiopia
#14
Selam Niguse Sahle, Dereje Teshome Asress, Kassu Desta Tullu, Atsebeha Gebrezgeaxier Weldemariam, Habteyes Hailu Tola, Yodit Alemayehu Awas, Gebremdihin Gebremichael Hagos, Muluwork Getahun Worku, Desta Kassa Misgina
BACKGROUND: There are few rapid point-of-care tests (POCT) for tuberculosis (TB) for use in resource-constrained settings with high levels of human immunodeficiency virus (HIV). This hinders early tuberculosis (TB) treatment. This cross-sectional study evaluates the recently developed urine Determine tuberculosis lipoarabinomannan (TB LAM) antigen test. A total of 122 participants with signs and symptoms of TB, including 21 (17.1%) participants positive for HIV, were enrolled from September 2011 to March 2012 at three selected health centers in Addis Ababa, Ethiopia...
January 31, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28135840/annals-express-a-systematic-evaluation-of-immunoassay-point-of-care-testing-to-define-impact-on-patients-outcomes
#15
Valentina Pecoraro, Giuseppe Banfi, Luca Germagnoli, Tommaso Trenti
BACKGROUND: Point of Care testing (POCT) has been developed to provide rapid test results. Most published studies focus on analytical performance, neglecting its impact on patient outcomes. OBJECTIVE: To review the analytical performance and accuracy of POCT specifically planned for immunoassay, and to evaluate the impact of faster results on patient management. METHODS: A search of electronic databases for studies reporting immunoassay results obtained in both POCT and central laboratory scenarios was performed...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28134944/a-computational-streak-mode-cytometry-biosensor-for-rare-cell-analysis
#16
Miguel Ossandon, Joshua Balsam, Hugh Alan Bruck, Konstantinos Kalpakis, Avraham Rasooly
Streak mode imaging flow cytometry for rare cell detection involves imaging moving fluorescently labeled cells in the video mode with a CCD camera. The path of the moving cells results in a "streak", whose length is proportional to the exposure time. The dynamic imaging conditions introduce detection challenges (e.g., images with high signal-to-noise ratio (SNR) backgrounds), especially for enumerating cells using low resolution webcams or smartphone cameras suitable for point of care testing (POCT). To overcome the imaging challenges, a new approach called a "computational biosensor" was developed...
January 30, 2017: Analyst
https://www.readbyqxmd.com/read/28132946/laboratory-medicine-and-poct-an-appointment-not-to-be-missed
#17
Marc Delpech, Joëlle Goudable, Michel Vaubourdolle
No abstract text is available yet for this article.
February 1, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/28125965/microbiological-point-of-care-testing-before-antibiotic-prescribing-in-primary-care-considerable-variations-between-practices
#18
Steffen Haldrup, Reimar W Thomsen, Flemming Bro, Robert Skov, Lars Bjerrum, Mette Søgaard
BACKGROUND: Point-of-care testing (POCT) in primary care may improve rational antibiotic prescribing. We examined use of POCT in Denmark, including patient- and general practitioner (GP)-related predictors. METHODS: We linked nationwide health care databases to assess POCT use (C-reactive protein (CRP), group A streptococcal (GAS) antigen swabs, bacteriological cultures, and urine test strips) per 1,000 overall GP consultations, 2004-2013. We computed odds ratios (OR) of POCT in patients prescribed antibiotics according to patient and GP age and sex, GP practice type, location, and workload...
January 26, 2017: BMC Family Practice
https://www.readbyqxmd.com/read/28122829/qualitative-study-of-primary-care-clinicians-views-on-point-of-care-testing-for-c-reactive-protein-for-acute-respiratory-tract-infections-in-family-medicine
#19
Victoria Hardy, Matthew Thompson, Gina A Keppel, William Alto, M Ashworth Dirac, Jon Neher, Christopher Sanford, Jaime Hornecker, Allison Cole
OBJECTIVE: To explore clinicians views of the barriers and facilitators to use of C-reactive protein (CRP) point-of-care tests (POCT) in US family medicine clinics for the management of acute respiratory tract infections (ARTIs) in adults. SETTING: Five family medicine clinics across two US states. PARTICIPANTS: 30 clinicians including 18 physicians, 9 physician residents, 2 physician assistants and 1 nurse practitioner, took part in the study...
January 25, 2017: BMJ Open
https://www.readbyqxmd.com/read/28102586/creatinine-in-urine-a-method-comparison
#20
Marc Luginbühl, Wolfgang Weinmann
Drug screening in urine is widely applied in forensic toxicology. Contrary to blood analysis, excessive or reduced fluid intake can substantially alter the concentration of substances in urine. As a standard to detect urinary dilution, creatinine concentrations are analyzed. A sample with a concentration below 20 mg/dL is generally defined as too diluted to provide a valid result in abstinence control samples. This work investigates the potential of three different methods for the determination of creatinine concentrations in urine samples: A ZIC-HILIC based LC-MS/MS method, a spectrophotometric method on an AU 480 chemistry system, and a portable, immunoassay based point-of-care testing device was compared by measuring 200 urine samples...
January 19, 2017: Drug Testing and Analysis
keyword
keyword
90095
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"