how is d dimer test performed quality using method

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  • DIMER - Performance: D-Dimer, Plasma

    Method DescriptionDescribes how the test is performed and provides a method-specific reference. The D-dimer assay is performed using the HemosIL D-Dimer HS 500 kit on the Instrumentation Laboratory ACL TOP instrument. D-dimer is assayed in plasma by adding polystyrene latex particles coated with monoclonal antibodies specific for D-dimer domain.

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  • d-Dimer Testing in Laboratory Practice | Clinical ...

    2014-10-23 · D-Dimer HS 500 Controls are assayed human-sourced controls intended for the quality control of the HemoslL D-Dimer HS 500 assay as performed on the ACL TOP Family Systems, in a clinical laboratory...

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  • intended for the quality control of the HemosIL D-Dimer

    2017-4-26 · The process of measuring D-dimer can be conceptually divided into two steps: (i) D-dimer fragments must be captured by monoclonal antibodies, and (ii) the D-dimer plus monoclonal antibodies must be detected and quantified.

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  • D Dimer Blood Test - Accuracy, Purpose, Procedure,

    Patients with a normal D-dimer concentration were discharged without anticoagulant treatment and followed for 3 mo. The prevalence of PE was 29%, and D-dimer (using a cutoff of 500 micrograms/L) had a diagnostic sensitivity for PE of 99.5%. Overall diagnostic specificity of D-dimer was 41%, but it was lower among older patients.

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  • The D-Dimer Test: What You Should Know - Verywell

    A study was undertaken to compare a clinician-performed qualitative D-dimer assay with the automated quantitative D-dimer test. Methods: A prospective observational study was conducted from January to October 2005 at an urban academic emergency department (ED). 1193 patients of mean (SD) age 47 (16) years (66% female) were enrolled.

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  • Review of D‐dimer testing: Good, Bad, and Ugly -

    D-dimers are formed by the breakdown of fibrinogen and fibrin during fibrinolysis. D-dimer analysis is critical for the diagnosis of deep vein thrombosis, pulmonary embolism, and disseminated intravascular coagulation. Modern assays for D-dimer are monoclonal antibody based. The enzyme-linked immunosorbent assay (ELISA) is the reference method for ...

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  • D-dimer testing for suspected pulmonary embolism in ...

    2021-6-10 · A D-dimer test looks for D-dimer in blood. D-dimer is a protein fragment (small piece) that's made when a blood clot dissolves in your body. Blood clotting is an important process that prevents you from losing too much blood when you are injured. Normally, your body will dissolve the clot once your injury has healed.

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  • intended for the quality control of the HemosIL D-Dimer

    2014-10-23 · To obtain clearance of a modified assayed control materials intended for the quality control of the HemosIL D-Dimer HS 500 assay as performed on the ACL TOP Family Systems. C. Measurand: D-dimer fragment of fibrin D. Type of Test: Latex based immunoturbidimetric assay E. Applicant: Instrumentation Laboratory, Inc.

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  • The association of D-dimer with clinicopathological ...

    2019-9-5 · After stratification using the D-dimer test, nine articles evaluating a healthy control group were divided into three subgroups. Using a random effects model, the total effect rate showed that the D-dimer level was significantly higher in the breast cancer group (SMD = 1.27; 95% CI = 0.85–1.68; P < 0.00001) ( …

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  • D-Dimer - Health Encyclopedia - University of

    What is this test? This is a blood test to look for a substance called D-dimer. This test is used to rule out a blood clot. D-dimer is a protein fragment from the break down of a blood clot. Blood clots generally start to slowly break down after they are formed, and this process releases D-dimer into the blood.

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  • D-dimer Testing in Patients with Suspected Pulmonary ...

    2009-11-1 · D-dimer measurements were performed in all patients using the VIDAS D-Dimer assay (BioMerieux, Marcy L'Etoile, France). A D-dimer concentration <500 mg/mL was considered normal. Creatinine levels, which were assessed as clinical routine, were measured by a colorimetric method (Roche Hitachi Modular P800 analyzer; Roche Diagnostics, Indianapolis ...

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  • Serum D-Dimer is a Sensitive Test for the Detection of ...

    2008-5-1 · Specificity of the D-dimer test for acute aortic dissection remains uncertain, but specificity of the D-dimer test generally decreases with advanced age and multiple chronic diseases. The additional benefit of D-dimer when added to a clinical diagnostic algorithm including chest X-ray study presumes independent predictive value of these tests.

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  • Diagnostic accuracy of four different D-dimer assays:

    2021-5-1 · Four different D-dimer assays were applied, with each hospital using its own method for local clinical practice. Of the 3462 patients in the YEARS study D-dimer concentrations were analyzed with the Liatest, Innovance, Tinaquant and Vidas assay in 1323, 1100, 768 and 271 patients, respectively.

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  • Point-of-Care Testing for D-Dimer in the Diagnosis of ...

    D-dimer and FDPs assays were performed in plasma samples by the use of Liatest D-dimer and plasma FDPs (Diagnostica Stago), respectively. Patients were divided into four groups according to plasma D-dimer levels. In group 1, 47.4% had negative FDPs and 52.6% had positive FDPs. In group 2, 15.4% had negative FDPs and 84.6% had positive FDPs.

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  • The Clinical Usefulness of D-Dimer Testing in Cancer ...

    2020-1-22 · D-dimer, Fib, and FDP measurements performed with Sysmex CS5100 and CA7000 (INNOVANCE ® D-Dimer for D-dimer, Dade Thrombin Reagent for Fib and Latex Test BL-2 P-FDP for FDP). D-dimer and FDP were detected with latex-enhanced immunoturbidimetric immunoassays, and Fib was detected with Clauss at the First Affiliated Hospital of Shantou ...

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  • intended for the quality control of the HemosIL D-Dimer

    2014-10-23 · To obtain clearance of a modified assayed control materials intended for the quality control of the HemosIL D-Dimer HS 500 assay as performed on the ACL TOP Family Systems. C. Measurand: D-dimer fragment of fibrin D. Type of Test: Latex based immunoturbidimetric assay E. Applicant: Instrumentation Laboratory, Inc.

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  • D-Dimer: Not Just an Indicator of Venous Thrombosis

    2014-7-1 · Background Plasma D-dimer levels have been shown to be high in advanced tumor stage patients and can be used to predict clinical outcome in cancer patients. As most advanced tumor stage patients exhibit asymptomatic metastasis, which contributes to early tumor recurrence after surgery, we hypothesized that plasma D-dimer levels can be used to predict patients with potential metastasis.

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  • D-Dimer Test For Blood Clots: Normal Range, Elevated

    2021-7-15 · A D-dimer test is a blood test that can be used to help rule out the presence of a serious blood clot. When you get a cut, your body takes a bunch of steps to make your blood clump up. It’s a ...

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  • Highly Sensitive Erba D Dimer R - Erba Mannheim

    2020-11-4 · Transasia-Erba Group provides high quality Immuno-turbidimetry assay for D Dimer detection. This assay is faster with higher sensitivity and specificity. ECL 105 ECL 412 ECL 760 Sample D Dimer R, R1 D Dimer R, R2 D Dimer Diluent 15 µL 75 µL 60 µL-15 µL 75 µL 15 µL 75 µL 50 50 µL Components Test Principle D Dimer present in the sample ...

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  • The diagnostic utility of D-dimer and other clinical ...

    2018-3-5 · Pulmonary embolism (PE) during pregnancy remains one of the leading causes of maternal morbidity and mortality in the developed world. However, there is a paucity of high-quality evidence resulting in a lack of consensus in managing this group of patients. The aims of the study were to address the diagnostic utility of D-dimer for suspected PE in pregnant and post-partum patients and to ...

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  • AIHTA - POCT Point of Care Tests: D-Dimer and

    The policy question is whether hospital stays, admissions or further tests can be avoided by using the two POC diagnostics (D-dimer and troponin). While many studies on POCTs deal with the analytical performance (diagnostic accuracy) of these tests, studies on the impact on clinical (triage) decisions and on patient-relevant endpoints are much ...

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  • The need for accurate D‐dimer reporting in COVID‐19 ...

    2020-6-11 · D-dimer can be reported as fibrinogen equivalent units (FEU) or D-dimer units (DDU). 18 One FEU compares the mass of the D-dimer to that of fibrinogen with a calibrator prepared from plasmin degradation of purified fibrinogen. 19, 20 DDU is an estimated mass of the D-dimer unit with purified D-dimer used as the calibrator. 18, 20 FEU is ...

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  • Tumor-Specific D-Dimer Concentration Ranges and ...

    2016-11-11 · D-dimer level in cancer patients is associated with risk of venous thromboembolism and deep venous thrombosis. Most cancer patients have “abnormal” D-dimer levels based on the current normal reference range. To investigate tumor-specific D-dimer reference range, we compared D-dimer levels for nine different tumour types with healthy controls by using simultaneous quantile regression …

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  • Joint analysis of D-dimer, N-terminal pro b-type ...

    2021-7-21 · According to the literature, the APE mortality rate for the individual mortalities are around 11.2% for D-dimer > 0.50 mg/L 17, 20.0% for cTnI > 0.05 ng/ml 18, and 16.8% for NT-Pro BNP > …

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  • Analysis of D-dimer cut-off values for overt DIC

    2020-12-24 · DS) score to predict mortality in cases of exertional heat illness (EHI) was tested. In the process, 3 different D-dimer cut-off values for diagnosing overt DIC were evaluated. Data were obtained on the first day of hospitalization for 76 patients with EHI. The DIC score was calculated according to the ISTH scoring system using 3 D-dimer cut-off values. In predicting mortality, methods 1 and 2 ...

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  • Roche cobas h 232 D-Dimer Method and Sample

    2012-6-14 · Roche cobas h 232 D-Dimer Method and Sample Collection IECDD.1.v1 26.3.12! 3 ! diagnostic medical devices. A comparison using 3 different lots of the Roche CARDIAC D-Dimer test with the Tina-quant D-Dimer test in a clinial patient population showed slopes between 0.94 and 1.03 in the majority of the method comparisons. The

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  • Comparing D-dimer assays - acute care testing

    Comparing D-dimer assays is challenging. First of all a comparison should be primarily a clinical comparison because the specificities for D-dimer assays can be in the range from 30 to above 90 % [1, 2]. As the number of false-positives is equal to 100 % minus specificity, it can be seen that a relatively high number of false-positives seems to ...

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  • D-dimer testing and acute venous thromboembolism:

    Studies of D-dimer tests for the diagnosis of DVT or PE were eligible for inclusion. No details relating to the assay method or cut-off point were specified in the inclusion criteria. The D-dimer test is used to detect the presence of plasmin-mediated degradation products of fibrin that contain cross-linked D …

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  • D-dimer testing for deep venous thrombosis: a

    Reference standard test against which the new test was compared. Studies that compared D-dimer assays with lower extremity ultrasound or venography were eligible for inclusion. Participants included in the review. Studies of symptomatic patients with suspected acute DVT were eligible for inclusion.

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  • Diagnostic Value of D-Dimer in COVID-19: A Meta

    2021-4-29 · D-dimer is the product of fibrin degradation, and plays a mechanistic role in thrombo-inflammation in COVID-19. 1 Several studies have correlated elevated D-dimer (prevalence up to 46.4%) with increased severity and adverse outcomes of COVID-19. 2 - 4 Patients with D-dimer >1000 ng/ml present a 20-fold higher mortality risk compared to those ...

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  • Meta-analysis of serum and/or plasma D-dimer in the ...

    2020-8-6 · The purpose of this meta-analysis was to evaluate the diagnostic value of D-dimer in detecting periprosthetic joint infection (PJI). A systematic search and screening of relevant studies was performed in the databases PubMed, Web of Science, and Embase using the following medical subject headings (MeSH) or keywords: “arthroplasty or joint prosthesis or joint replacement or periprosthetic ...

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  • Elevated D-dimer levels on admission are associated

    2020-9-14 · D-dimer is a well-known and widely used laboratory parameter for evaluating thrombotic events. The prognostic value of D-dimer levels have been shown in different clinical conditions including acute PE [73, 74]. The frequency of D-dimer elevation has been reported to …

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  • D-dimer and the incidence of heart failure and

    2020-8-13 · Objective D-dimer might serve as a marker of thrombogenesis and a hypercoagulable state following plaque rupture. Few studies explore the association between baseline D-dimer levels and the incidence of heart failure (HF), all-cause mortality in an acute myocardial infarction (AMI) population. We aimed to explore this association. Methods We enrolled 4504 consecutive patients with AMI with ...

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  • What is D-Dimer? - Medical News

    2021-2-25 · D-dimer is often used to measure and assess clot formation. Amid the COVID-19 pandemic, elevated D-dimer levels have been associated with disease severity.

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  • Stago - Detail - STA®-Liatest® D-Di Plus, Less ...

    Using the 0.5 μg/mL (FEU) threshold in conjunction with a pre-test probability assessment, the STA® -Liatest® D-Di has consistently produced low CVs across proficiency program specimens and has been used safely for more than 10 years. STA® -Liatest® D-Di is currently the most frequently used D-Dimer test on the market.

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  • D-dimer testing and acute venous thromboembolism:

    Studies of D-dimer tests for the diagnosis of DVT or PE were eligible for inclusion. No details relating to the assay method or cut-off point were specified in the inclusion criteria. The D-dimer test is used to detect the presence of plasmin-mediated degradation products of fibrin that contain cross-linked D …

    Get Price
  • D-Dimer Assays in Diagnosis and Management of

    D-dimer testing was performed approximately 1 month after anticoagulant withdrawal, using a qualitative D-dimer (Simplify D-Dimer assay; Instrumentation Laboratory, Milan, Italy). Patients with a negative result did not resume anticoagulants, while those with a positive D-dimer were randomized to resume warfarin or remain off therapy.

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  • D-dimer testing as an adjunct to ultrasonography in ...

    1998-10-17 · Objective To investigate the efficacy of using a rapid plasma D-dimer test as an adjunct to compression ultrasound for diagnosing clinically suspected deep vein thrombosis. Design D-dimer concentrations were determined in all patients with a normal ultrasonogram at presentation. Repeat ultrasonography was performed 1 week later only in patients with abnormal D-dimer test results.

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  • Combined use of rapid D-dimer testing and

    2004-10-7 · Objective To summarise the evidence supporting the use of rapid D-dimer testing combined with estimation of clinical probability to exclude the diagnosis of deep venous thrombosis among outpatients. Data sources Medline (June 1993 to December 2003), the Database of Abstracts and Reviews (DARE), and reference lists of studies in English. Selection of studies We selected 12 …

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  • Plasma Measurement of D-Dimer Levels for the Early ...

    2020-10-22 · FDP, and D-dimer. 3. Analysis reagents The parameters analyzed and the reagents used in the study are listed in Table 2. PT (prothrombin time), APTT (activated partial thromboplastin time), Fbg (fibrinogen), TTO (thrombotest value) and HpT (hepaplastin test value) were determined by the clotting time method. The

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  • Evaluation of the Fully Automated Blood Coagulation

    D-dimer testing can combined with assessment of pretest probability be used to rule out VTE in patients with a sufficiently low pretest probability of VTE. Patients with a negative D-dimer result can be ruled out, while patients with a positive D-dimer result need to have imaging performed for confirmatory diagnosis.

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  • Why D-dimer tests cannot be used to exclude venous ...

    2020-9-14 · D-dimer is a well-known and widely used laboratory parameter for evaluating thrombotic events. The prognostic value of D-dimer levels have been shown in different clinical conditions including acute PE [73, 74]. The frequency of D-dimer elevation has been reported to …

    Get Price
  • Elevated D-dimer levels on admission are associated

    D-dimer is the breakdown product; derived from action of plasmin; a clot degrading enzyme, and this works as primary diagnostic tool in various diseases such as; deep venous thrombosis (DVT), systemic illness and cancers. Here D stands for domain and is written as D-dimer or d-dimer [4,5].

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  • D-dimer as an alarming biomarker in various cancers:

    2021-7-13 · D 5392-93 – Standard Test Method for Isolation and Enumeration of Escherichia coli in Water by the Two-Step Membrane Filter Procedure. In: Annual Book of …

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