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Articles by K. Wiener
Showing articles by "K. Wiener"
Article
January 2012
Why Point of Care lactate?
Sepsis is a major cause of mortality and morbidity for hospitalized patients around the world. Early intervention can reduce mortality and morbidity from severe sepsis, but signs and symptoms of sepsis are non-specific. Point-of-care lactate has proved to be an invaluable tool for some institutions in standardized...
Glucose
Infection/sepsis
Point-of-care testing
Process optimization
Lactate
Article
October 2011
Choosing cut-offs for NT-proBNP
Various guidelines and recommendations are available for the use of natriuretic peptides in the diagnosis of heart failure.
As it is known that old age may lead to higher natriuretic peptide values in the absence of heart failure, it is relevant to decide whether to use age-dependent reference intervals for clinical...
Cardiac markers
Natriuretic peptide
Article
October 2011
POC testing in the emergency department: Strategies to improve clinical and operational outcomes
Emergency departments (ED) are challenged by increasing patient visits, overcrowding and prolonged length of stay (LOS). The cause of these problems is multifactorial.
Delays in the laboratory are often perceived as contributing to delays in care and increased LOS. Implementation of selected point-of-care tests in...
D-dimer
Creatinine/urea
Natriuretic peptide
Troponins
Cardiac markers
Point-of-care testing
Process optimization
Article
April 2011
The importance of preoperative evaluation of NT-proBNP
Postoperative cardiovascular event including myocardial infarction or heart failure is a major cause of morbidity after non-cardiac surgery. Preoperative evaluation including estimation of the probability of perioperative cardiac event and application of non-invasive testing or beta-blocker has been developed, but...
Cardiac markers
Creatinine/urea
CRP
Natriuretic peptide
Article
April 2011
Optimizing accuracy and precision for point-of-care tests
Point-of-care testing sites continue to increase in number due to the availability of easy-to-use devices that make it possible to provide test results very quickly relative to the central laboratory services. There is, however, mixed review regarding the accuracy and reliability of POCT results for patient care. It...
Point-of-care testing
Preanalytical phase
Quality assurance
Glucose
Hemoglobins
Lactate
Troponins
Article
January 2011
ROC curves – what are they and how are they used?
ROC curves are frequently used to show in a graphical way the connection/trade-off between clinical sensitivity and specificity for every possible cut-off for a test or a combination of tests. In addition the area under the ROC curve gives an idea about the benefit of using the test(s) in question.
ROC curves are...
Information management
Article
January 2011
Moving the Laboratory into the Wards
As healthcare seeks to provide better care with fewer resources, Point-of-Care Testing steps in to move key diagnostic or screening tests to the patient’s bedside. The results can have a significant impact on a patient outcome and operational costs.
Blood gases/acid-base
Process optimization
Glucose
Hemoglobins
Creatinine/urea
Natriuretic peptide
Article
October 2010
D-dimer: Past, present, and future
The following is a copy of an article from Nursing 2007, Fall 2007 Volume 37 Number 8 - Supplement: ED Insider, Pages 14 - 16
The D-dimer level is a measure of clot formation and lysis that results from the degradation of cross-linked fibrin. Widely used as an indicator for the presence of disseminated intravascular ...
Coagulation/fibrinolysis
D-dimer
Article
July 2010
Cardiac biomarkers for acute coronary syndrome and ongoing myocardial damage in heart failure
The growing role of cardiac markers has
been elucidated in patients with acute coronary syndrome, heart
failure and other cardiovascular diseases.
The markers can be cytosolic like
heart-type fatty-acid-binding protein (H-FABP) and creatine kinase
MB (CKMB), myofibrillary like troponin T (TnT) and cardio-endocrine...
Cardiac markers
Troponins
Natriuretic peptide
Article
January 2010
Comparing D-dimer assays
When a new D-dimer method is to be implemented either as a substitute for a currently used D-dimer assay or as a supplement, maybe as a point-of-care assay, it is necessary to do a clinical comparison of the "old" assay versus the "new" assay. The major pitfalls in D-dimer comparisons are addressed in this paper.
...
Coagulation/fibrinolysis
D-dimer
