Methods for the measurement of hemoglobin (Hb) were first developed well over a century ago, so that hemoglobin was among the first diagnostic blood tests available to clinicians during the first decades of the 20th century when laboratory medicine was in its infancy.  Today it is the most frequently requested blood...

As point-of-care testing (POCT) becomes more popular in healthcare institutions because of its ability to deliver high-quality results at the bedside, point-of-care coordinators (POCCs) are becoming increasingly tasked with controlling costs. To deal with this responsibility, POCCs often turn to equipment to solve...

Lately, everybody seems to be talking about reducing testing errors and improving patient safety. But where do you begin? The answer may be to look beyond the error itself and instead focus on what is causing it. Michael Astion, Associate Professor, Director of the University of Washington’s Reference Laboratory...

The University College London Hospitals (UCLH) is one of the largest NHS trusts in England. The Elizabeth Garrett Anderson and Obstetric Hospital houses the Trust's gynecology, obstetric and neonatal services. At the neonatal unit, blood gas monitoring has historically been done by a combination of blood gas...

Point-of-care testing (POCT) results, like other forms of laboratory data, hold potential hidden information that can be utilized to improve patient care.  The technique of extracting useful information from vast amounts of data is termed “data mining”. Technological solutions are now available to meet the challenges ...

Simple data-mining algorithms can be applied to point-of-care testing (POCT) data to document compliance of quality control, operator training and to identify potential preanalytical errors. Data can be manipulated to automate manual review and other laborious processes for identifying data trends, verifying...

The significance of good practice during the pretesting phase of clinical laboratory investigation cannot be overemphasized. The production of high-quality, accurate results, which are clinically useful, depends as much on practice before the patient’s sample reaches the laboratory as it does on the analytical phase...

Test results are commonly interpreted against population-based reference (normal) intervals, which should be provided on every laboratory report, irrespective of whether the test has been done as point-of-care testing or in a clinical laboratory. Reference intervals are difficult to generate properly if international ...

The introduction of armband barcode scanning capabilities to point-of-care glucose testing devices has been shown to greatly reduce patient identification errors. Barcodes may be scanned to identify operators, patient identification and reagents. Barcode scanning, however, does not eliminate all errors, and in some...

Biochemical and hematological analyses are done in laboratories, clinics, general practices and in point-of-care settings such as ITU.  Generally, numerical test results are generated.   Test results vary in individuals over time due to preanalytical variation, analytical imprecision and biological variation. The...