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 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...

Is it a good idea to rely on vendors to help develop training materials for point-of-care testing staff? According to the lab group responsible for point-of-care (POC) testing at the Malmö University Hospital in Sweden, vendor cooperation can help you achieve a better result, faster. However, the better prepared you ...

Today’s blood gas sensors are the result of many years of gradual improvements and optimizations. The operating principles behind sensor technology have largely remained unchanged, even though the size of analyzers and thus of sensors has decreased remarkably.  However, miniaturization has created a new challenge: to ...

Neonatology, perhaps more than any other field in medicine, has undergone dramatic improvements in care over the last several decades. One of the main areas of advancement is the ability to mechanically ventilate premature infants with a variety of neonatal lung conditions. As survival of premature infants has...

About half of all newborn infants born at term develop jaundice during their first days of life, and the lower the gestational age the more frequent the jaundice is. Newborns develop hyperbilirubinemia because of a large bilirubin production, low hepatic excretion and enterohepatic recirculation. At birth the newborn ...

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...

Disturbance of the mechanisms which maintain normal blood pH is a defining feature of diabetic ketoacidosis (DKA), an acute and life-threatening complication of the chronic metabolic disease, diabetes.  For this reason diagnosis and monitoring of DKA invariably include measurement of arterial blood gases. This...

To assess anemia and reduced oxygen-carrying capacity, a measurement of hematocrit and/or hemoglobin is performed. Whether hemoglobin or hematocrit is preferred depends on different needs and is often determined by tradition.  Both hematocrit and hemoglobin are important hematology parameters for diagnosing...