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Articles by A. Farkas & S. Schmidt
Showing articles by "A. Farkas & S. Schmidt"
Article
January 2005
Understanding the principles behind blood gas sensor technology
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 ...
Preanalytical phase
Blood gases/acid-base
Glucose
Kidneys/fluids
Article
January 2005
Biological variation and reference (normal) values
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 ...
Quality assurance
Creatinine/urea
Hemoglobins
Article
January 2005
Pneumatic tube transport of samples for blood gas analysis
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...
Blood gases/acid-base
Process optimization
Preanalytical phase
Lactate
Article
October 2004
Permissive hypercapnea: Protecting the infant lung
Almost as soon as healthcare providers began ventilating neonates with respiratory distress syndrome, the problem of chronic lung disease began. How to manage these children in a way to promote lung growth and disease-free survival has been the question for those involved in the care of these infants since that time....
Neonatology
Hemoglobins
Article
October 2004
Jaundice in the newborn infant
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 ...
Bilirubin
Neonatology
Hemoglobins
Article
October 2004
Overcoming the limitations of barcode technology
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...
Information management
Glucose
Preanalytical phase
Process optimization
Article
September 2004
Biological variation - what’s it all about?
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...
Quality assurance
Hemoglobins
Glucose
Article
September 2004
Quality assurance of the preanalytical phase - complying with ISO 15189:2003
A specimen for clinical laboratory testing must be properly collected from the correct patient at the correct time with proper patient preparation, and the right test must be performed for answering the right question.
Quality in the preanalytical phase of laboratory activity can be assured by implementing a quality...
Quality assurance
Preanalytical phase
Article
August 2004
Diabetic ketoacidosis
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...
Electrolytes
Blood gases/acid-base
Preanalytical phase
Glucose
Creatinine/urea
Kidneys/fluids
Point-of-care testing
Article
July 2004
The heart of the matter
Blood gas analysis at the point of care plays an important role during and after an open-heart surgery. acutecaretesting.org recently talked to Prof. Knut Kleesiek, MD, Director of the Institute for Laboratory and Transfusion Medicine of the Heart and Diabetes Center North Rhine-Westphalia in Germany, to find out more ...
Point-of-care testing
Blood gases/acid-base
Glucose
Hemoglobins
Lactate
