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Articles by Jochen W. L. Cals
Showing articles by "Jochen W. L. Cals"
Article
February 2004
The new CLIA quality control regulations and blood gas testing
In the U.S. all clinical laboratory determinations, including blood gas testing performed at point of care (POC) or in the central laboratory, is regulated by the Clinical Laboratory Improvement Amendments of 1988 (CLIA).
Congress passed CLIA to ensure accurate, reliable, and timely test results regardless of...
Point-of-care testing
Blood gases/acid-base
Quality assurance
Article
January 2004
Ole Siggaard-Andersen: The man behind the legend
When it comes to acid base, there is no getting around the name of Ole Siggaard-Andersen (OSA). acutecaretesting.org talks to the world-renowned Danish professor, who has become a legend in the field of blood gas.
Blood gases/acid-base
Lactate
Article
January 2004
Monitoring fluid and electrolyte therapy in the newborn intensive care unit
Fluid and electrolyte management is an important and challenging part of the management of any very premature or critically ill newborn. The newborn's ability to maintain fluid and electrolyte homeostasis in the face of the vagaries of extrauterine life is compromised by immature renal function.
The very premature...
Preanalytical phase
Neonatology
Glucose
Lactate
Creatinine/urea
Article
January 2004
Useful tips to avoid preanalytical errors in blood gas testing: metabolites
Measurement of glucose and lactate after 30 minutes of storage at room temperature can give deviating results of up to 5 % [1,2] and 29 % of the reference value [3] respectively [1,4], due to in vitro glycolysis
Glucose and lactate are both important parameters in the surveillance of patients in critical care...
Preanalytical phase
Glucose
Quality assurance
Lactate
Blood gases/acid-base
Article
January 2004
The challenges of point-of-care testing, mate
Minimizing costs? Quality assurance? Training? Simpler devices? acutecaretesting.org asked four healthcare professionals in Australia and New Zealand what they saw as the main challenges of POCT.
Answers were broad in spectrum. Nevertheless, three challenges were (directly or indirectly) mentioned repeatedly:...
Point-of-care testing
Article
January 2004
Transcutaneous monitoring of pO2 and pCO2 in neonates - a blessing or a burden?
Monitoring of blood gases is essential in neonatal intensive care. Traditionally arterial samples have been considered the gold standard, but in critically ill neonates physiological changes can happen within minutes to a degree endangering the newborn.
Clinicians can therefore not rely solely on intermittent...
Neonatology
Article
October 2003
Are we ready for the outbreak of an epidemic?
That is the question the Hvidovre Hospital had to ask itself in May 2003, when the Danish National Board of Health and the Copenhagen Hospital Corporation appointed it to be one of the country's three key sites for receiving and treating SARS patients.
Once appointed, the hospital began a painstaking process of...
Point-of-care testing
Article
October 2003
Useful tips to avoid preanalytical errors in blood gas testing: electrolytes
Preanalytical errors are said to be the reason for up to 75 % [1] of all errors in laboratory medicine. The diagnostic consequences depend on the magnitude of the preanalytical error.
In worst case, these errors may lead to mistreatment of patients; in all cases, these errors are an extra workload for the hospital...
Preanalytical phase
Electrolytes
Quality assurance
Glucose
Hemoglobins
Blood gases/acid-base
Article
September 2003
Principles and problems of blood glucose measurement
Although blood glucose measurement is commonly performed, the use of a whole-blood sample introduces complications and compromise in terms of the assay principle, the method of calibration and the expression of results.
Most point-of-care systems are calibrated against a method chosen by the manufacturer for...
Glucose
Preanalytical phase
Article
September 2003
Transcutaneous monitoring - a Danish approach
Danish neonatal intensive care units (NICUs) are known
throughout the world for practicing minimal handling. Because it is
non-invasive, transcutaneous monitoring of pO2
and pCO2 plays an important role in this
setup.
acutecaretesting.org has interviewed Professor Gorm
Greisen, MD, Dr. Med. Sci., and Head of the...
Neonatology
