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Articles by W. G. Zijlstra
Showing articles by "W. G. Zijlstra"
Article
July 2008
Capillary blood gases - to arterialize or not
The ‘gold standard’ sample for blood gas analysis is arterial blood obtained via an indwelling arterial catheter or by arterial puncture. For a number of reasons capillary blood is an attractive substitute sample that is routinely used in some clinical settings.
The purpose of this article is to examine the evidence ...
Neonatology
Glucose
Preanalytical phase
Article
June 2008
Point-of-care testing, now and in the near future
Introduction of point–of-care testing (POCT) in hospitals requires the use of principles of change management. Manufacturers can support this process.
E-learning programs adapted to the local situation with regular updates, a centralized accreditation and user-registration system and service level agreements are...
Point-of-care testing
Information management
Process optimization
Glucose
Article
January 2008
Measurement of circulating glucose: The problem of inconsistent sample and methodology
There are few medical diagnoses that depend solely on the result of a single blood test, but diabetes mellitus, which is defined by concentration of circulating glucose, is one that does.
Quite apart from its long established role in diagnosis as well as life-long monitoring of diabetes, measurement of circulating...
Glucose
Hemoglobins
Preanalytical phase
Article
November 2007
Automating shunt calculation improves analytical quality
Tartu University Hospital has improved the quality of blood gas testing in its clinical laboratory and critical care units by introducing an automatic system for blood gas analysis.
Not only did the quality of processes in the preanalytical phase improve, but also the automatic calculation of pO2(A-a), for APACHE...
Information management
Blood gases/acid-base
Process optimization
Quality assurance
Creatinine/urea
Article
September 2007
Lactate and lactic acidosis
The integrity and function of all cells depend on an adequate supply of oxygen. Severe acute illness is frequently associated with inadequate tissue perfusion and/or reduced amount of oxygen in blood (hypoxemia) leading to tissue hypoxia.
If not reversed, tissue hypoxia can rapidly progress to multiorgan failure and ...
Blood gases/acid-base
Glucose
Lactate
Kidneys/fluids
Article
September 2007
Patient safety 2007
In 2005, acutecaretesting.org interviewed Dr Michael Astion, an active spokesperson for patient safety and reduction of lab errors, on the main issues surrounding the topic. Since then, a lot has changed… or has it? In a follow-up interview with Astion, acutecaretesting.org gauges the status of patient safety year...
Point-of-care testing
Information management
Process optimization
Glucose
Article
September 2007
Automating blood gas improves preanalytical quality
Tartu University Hospital has improved the quality of blood gas testing in its clinical laboratory and critical care units by introducing an automatic system for blood gas analysis [1].
Process optimization
Blood gases/acid-base
Information management
Point-of-care testing
Preanalytical phase
Hemoglobins
Article
July 2007
Is there a QC Gap?
This essay is a follow-up to the 2006 series expressing concern that there is a widespread gap between QC theory and QC practice. Now we are giving you, the reader, the opportunity to rate your own QC practice and to help prove or disprove that gap.
If the QC theories generally recommended by recognized QC experts ...
Quality assurance
Article
July 2007
Ionized calcium
Homeostatic mechanisms ensure that in health the
extracellular fluid (ECF) concentration of electrolytes, including
calcium, is maintained within well-defined limits. Abnormality in
ECF calcium concentration can have profound adverse effects.
The
most common means of assessing calcium status is to measure total...
Preanalytical phase
Electrolytes
Lactate
Hemoglobins
Kidneys/fluids
Article
June 2007
Want to improve patient safety?
In most hospitals, the amount of nursing time spent on actual patient care is only 33 %, while problem solving consumes 40 % of their time. That’s the bad news. The good news is that inverting this ratio may be easier than you think.
According to Dr John Kenagy and David Sundahl of the US-based Kenagy & Associates,...
Point-of-care testing
Preanalytical phase
Process optimization
