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Articles by Callum G. Fraser
Showing articles by "Callum G. Fraser"
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
Fetal-to-neonatal transition: Part 2
Part 2: Red flags
The transition from fetus to newborn is a process of rapid physiological adaptation that is sometimes delayed by complications. Most newborns complete the process of transition with little or no delay.
These infants may demonstrate normal transitional findings, including tachypnea and tachycardia, ...
Neonatology
Glucose
Hemoglobins
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
Fetal-to-neonatal transition: What is normal and what is not? Part 1
Part 1: The physiology of transition
The transition from fetus to neonate is a critical time
of physiological adaptation. While the majority of term infants
complete this process in a smooth and organized fashion, some
infants experience a delay in transition or exhibit symptoms of
underlying disease.
Careful...
Neonatology
Blood gases/acid-base
Glucose
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
Article
May 2007
Standards Provide a Quality Approach to Blood Gas Analysis
Blood gas analysis is a complex field that has a direct impact on patient care in a critical care environment. Healthcare professionals consistently emphasize high-quality results in order to properly treat patients, and recognize the need and usefulness of quality standards.
Using a path-of-workflow analysis as part ...
Quality assurance
Article
April 2007
The use of heparin in preparing 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...
Preanalytical phase
Quality assurance
Glucose
