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Articles by E. M. Clarke
Showing articles by "E. M. Clarke"
Article
October 2003
Proficiency testing versus QC-data-comparison programs
Evaluation of the quality of the total testing process of a laboratory is very important to assure that the results supplied by the laboratory are correct and can be used for decisions by the personnel ordering the tests. In this paper Proficiency Testing (PT) or External Quality Assessment (EQA) is described.
PT is...
Quality assurance
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
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
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
Article
July 2003
The EU IVD Directive (98/79 EC) - a user’s point of view
The Directive is a complex and detailed document and in the following the author focuses on some of the items that are particularly important for the user to be aware of.
Most of the rules will apply to the manufacturers and the public and the users will take advantage of the rulings if they become aware of their...
Quality assurance
Glucose
Article
May 2003
Increased blood lactate levels: a marker of...?
Since Meakins in 1927 described the relationship between increased blood lactate levels and the presence of oxygen debt (tissue hypoxia) in patients with circulatory shock [1], lactate levels have been used to diagnose and monitor the treatment of these patients.
However, as lactate is a normal (end) product of...
Glucose
Lactate
Hemoglobins
Kidneys/fluids
Article
April 2003
STAT testing in the future
Since the mid 1990's Point of Care Testing (POCT) has been viewed as a solution to a declared need for Short Turn Around Testing (STAT).
However, is it being utilized in a way that meets the needs of improving patient care and hospital quality assurance? What is STAT testing, why and how did it become POCT? How is...
Process optimization
Point-of-care testing
Information management
Glucose
Creatinine/urea
Article
April 2003
Patient ID barcoding - aspects to consider when im
Identification of products by barcode has been utilized by industry and business for over 30 years. The use of barcodes in the hospital setting is also well established, but in the patient environment, hospitals are still behind industry. For Point-of-Care Testing (POCT), barcodes are highly desirable. Deanna Bogner, ...
Preanalytical phase
Information management
Point-of-care testing
Process optimization
Article
March 2003
Accreditation of medical laboratories using ISO 15189:2003
Accreditation of medical laboratory examinations in the widest sense is becoming important as a management tool and a means to create confidence in results.
The International Standard ISO/IEC 17025:1999 provides the general requirements for quality management system and technical competence, but the medical...
Quality assurance
