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Articles and journal scans about Preanalytical phase
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
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
May 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
April 2003
Method comparison or procedure comparison?
With the increasing number of blood tests performed at the point of care (POC), it has become more and more important to perform method comparison studies, comparing new methods to the existing methods used in the laboratory (LAB). This is done primarily to ensure that uniform results are reported throughout the...
Quality assurance
Point-of-care testing
Preanalytical phase
Glucose
Lactate
Article
January 2003
What to consider when performing method comparisons on blood gas analyzers
When performing method comparisons, it is important to address a number of preparatory and preanalytical issues to ensure that comparisons solely reflect the analytical differences between the two methods in question.
This article provides preparatory and preanalytical checklists that can be used when comparing two...
Quality assurance
Blood gases/acid-base
Preanalytical phase
Article
October 2002
Understanding the different values in electrolyte measurements
The measurement of the electrolytes in blood is one of the most frequently performed measurements as the electrolytes are of major physiological importance for numerous functions of the body.
Analysis of electrolytes such as sodium and potassium are performed in the traditional clinical chemistry laboratory, but are...
Quality assurance
Electrolytes
Preanalytical phase
Article
June 2002
Fetal capillary blood pH (fetal blood sampling)
Electronic fetal monitoring (EFM) during labor has been performed for 40 years. However, the specificity in diagnosing asphyxia is still insufficient. The combination of EFM and fetal scalp-blood sampling was introduced shortly after the introduction of EFM.
Although this monitoring ensures a better sensitivity and...
Blood gases/acid-base
Neonatology
Preanalytical phase
Article
June 2002
Key elements in a successful pediatric laboratory
Children are not just small adults, and present unique challenges to the clinical laboratory. Blood specimens must be very small; for example, total blood volumes in a premature infant can be as small as 115 mL. Genetic diseases frequently must be detected in the newborn period. Reference values change with age....
Neonatology
Blood gases/acid-base
Point-of-care testing
Preanalytical phase
Glucose
Hemoglobins