Printed from acutecaretesting.org
Articles and journal scans about Preanalytical phase
Journal Scan
July 2014
Heparin anticoagulation of samples for blood gas analysis
Since the inception of blood gas analysis, heparin has been the anticoagulant of choice for preparation of samples. Historically, syringes used to collect arterial blood for gas analysis were prepared ”in house” by aspirating a small volume of liquid heparin (LH) and then expelling it. The thin film of liquid heparin...
Blood gases/acid-base
Preanalytical phase
Journal Scan
May 2014
Venous versus arterial blood for blood gas analysis – revisited
Arterial blood is the “gold standard” sample for blood gas analysis. Compared with venous blood sampling, arterial blood sampling is technically more difficult as well as being more painful and hazardous to the patient. These are among the considerations that drive the continuing research interest in establishing...
Blood gases/acid-base
Preanalytical phase
Quality assurance
Journal Scan
July 2013
Timing of sampling for blood gases following change in oxygen therapy
Patients with chronic obstruction pulmonary disease (COPD) may need long-term oxygen therapy, monitored with blood gas analysis (pO2(a) and sO2(a)). It is important that when adjustments are made to this therapy (either increase or decrease in fraction inspired oxygen, FIO2) there should be delay until a new steady...
Blood gases/acid-base
Preanalytical phase
Journal Scan
April 2013
Hemolysis in samples for blood gas analysis
Hemolysis causes clinically significant bias in four of twelve parameters generated during blood gas analysis. That is the headline finding of a recently published study that is, according to the authors, the first ever to investigate the effect of hemolysis on blood gas analytes. Venous blood was sampled from nine...
Blood gases/acid-base
Preanalytical phase
Article
January 2013
Blood gas interpretation in the neonate - what do you need to know now?
Many authors contend that drawing of umbilical ABGs is a simple method to evaluate the condition of the neonate and ideally would be routinely done for all newborns [13].
Other authors disagree. Appropriate general principles guide clinicians when drawing and interpreting ABGs for all patients. The special needs of...
Neonatology
Point-of-care testing
Blood gases/acid-base
Preanalytical phase
Lactate
Journal Scan
October 2012
Towards pain-free blood gases
Blood gas analysis is unique among blood tests in its requirement for arterial blood; all others are performed on venous, or more rarely, capillary blood samples. Sampling arterial blood is a technically difficult procedure to perform, and painful for the patient: significantly more painful than sampling either venous ...
Blood gases/acid-base
Preanalytical phase
Journal Scan
October 2012
Choice of blood gas syringe – does it matter?
The preanalytical phase of laboratory testing has long been recognized as a stage for potential error, and blood gas analysis is a test that is well-recognized as being particularly vulnerable in this regard. Much research has been directed at devising procedures that minimize variability of measured blood gas...
Blood gases/acid-base
Quality assurance
Preanalytical phase
Article
October 2012
Point-of-Care Testing: Making Innovation Work for Patient-Centered Care
Chris Price and Andrew St John have followed their book Point-of-Care Testing for Managers and Policymakers with another look at the subject from strategic vision to change management and implementation in Point-of-Care Testing: Making Innovation Work for Patient-Centered Care.
In their latest book the authors give...
Point-of-care testing
Information management
Cardiac markers
Glucose
D-dimer
Preanalytical phase
Article
July 2012
Effect of small air bubbles on changes in blood pO2 and blood gas parameters: calculated vs. measured effects
When collecting blood for blood gas analysis, it is important to remove air bubbles from syringes to avoid erroneous results, especially for pO2, with a number of factors affecting the potential magnitude of the interference to pO2 by air bubbles.
In this study, we calculate the expected theoretical changes in pO2...
Blood gases/acid-base
Preanalytical phase
Article
July 2012
Preanalytical errors in Point-Of-Care Testing
Preanalytical errors are quite frequent in the area of point-of-care testing (POCT). There are many reasons for that. First of all, POCT testing is usually performed by clinical staff (i.e. nurses and physicians), who are neither so skilled nor educated for laboratory work as laboratory professionals.
Moreover,...
Point-of-care testing
Quality assurance
Preanalytical phase