Neonates are subject to more preanalytical influences than any other population group. Many of these are related to the maturity of the infant and its adaptation to extra-uterine life. The necessary need for capillary blood collection and processing of small quantities of blood introduce additional preanalytical...

The concept of “metrological traceability” is important when establishing comparable clinical decision limits for a measured analyte at different hospitals within one country and in different countries.  This can only be achieved if all instrument manufacturers establish the performance characteristics of their...

While analytical quality standards seem well established, there has been a paucity in the development of such standards for the preanalytical phase.  Technical recommendations regarding sampling, transport, and identification have been developed in national (NCCLS, DIN) and international (IFCC, ISO) consensus...

What quality is being controlled in laboratories today?  The definition of a quality requirement for each laboratory test is the starting point of quantitative quality management. Different types of requirements may be used as long as there are appropriate quality-planning models for translating those requirements...

Whether performed by one "traditional" or several "point-of-care" devices, all Multi-Profile Blood Gas (MPBG) results must be accurate and precise if they are to be effective in managing critically ill patients. Optimal analytical quality control of multi-profile blood gas analysis requires a good quality assurance...

An altitude of 5,000 meters above sea level or just above is just about what humans can bear - be it during an acute ascent or for permanent living. This study describes how bodily functions of crucial importance to survival at high altitude adjust after abrupt exposure to severe hypoxia.

Two months of acclimatization to high altitude leads to an adaptation of the aerobic capacity of the myocardium, characterized by an increased ability to extract O₂ from the coronary vascular bed. An increased mitochondrial volume and activity of oxidative enzymes or improved diffusion conditions could be involved.

Providing continuous technical support and reliable test data collection for point-of-care blood gas testing is a difficult task for many laboratories.  Here we describe how the implementation of an integrated instrument control and data management system for point-of-care blood gas testing has streamlined these...

How relevant is transcutaneous measurements in the detection of critical limb ischemia?  Acutecaretesting.org has asked a group of respected researchers and clinicians in the US and Europe to describe how they use transcutaneous measurements in their daily work.

The pro-con debate on the advisability of introducing POCT deals with the likely clinical benefits but – to an even higher degree – with the economic aspects. We discuss various models for determining the costs, and some caveats.