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Because measurements of GFR are tedious, estimated GFRs based on creatinine or cystatin C are widely used for assessing kidney function. Both measured GFRs and the Staging System for CKD based on GFR have analytical and clinical shortcomings. The advantages of serum creatinine and cystatin C, and eGFR will be...

Barnsley Emergency Department (ED), which recruited patients into the RATPAC trial, initiated a point-of-care (POC) pathway for low-risk chest pain patients from December 2011. All patients who underwent POC testing for chest pain between December 2011 and July 2012 were identified. Patient notes were then examined...

In the past years, emergency rooms (ER) all over Germany, especially those of maximum-care hospitals, have been faced with an increasing number of patients. This is caused by a variety of factors, including demographic changes, inflexible ambulant services and an overreaching demand for healthcare services. ER...

Reprinted from Ann Lab Med 2013 Sep; 33(5):309-18. Christenson E, Christenson RH: "The role of cardiac biomarkers in the diagnosis and management of patients presenting with suspected acute coronary syndrome". Myocardial infarction (MI) is the leading cause of death in the developed world. Biomarkers have an...

Point of care (POC) testing has become an important part of nephrological care. In cases of acute renal failure, POC is indispensible in deciding the need for dialysis, but is also essential in the management of patients on regular dialysis. For example, hyperhydration, cardiovascular adverse events and inflammation...

The term acidosis was first mentioned in the medical literature in 1898 in connection with the description of diabetic ketoacidosis. Alkalosis was first used in human medicine in 1922 by the English physiologist J. S. Haldane; it had been used in veterinary medicine somewhat earlier. In 1870, the Norwegians C. M....

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...

In the ED, 25 % of patients with angina pectoris with suspected AMI are wrongly diagnosed (no cardiac involvement). As a result, the patient risks are increased and resources are wasted. We investigated the effect of point-of-care testing (POCT) on ED processes, resource needs, patient risks and overall costs. POCT...

Various guidelines and recommendations are available for the use of natriuretic peptides in the diagnosis of heart failure. As it is known that old age may lead to higher natriuretic peptide values in the absence of heart failure, it is relevant to decide whether to use age-dependent reference intervals for clinical...