This article first appeared in Pathology in Practice (Hobba H, Silver L. Evolution of POC testing. Pathology in Practice 2013; 14 [2]: 63) and is reproduced here by kind permission (www.pathologyinpractice.com). © 2013 kdm communications limited Point-of-care (POC) testing has allowed the pathology department in...

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...

Neonates nearly always experience their single largest day of blood loss on the day of birth due to admission laboratory testing. The term "admission laboratory testing" refers to the initial blood tests done when a baby is born and admitted to the NICU.  Total circulating blood volume in a 3.5 kg term newborn is 280...

How do errors occur in the laboratory and what can we do to prevent errors? Any test can and will fail if incorrectly performed or operated under the wrong conditions. The role of the laboratory director is to determine those conditions and to understand test limitations in order to prevent laboratory errors....

Recently developed high-sensitivity cardiac troponin (cTn) assays can measure approximately 10 times lower concentrations with high precision (coefficient of variation, <10 % at the 99th percentile of the upper reference limit) than conventional assays, and can measure cTn concentrations in at least 50 % of a reference ...

Diagnosing heart failure (HF) in patients presenting in primary care is difficult. Clinical assessment of symptoms and signs has limited sensitivity and specificity. NT-proBNP determination has been proven to be useful and accurate for ruling out the diagnosis of systolic HF, and some have even proposed different...

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....

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...

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...

Differentiating self-limiting from serious lower-respiratory-tract infections (LRTI) based on medical history and physical examination is challenging in primary care. Many family physicians (FPs) empirically prescribe antibiotics to most LRTI patients.  The use of C-reactive protein (CRP) point-of-care testing as an...