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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...

This article explores the potential benefits of point-of-care testing in the ED. Price and St. John provide a detailed description on how to approach four common aspects of point-of-care testing (POCT) in the ED, specifically, the challenges of adopting POCT, the impact of POCT on clinical decisions, the impact of...

This article discusses the use of a D-dimer assay in excluding venous thromboembolism (VTE) in outpatients. Together with a low pretest probability of VTE, a negative D-dimer test can rule out VTE in 30-50 % of suspected patient cases. The article highlights the importance of using a D-dimer assay with particular...

Bacterial infections are one of the major reasons for patients presenting to the ED - and the main cause of death in elderly patients. It is important to identify elderly patients with bacterial infections early and initiate treatment in the ED for a better outcome. However, an infection in an elderly patient can be...

For patients presenting to the ED with symptoms of a suspected infection, measuring procalcitonin (PCT) is a useful diagnostic tool to identify bacterial infections, such as sepsis, allowing for early initiation of proper antibiotic treatment. In assessing the severity of sepsis, serum PCT levels are an important...

This short review aims to put the diagnostic options provided by state-of-the-art POCT  technology into perspective with the clinical challenges faced by physicians treating patients presenting with acute dyspnea.  Natriuretic peptides, hemoglobin, D-dimers and venous blood gases play a key role in the early...

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...

Point-of-care testing (POCT) for key laboratory variables may help clinicians assess the level of acuteness and the level of care necessary in the management of deteriorating ward patients. We used a multibiomarker POCT panel including B-type natriuretic peptide (BNP), D-dimer, myoglobin (Myo), creatine kinase MB...

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...