Health devices
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Whole blood Coagulation analyzers (WBCAs) are widely used point-of-care (POC) testing devices found primarily in cardiothoracic surgical suites and cardia catheterization laboratories. Most of these devices can perform a number of coagulation tests that provide information about a patient's blood clotting status. Clinicians use the results of the WBCA tests, which are available minutes after applying a blood sample, primarily to monitor the effectiveness of heparin therapy--an anticoagulation therapy used during cardiopulmonary bypass (CPB) surgery, angioplasty, hemodialysis, and other clinical procedures. ⋯ We based our conclusions on a unit's performance and humans factor design, as determined by our testing, and on its five-year life-cycle cost, as determined by our net present value (NPV) analysis. While we rated all evaluated units acceptable for each appropriate category, we did identify some significant differences that enabled us to rank the units in order of preference. We have included a Selection, Purchasing, and use guide at the end of this study to help facilities identify the unit that will best meet their needs.
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In-line blood/solution warmers are used in many clinical procedures to warm refrigerated and room temperature fluids as they are infused into the patient. Warming fluids such as whole blood, blood products, intravenous (IV) solutions, and irrigation solutions helps to maintain the patient's core body temperature, thus minimizing adverse thermal reactions (e.g., hypothermia). In this study, we evaluated nine in-line blood/solution warmers from seven manufacturers. ⋯ Also, we describe the technologies used in these devices, as well as the safety issues associated with their use. The Selection, Purchasing, and Use Guide at the end of the Evaluation provides guidance to help facilities (1) assess their blood/solution warming needs, (2) choose the systems that will best meet their needs, and (3) use these systems effectively. This study also includes the supplementary article, "Maximum Blood Warming Temperature-How Hot Is Too Hot?"