Noninvasive pH Monitoring in Platelet Concentrates
نویسندگان
چکیده
منابع مشابه
Variation of pH-measurement in platelet concentrates.
To measure pH in platelet concentrates, blood gas analysers with different calibration principles may be used. In this study, variances observed in pH measurements with two types of blood gas analysers were investigated. pH was measured in crystalloid solutions (platelet additive solution (PAS-II), phosphate-buffered solutions) and two types of platelet concentrates (containing 100% plasma, or ...
متن کاملNoninvasive pH measurement to monitor changes during suboptimal storage of platelet concentrates.
BACKGROUND Noninvasive pH measurement of platelet concentrates (PCs) was evaluated as a tool for the quality control of PC storage by simulating worst-case conditions. STUDY DESIGN AND METHODS PCs from pooling four buffy coats in 70% PAS-3M were both stored in bags wrapped to impair gas permeability and agitated or not until Day 9 of storage. pH values measured both in samples (electrode, blo...
متن کاملpH changes caused by bacterial growth in contaminated platelet concentrates.
While platelet concentrates are stored at room temperature, lactic and other acids are produced and the pH decreases as the buffering capacity of the plasma is exhausted. Platelet viability will be compromised if the pH decreases to pH 6.0 and below. Similarly, a pH decrease can be produced also by bacterial contamination if the organisms produce acid as an end product. Thus the determination o...
متن کاملMonitoring of platelet activation in platelet concentrates using transmission electron microscopy.
OBJECTIVE The quality of platelet concentrates (PC) is important for the in vivo recovery of thrombostasis in patients suffering from bleeding disorders and in tumor patients after chemotherapy. In this respect, activated platelets (PLT) cannot display their full functionality in the recipient and even can cause adverse effects. Therefore, we developed a transmission electron microscopy (TEM) m...
متن کاملAn Overview on Platelet-derived Microparticles in Platelet Concentrates: blood collection, method preparation and storage
Preparations of platelet concentrates (PCs) that are stored under blood bank conditions and used for transfusion purposes, appear to be enriched in platelet derived-microparticles (PMPs) with high coagulant activity that may change platelet efficacy and safety issues. High shear stress could cause shedding of PMPs from the platelet plasma membrane, platelet aggregation, and activation of the co...
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ژورنال
عنوان ژورنال: Transfusion Medicine and Hemotherapy
سال: 2013
ISSN: 1660-3818,1660-3796
DOI: 10.1159/000350220