Testing Na+ in blood
نویسندگان
چکیده
Both direct potentiometry and indirect potentiometry are currently used for Na+ testing in blood. These measurement techniques show good agreement as long as protein and lipid concentrations in blood remain normal. In severely ill patients, indirect potentiometry commonly leads to relevant errors in Na+ estimation: 25% of specimens show a disagreement between direct and indirect potentiometry, which is ≥4 mmol/L (mostly spuriously elevated Na+ level due to low circulating albumin concentration). There is a need for increased awareness of the poor performance of indirect potentiometry in some clinical settings.
منابع مشابه
The Effects of Sunlight on Blood Pressure and Plasma Concentration of Na+,K+,T3,T4 B.
ABSTRACT: The exposure to light affects the biological functions of human.This Study has investigated the effects of duration of sunlight exposure on blood pressure and plasma concentration of Na+,K+,T3, T4 The subjects are two groups of workers from a construction company in Kerman . The first group (experimental )having an average of 8 Workhours in Sunshine (n=84) and the Second one (contro...
متن کاملAssociation of the whole blood potassium polymorphism with resistant to saline in two sheep breeds of different climates of Iran
Abstract The whole blood potassium concentration has shown the bimodal distribution in sheep, which has been classified into LK and HK types; HK allele is recessive to LK with a single gene inheritance. This polymorphism showed different behavior in different environment, which could be due to adaptation process. This research was conducted on the Zel and kermani breed research station, which...
متن کاملExcessive testing in emergent evaluation of children with first unprovoked seizure
Abstract Backround: The first episode of an afebrile seizure is a common cause of admission of children to emergency departments. Alot of tests are routinely performed for these patients. The cost of such an evaluation is high and benefits are doubtful. We conducted this study in order to evaluate the results of the tests and find out what tests are necessary for children with first unp...
متن کاملInfluence of a Regular, Standardized Meal on Clinical Chemistry Analytes
BACKGROUND Preanalytical variability, including biological variability and patient preparation, is an important source of variability in laboratory testing. In this study, we assessed whether a regular light meal might bias the results of routine clinical chemistry testing. METHODS We studied 17 healthy volunteers who consumed light meals containing a standardized amount of carbohydrates, pro...
متن کاملComparison of Disc Diffusion and E test methods for Antimicrobial Susceptibility Testing Of Vancomycin in Coagulase Negative Staphylococcus Isolated from Blood Culture
Background and Objective: Reliable methods of detection of antimicrobial resistance are of paramount importance in the treatment and management of infections caused by coagulase negative staphylococci (CoNS). The objective of the present study was to compare and evaluate the performance of disc diffusion and E test (Epsilometer test) methods for antimicrobial testing of coagulase ne...
متن کامل