to evaluate pathogenicity of 3 chicken anemia virus isolates-cv1, cv2 and cv3 respectively - the current experiment carried out. after tittering of the viruses, 30 one day old spf chicks were grouped and intramuscularly inoculated with each isolate in a separate group. two other groups as positive and control groups were inoculate with a live vaccine virus and normal saline respectively. during...

BACKGROUND Abnormal hematocrit levels may interfere with glucose readings of patient self-assessment blood glucose (BG) meters. The aim of this laboratory investigation was to assess the potential influence of hematocrit variations on a variety of BG meters applying different measurement technologies. METHODS Venous heparinized blood was manipulated to contain three different BG concentration...

BACKGROUND Calculation of cardiovascular magnetic resonance (CMR) extracellular volume (ECV) requires input of hematocrit, which may not be readily available. The purpose of this study was to evaluate the diagnostic accuracy of ECV calculated using various noninvasive measures of hematocrit compared to ECV calculated with input of laboratory hematocrit as the reference standard. METHODS One h...

The present paper deals with a mathematical model of blood flow through narrow circular tube. The model consists of a core region of suspension of all the erythrocytes assumed to be a power law fluid and a peripheral cell-depleted layer of plasma as a Newtonian fluid. The system of differential equations has been solved analytically. The expressions for velocity profile, Bluntness parameter, fl...

OBJECTIVE "Reference ranges" are developed when it is impossible or inappropriate to establish "normal ranges" by drawing blood on healthy normal volunteers. Reference ranges for the hematocrit and the blood hemoglobin concentration of newborn infants have previously been reported from relatively small sample sizes by using measurement methods that now are considered outmoded. METHODS We soug...

The aggregation, dispersion and deformation of cellular components of blood in the vasculature affect blood rheology to a greater extent. At low shear rate erythrocytes tend to aggregate and form rouleaux and at a high shear rate they dis perse and get deformed into ellipsoid with their long axis aligned in the flow direction. While rouleaux formations increase viscosity, dispersion and deforma...

BACKGROUND: Less is known about the influence of hematocrit detection methodology on transfusion triggers. Therefore, the aim of the present study was to compare two different hematocrit-assessing methods. In a total of 50 critically ill patients hematocrit was analyzed using (1) blood gas analyzer (ABLflex 800) and (2) the central laboratory method (ADVIA(R) 2120) and compared. FINDINGS: Bland...

background: physicians in islamic countries believe that fasting in ramadan is equal to ingestion of thirty pills regularly ingested every year for clearing the blood and fortifying the tissues. the effects of islamic fasting on physiologic functions in normal conditions have been considered in different studies and different topics. this study was to determine the quantitative changes of hemog...