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Arterial blood gases (ABG) are essential for assessment of patients with severe illness, but sampling is difficult in some settings and more painful than for peripheral venous blood gas (VBG). Venous to Arterial Conversion (v-TAC; OBIMedical ApS, Denmark) is a method to calculate ABG values from a VBG and pulse oximetry (SpO2). The aim was to validate v-TAC against ABG for measuring pH, carbon dioxide (pCO2) and oxygenation (pO2).
This article was published in the following journal.
Name: PloS one
Traditional validation of umbilical cord blood samples with positive veno-arterial (V-A) ΔpH and A-V ΔpCO values confirms the source of samples, where negative Δvalues represent mix-up of samples. ...
Reference intervals for arterial and venous umbilical cord blood gas (UCBG) parameters are scarce, are mainly focused on pH, pO2, pCO2 and base deficit, and are usually assessed using parametric tests...
This study aimed to compare the prognostic performance of the ratio of mixed and central venous-arterial CO tension difference to arterial-venous O content difference (Pv-aCO/Ca-vO and Pcv-aCO/Ca-cvO,...
Arteries and veins are formed independently by different types of endothelial cells (ECs). In vascular remodeling, arteries and veins become connected and some arteries become veins. It is unclear how...
Vital signs are included in the determination of shock secondary to hemorrhage; however, more granular predictors are needed. We hypothesized that fast Fourier transformation (FFT) would have a greate...
Objective: Arterial blood gas (ABG) is essential in the clinical assessment of potential acutely ill patients venous to arterial conversion (v-TAC), a mathematical method, has recently bee...
The purpose of this study is to determine the correlation between pH, base deficit, and lactate values when comparing venous and arterial blood samples in the pediatric population.
Dynamic arterial elastance (Eadyn) has been proposed as an indicator of arterial tone that can predict norepinephrine-dependent arterial pressure. Eadyn is calculated using the ratio of re...
The study hypothesis is that in critically ill patients there is significant differences between electrolyte levels measured using blood gas analysers and by laboratory techniques, and bet...
Blood gases are widely used in emergency and resuscitation services and are the key examination for exploring acid-base balance disorders (using pH, PaCO2 and HCO3 ) and gas exchange disor...
The number of RED BLOOD CELLS per unit volume in a sample of venous BLOOD.
Method for determining the circulating blood volume by introducing a known quantity of foreign substance into the blood and determining its concentration some minutes later when thorough mixing has occurred. From these two values the blood volume can be calculated by dividing the quantity of injected material by its concentration in the blood at the time of uniform mixing. Generally expressed as cubic centimeters or liters per kilogram of body weight.
Impaired venous blood flow or venous return (venous stasis), usually caused by inadequate venous valves. Venous insufficiency often occurs in the legs, and is associated with EDEMA and sometimes with VENOUS STASIS ULCERS at the ankle.
The number of LEUKOCYTES and ERYTHROCYTES per unit volume in a sample of venous BLOOD. A complete blood count (CBC) also includes measurement of the HEMOGLOBIN; HEMATOCRIT; and ERYTHROCYTE INDICES.
The presence of an increased amount of blood in a body part or an organ leading to congestion or engorgement of blood vessels. Hyperemia can be due to increase of blood flow into the area (active or arterial), or due to obstruction of outflow of blood from the area (passive or venous).