نتایج جستجو برای: arterial blood sampling
تعداد نتایج: 967021 فیلتر نتایج به سال:
background: learning of clinical skills in the intensive care unit (icu) is important for nursing students. “direct observation of procedural skills (dops)” is a modified objective method in the field of medical sciences, and we conducted this study with the aim of investigating the effect of evaluation using dops method on learning practical skills among nursing students in the icu. materials ...
BACKGROUND For positron emission tomography (PET) kinetic modelling, an accurate determination of the arterial input function is required. In this study, a blood sampling system was developed and tested using different radiotracers in rats. METHODS The detector consists of pairs of lutetium yttrium oxyorthosilicate (LYSO) detectors, photomultiplier tubes and lead shield assembled within a ste...
Introduction: Hypertension is one of the most common and important disease factors imposed by the modern lifestyle, in particular by reduced physical activity and an unbalanced lipid-rich diet. One of the best methods for treatment of hypertension is the use of medical herbs that have moderate effects on blood pressure such as Olive (Olea europea L.). Therefore, the purpose of this study was to...
Intr Maintaining the patency of arterial lines is essential for obtaining accurate physiological measurements, enabling blood sampling and minimising the time, expense and patient discomfort incurred by line replacement. HS is commonly used to maintain and prolong arterial line patency. In 2008, a National Patient Safety Agency alert advised organisations to minimise its use for this purpose fo...
Background and Objective: Hypoxia is a major problem in patients undergoing ventilation due to the high bronchioles secretion. This study aimed to determine the effect of expiratory rib-cage compression prior to endotracheal suctioning on arterial blood oxygenation (SpO2) in patients undergoing mechanical ventilation. Materials and Methods: This clinical trial with a crossover design included 5...
Indicator dilution techniques for measuring blood flow have existed for more than 100 years. Indicators may be either intravascular, or freely diffusible. Early techniques establishing the mathematical framework for flow (the Fick principle, Kety–Schmidt method, and central volume principle) were mainly based on arterial and venous blood sampling. Tissue perfusion measured by MR techniques may ...
background: diabetic patients have a higher prevalence of non-dipping pattern in blood pressure (bp) than general population. non-dipping arterial pressure pattern is associated with increased cardiovascular risk. the objective of this study was to investigate the association between the clinical and paraclinical characteristics of the diabetic patients with circadian bp variability. m aterials...
Background: Physical activity has been recognized as one of the non-pharmacological methods in the treatment of hypertensive disorders. This study aims to compare the effects of aerobic exercise performed and alternative (AI) and constant intensities (CI) in hypertensive individuals. Methods: In this semi-experimental study, subjects were 20 hypertensive women who were asked to fill in the q...
OBJECTIVE Iodine-123 (123I)-labeled N-isopropyl-4-iodoamphetamine (IMP) has been used as a cerebral blood flow (CBF) tracer for single-photon emission computed tomography (SPECT). An autoradiographic (ARG) method has been developed for the quantitation of CBF by IMP and SPECT. Two IMPs (IMPA and IMPB) produced by different radiopharmaceutical companies are marketed in Japan. In the present stud...
To measure regional cerebral blood flow (rCBF) by blood sampling using 99mTc-ECD we devised a method of measuring the radioactive concentration in arterial blood sample with a gamma camera. In this method the head and a blood sample are placed within the same visual field to record the SPECT data of both specimens simultaneously. The results of an evaluation of the counting rate performance, ap...
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