护理干预在小儿核磁共振检查中的应用

核磁共振成像(MRI)是一种安全又比较先进的影像学检查方法,因其具有鲜明的软组织对比,多参数、多方位的成像优势,以及无骨骼伪影干扰和血管流空效应等特性[1],特别是没有放射线,对人体没有损害,所以在小儿患者的影像学检查中显示出明显的优越性.

核磁检查中的语言护理

病人在做核磁检查时,护士面对病人的直接护理主要是通过语言来实施的.因此护士要善于与病人和家属沟通,做耐心解释,准确引导,使病人消除恐惧、紧张心理,保持良好的心境;同时为病人提供一个清洁、舒适、安静的检查环境.在做核磁检查时护士的言语少,或者告知病人不详细,病人没有充分的心理准备,加重了病人的心理负担,不利于病人的康复,很容易引起护理纠纷[1].为此,我科护理人员在为病人做核磁检查时采用了规范化的语言护理,受到了病人的好评.现将体会介绍如下.

The aim of the study was to evaluate the effect of adding acrylamide monomer (AAm) on the characterization, flexural strength, flexural modulus and thermal degradation temperature of poly(methyl methacrylate) (PMMA) denture-base resins. Specimens (n510) were fabricated from a conventional heat-activated QC-20 (Qc-) and a microwave heat-activated Acron MC (Ac-) PMMA resins. Powder/liquid ratio followed the manufacturer’s instructions for the control groups (Qc-c and Ac-c) and for the copolymer groups, the resins were prepared with 5%(25), 10%(210), 15%(215) and 20%(220) acrylamide contents, according to the molecular weight ratio, respectively. The flexural strength and flexural modulus were measured by a three-point bending test. The data obtained were statistically analyzed by Kruskal-Wallis test (a50.05) to determine significant differences between the groups. The chemical structures of the resins were characterized by the nuclear magnetic resonance spectroscopy. Thermal stabilities were determined by thermogravimetric analysis (TGA) with a heating rate of 10 6C?min21 from 35 6C to 600 6C. Control groups from both acrylic resins showed the lowest flexural strength values. Qc-15 showed significant increase in the flexural strength when compared to Qc-c (P,0.01). Ac-10 and Ac-15 showed significance when compared to Ac-c (P,0.01). Acrylamide incorporation increased the elastic modulus in Qc-10, Qc-15 and Qc-20 when compared to Qc-c (P,0.01). Also significant increase was observed in Ac-10, Ac-15 and Ac-20 copolymer groups when compared to Ac-c (P,0.01). According to the 1H-nuclear magnetic resonance (NMR) results, acrylamide copolymerization was confirmed in the experimental groups. TGA results showed that the thermal stability of PMMA is increased by the insertion of AAm.