生理氯化钠溶液的说明书

2025-02-28 15:10:30
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回答1:

  氯化钠〔典〕〔基〕 Sodium Chloride   由普通食盐加以精制而得医用氯化钠。   【性状】无色透明立方形结晶或白色结晶粉末,无臭,味咸。露置于空气中有引湿性。易溶于水(1:3)、沸水(1:2.7)、甘油(1:10)中,难溶于醇。水溶液呈中性。   【药理及应用】正常人体内总钢量平均为150g,大部分(44%)以氯化钠形式存在于细胞外液,小部分(约9%)存在于细胞内。机体内恒定的渗透压为维持生命所必需,细胞外液中钠离子占阳离子含量90%。故钠是保持细胞外液渗透压和容量的重要成分。此外钠还以碳酸氢钠形式构成缓冲系统,对调节体液的酸碱平衡具有重要作用。血液中氯化钠的浓度经常保持于136~145mmol/L(0.6%)的水平。此浓度的钠是维持细胞兴奋性、神经肌肉应激性的必要条件。体内大量丢失钠可引起低钠综合征;表现为全身虚弱、表情淡漠、肌肉阵挛、循环障碍等,重则谵妄、昏迷以致死亡。氯化钠注射液可补充血容量和钠离子,用于各种缺盐性失水症(如大面积烧伤、严重吐泻、大量发汗、强利尿药、出血等引起)。在大量出血而又无法进行输血时,可输入其注射液以维持血容量进行急救。暑天高温下劳动,大量出汗,丢失氯化钠量很大,常引起“中暑”,可在饮水中加以0.1%~1%的氯化钠,或以含盐清凉片溶于开水内饮用。还用于慢性肾上腺皮质功能不全(阿狄森病)治疗过程中补充氯化钠,每日约10g。此外,生理盐水可用于洗伤口、洗眼及洗鼻等。   【注意】   (1)脑、肾、心脏功能不全及血浆蛋白过低者慎用。肺水肿病人禁用。   (2)生理盐水含钠、氯离子各154mmol,比血浆氯离子浓度高出50%,对已有酸中毒者如大量应用,可引起高氯性酸中毒。故可采用碳酸氢钠-生理盐水或乳酸钠-生理盐水。   (3)静滴时要注意无菌操作,严防污染,夏季开瓶后24小时,不宜再继续使用。   (4)如发生输液反应,应及时检查及对症处理,输入过量可引起组织水肿。   【制剂】注射液:为含0.9%氯化钠的灭菌水溶液。每支(瓶)2ml;10ml;250ml;500ml;1000ml。静滴或皮下滴注,剂量根据病情决定,一般每次500~1000ml。   浓氯化钠注射液:每支1g(10ml)。临用前稀释。   林格液(复方氯化钠注射液)Liquor Ringer   (Ringer’s Solution);灭菌溶液,每100ml中含氯化钠0.82~0.90g,氯化钾0.025~0.035g,氯化钙结晶0.03~0.036g,比生理盐水成分完全,可代替生理盐水用。   乳酸钠林格注射液:每100ml中,含氯化钙(结晶)0.02g,氯化钾0.03g,氯化钠0.6g,乳酸钠0.31g。可代替生理盐水用,特别适用于酸中毒或有酸中毒倾向的脱水病例。   葡萄糖氯化钠注射液:每1000ml中含葡萄糖5%及氯化钠0.9%。每瓶250ml;500ml;1000ml。   直肠透析液(直肠灌肠液):每100ml中含氯化钠0.6g,碳酸氢钠0.2g,氯化钾0.048g,硫酸镁0.031g,乳酸钙0.077g,葡萄糖1.5g。用于治疗肾盂肾炎、尿毒症等的酸中毒,改善体内电解质平衡。一般每次用1000ml,以每分钟15~20滴的速度缓慢滴入直肠。天冷时可将溶液微温后应用。   清凉盐片(盐汽水片):每片含氯化钠0.65g,酒石酸(或拘橼酸)0.07g,糖精0.007g。作为解渴饮料并补充盐分。1次1~2片,以适量冷开水溶解后供高温车间饮用。   复方沸腾散(盐汽水散):由氯化钠2.5g,碳酸氢钠7.8g、酒石酸7.2g、糖精钠0.2g配成1剂,并能补充体内的盐分和水分,用时以适量冷开水溶解1剂服下。   口服补盐液:每升含氯化钠3.5g,氯化钾1.5g,碳酸氢钠2.5g(或拘橼酸钠2.9g),无水葡萄糖20g,每次口服500ml治疗和预防急性腹泻造成的脱水。

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