感染控制与患者安全
方法
- 对每位患者都从标准预防开始:手卫生、针对预期暴露的个人防护装备、安全使用锐器。
- 按传播途径追加预防措施:接触传播(隔离衣、手套)、飞沫传播(外科口罩)、空气传播(N95、负压病房)。
- 保持无菌物品的无菌状态:如有疑问就视为不无菌;更换,绝不擦拭。
- 预防环境中的伤害:防跌倒措施,约束仅作为最后手段,火灾时用 RACE 和 PASS。
- 核对给药的正确原则、两个身份识别信息,以及对高警示药物的额外保障;报告差错和险兆事件。
公式表、每个专题的关键方法步骤和 6 道练习题,完整解答附在最后。
How are neuromuscular blocking drugs, such as vecuronium, safely stored?
Which patient with a suspected infection meets the qSOFA criteria that signal a higher risk of a poor outcome?
Why is high-flow oxygen often humidified?
An older patient with diarrhoea for three days is dizzy on standing and passing small amounts of dark urine. What is the most likely problem?
由病毒把细菌基因从一个细菌转移到另一个细菌称为:
大多数外毒素与内毒素的区别特征是什么?
答案: A · Separate from other drugs, with a warning that they cause paralysis
Neuromuscular blockers stop breathing. They are stored apart from other drugs, often in sealed or colored containers with warnings such as “Paralyzing agent: causes respiratory arrest”.
答案: A · Respiratory rate 24/min, new confusion, systolic BP 95 mmHg
qSOFA scores one point each for a respiratory rate of 22/min or more, altered mental status and a systolic BP of 100 mmHg or less. Two or more points mean higher risk, so the first patient needs urgent escalation.
答案: D · To stop the airways and secretions from drying out
Dry gas at high flow dries the mucous membranes and thickens secretions. Humidification keeps the airways moist and secretions easier to clear.
答案: C · Dehydration from fluid loss
Diarrhoea causes loss of water and electrolytes. Postural dizziness and concentrated low-volume urine show dehydration, which needs fluid replacement, electrolyte checks and close monitoring.
答案: A · 转导
在转导中,噬菌体意外地包装了细菌 DNA,并将其递送给它感染的下一个细胞。转化是摄取游离 DNA,接合则依靠直接接触。
答案: D · 外毒素是蛋白质,可以制成类毒素疫苗
外毒素是分泌的蛋白质,作用具有特异性,且往往毒性极强;许多外毒素可以灭活成类毒素。内毒素是脂多糖,更耐热,不能制成类毒素。
ExamProblems · examproblems.com/courses/infection-control-and-patient-safety