优先排序与委派
方法
- 问自己:如果什么都不做,什么会最快伤害患者。
- 应用 ABC(心脏骤停时为 C-A-B),然后是 Maslow 需求层次:生理需要先于安全,安全先于心理需要。
- 比较各选项:急性先于慢性,不稳定先于稳定,意外先于预期,全身性先于局部,并将每项发现与患者的基线对照。
- 除非是紧急情况,否则先评估再行动;然后选择其他步骤所依赖的那一步。
- 委派时核对五项正确:任务、情境、人员、指示和监督。评估、宣教和评价仍由注册护士负责。
公式表、每个专题的关键方法步骤和 14 道练习题,完整解答附在最后。
Using the Emergency Severity Index, which level fits a 70-year-old with chest pressure that suggests a heart attack, but normal vital signs?
Which patient is the most appropriate to assign to an LPN/LVN?
A patient wants to use their own electric hair dryer in the hospital. What is correct?
A patient with pulmonary tuberculosis has been on treatment. Which findings usually allow airborne isolation to end?
一名患者的血小板计数为 18 × 10³/µL。哪项护理措施是恰当的?
一名服用华法林、INR 稳定在 2.4 的患者开始使用环丙沙星等抗生素疗程。一周后 INR 为 4.6。最可能的解释是什么?
How is Helicobacter pylori infection usually treated?
A patient is admitted with suspected meningococcal disease. Which infection control measure is usually needed?
A patient taking simvastatin drinks a large glass of grapefruit juice every morning. Why is this a concern?
An older ex-smoker has a dry cough and worsening breathlessness over a year, finger clubbing and fine "Velcro-like" crackles at both bases at the end of inspiration. Which condition is most likely?
Why is IV calcium gluconate given in severe hyperkalaemia?
A haemodialysis patient missed their last two sessions. They are breathless, with crackles, and the potassium is 6.9 mmol/L. What is the priority?
哪种电解质模式是肿瘤溶解综合征的典型表现?
After forearm fracture surgery, a patient has severe pain not eased by opioids, made worse by passively moving the fingers. What should the nurse do?
答案: A · Level 2
Possible acute coronary syndrome is a high-risk situation, so the patient is ESI level 2 and should be seen very soon. Level 1 is kept for patients who need an immediate life-saving intervention.
答案: C · A patient with a long-standing tracheostomy who needs routine suctioning and care
Routine tracheostomy care for a stable, long-term patient fits the LPN/LVN role in most settings. Fresh or bleeding tracheostomies, new admissions and titrated IV drugs need RN assessment.
答案: D · It is checked for electrical safety according to hospital policy before use
Electrical items from home can be faulty and cause shocks or fires. Policies usually require them to be inspected before use, and extension cords near patients are avoided.
答案: C · Three negative sputum smears, clinical improvement and continued therapy
Airborne precautions usually continue until the patient is on effective therapy, is improving clinically and has three negative sputum smears for acid-fast bacilli, according to policy.
答案: C · 使用软毛牙刷、电动剃须刀,不做肌内注射
严重血小板减少会因轻微外伤而出血。出血预防措施包括使用软毛牙刷、电动剃须刀,不做肌内注射或直肠操作,并避免使用阿司匹林和非甾体抗炎药。核对依据: Bleeding and Bruising (Thrombocytopenia) and Cancer Treatment · National Cancer Institute (NIH) (2022); Platelet Tests · MedlinePlus (NIH) (2024)
答案: A · 增强华法林作用的药物相互作用
一些抗生素通过减少华法林的分解或改变产生维生素 K 的肠道细菌来增强华法林的作用。开始使用此类药物时,应更频繁地监测 INR。饮食中维生素 K 增多则会使 INR 降低。核对依据: Taking warfarin · MedlinePlus (NIH) (2025)
答案: A · A combination of antibiotics with a proton pump inhibitor
Eradication therapy combines a PPI with two antibiotics for a set course. Completing the course is important for success.
答案: B · Droplet precautions until 24 hours of effective antibiotics have been given
Neisseria meningitidis spreads through droplets and close contact. Droplet precautions are used until 24 hours of effective antibiotics, and public health arranges prophylaxis for close contacts.
答案: A · It raises statin levels and the risk of muscle damage
Grapefruit juice inhibits the CYP3A4 enzyme, increasing levels of drugs such as simvastatin and some calcium channel blockers. Higher statin levels raise the risk of myopathy. Patients are advised to avoid large amounts or choose a statin not affected.
答案: B · Idiopathic pulmonary fibrosis
Idiopathic pulmonary fibrosis causes progressive breathlessness, a dry cough, clubbing and fine end-inspiratory crackles. Spirometry shows a restrictive pattern and CT shows fibrosis. Treatment includes antifibrotic drugs, pulmonary rehabilitation, oxygen and palliative care.
答案: D · It protects the heart from arrhythmias
Calcium stabilises the cardiac cell membrane and reduces the risk of arrhythmias within minutes. It does not change the potassium level, so other treatments are needed to shift and remove potassium.
答案: A · Urgent dialysis, with cardiac monitoring meanwhile
Missing dialysis causes fluid overload and hyperkalaemia, both of which can be fatal. The patient needs cardiac monitoring, emergency treatment of the potassium and urgent dialysis to remove fluid and potassium.
答案: B · 钾、磷酸盐和尿酸升高;钙降低
肿瘤溶解释放钾、磷酸盐和核酸(使尿酸升高)。磷酸盐结合钙,使其降低。磷酸钙和尿酸结晶可损伤肾脏。
答案: D · Loosen any tight dressing, keep the arm at heart level and escalate
These are early signs of compartment syndrome, where raised pressure in a muscle compartment reduces blood flow. Constrictive dressings are released, the limb is kept at heart level and urgent surgical review is needed, as fasciotomy may be required.
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