NCLEX 风格的优先排序与委派:速成包

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。

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1公式与方法

优先排序与委派

方法

  1. 问自己:如果什么都不做,什么会最快伤害患者。
  2. 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。
  3. 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。
  4. 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。
  5. 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。

感染控制与患者安全

方法

  1. 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。
  2. 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)。
  3. 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。
  4. 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。
  5. 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。

实验室检查值与电解质

方法

  1. 把数值与本实验室自己的参考范围比较,再与患者的基线和趋势比较。
  2. 检查标本:溶血、延迟,或在静脉输液附近采血都可能得出错误结果。
  3. 把数值与其典型体征以及引起它的药物和疾病联系起来。
  4. 注意相互作用:低钾或低镁会增加地高辛中毒的风险;脱水会使锂浓度升高。
  5. 对患者采取行动:评估,血药浓度不安全时暂停用药,复述危急值并通知开医嘱的医生。

内外科护理:心血管与呼吸

方法

  1. 说出问题所在:泵衰竭、动脉阻塞、节律、血栓、气道狭窄、感染或设备问题。
  2. 先检查危险征象:低氧、低血压、胸痛、新出现的意识模糊、冰冷无脉搏的肢体。
  3. 让氧疗与患者相匹配:大多数人为 94–98%,有 CO₂ 潴留风险者为 88–92%。
  4. 把每种药物与其检测和风险联系起来:华法林与 INR,肝素与 aPTT 和血小板,利尿剂与血钾。
  5. 选择安全的第一步措施,然后升级处理并重新评估。

内外科护理:神经、内分泌与肾脏

方法

  1. 对每位新出现意识模糊、乏力或癫痫发作的患者都检查血糖。
  2. 把意识水平作为脑部问题最早的警示;瞳孔变化和库欣三联征出现得较晚。
  3. 对于糖尿病急症,要区分 DKA(酮体、酸中毒)和 HHS(渗透压很高、脱水);先补液。
  4. 对于钠和水,要判断是 ADH 过多(SIADH)还是缺乏(尿崩症),并缓慢纠正慢性变化。
  5. 对于肾脏问题,把原因分为肾前性、肾性或肾后性,并监测血钾和液体。

内外科护理:消化、围手术期与肿瘤

方法

  1. 想一想可能隐藏着什么:内出血、无发热的感染、SpO₂ 正常背后的通气不足。
  2. 利用术后的时间来缩小并发症的范围:出血在数小时内,胸部问题在数天内,伤口和吻合口漏出现得更晚。
  3. 对于疼痛,要评估、用多模式镇痛治疗、重新评估,并且在每次使用阿片类药物时监测镇静程度。
  4. 对于癌症患者,把低谷期的任何疾病都当作中性粒细胞减少性脓毒症处理,并了解肿瘤急症。
  5. 对于烧伤,只计算浅二度/深二度和三度的面积,从烧伤的时刻开始计算 Parkland 时间,并根据尿量调整。

2练习题

1.优先排序与委派中等

Using the Emergency Severity Index, which level fits a 70-year-old with chest pressure that suggests a heart attack, but normal vital signs?

  1. ALevel 2
  2. BLevel 1
  3. CLevel 5
  4. DLevel 4
2.优先排序与委派困难

Which patient is the most appropriate to assign to an LPN/LVN?

  1. AA patient who has just arrived from the emergency department with pneumonia and confusion
  2. BA patient with a tracheostomy placed this morning who is coughing up blood
  3. CA patient with a long-standing tracheostomy who needs routine suctioning and care
  4. DA patient on a new IV medication that needs frequent titration
3.感染控制与患者安全中等

A patient wants to use their own electric hair dryer in the hospital. What is correct?

  1. AIt can be plugged into an extension lead under the bed
  2. BIt can be used straight away if it looks new
  3. CIt can be used in the bathroom near the sink if the patient is careful
  4. DIt is checked for electrical safety according to hospital policy before use
4.感染控制与患者安全困难

A patient with pulmonary tuberculosis has been on treatment. Which findings usually allow airborne isolation to end?

  1. AThe patient has been in hospital for one week and has taken every dose of medicine
  2. BOne negative chest x-ray after starting treatment
  3. CThree negative sputum smears, clinical improvement and continued therapy
  4. DThe cough has stopped, even with no sputum tests
5.实验室检查值与电解质中等

一名患者的血小板计数为 18 × 10³/µL。哪项护理措施是恰当的?

  1. A患者头痛时给予处方的阿司匹林
  2. B为准确起见,每四小时经直肠测体温
  3. C使用软毛牙刷、电动剃须刀,不做肌内注射
  4. D鼓励每天使用牙线两次,并用锋利的剃刀刮胡子
6.实验室检查值与电解质困难

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?

  1. A增强华法林作用的药物相互作用
  2. B抗生素治愈了患者对抗凝的需要
  3. C患者吃了更多富含维生素 K 的食物
  4. D唯一可能的解释是实验室误差
7.临床护理中等

How is Helicobacter pylori infection usually treated?

  1. AA combination of antibiotics with a proton pump inhibitor
  2. BA single dose of paracetamol and a bland diet for a week
  3. CAntacids alone, taken after every meal for a month
  4. DSurgery to remove the stomach
8.临床护理困难

A patient is admitted with suspected meningococcal disease. Which infection control measure is usually needed?

  1. AIsolation only after the patient has gone home
  2. BDroplet precautions until 24 hours of effective antibiotics have been given
  3. CNo precautions, because it is not contagious
  4. DAirborne precautions with a negative-pressure room for the whole hospital stay
9.内外科护理:心血管与呼吸中等

A patient taking simvastatin drinks a large glass of grapefruit juice every morning. Why is this a concern?

  1. AIt raises statin levels and the risk of muscle damage
  2. BIt stops the statin from being absorbed from the gut at all
  3. CIt turns the statin into a blood thinner
  4. DIt causes the cholesterol level to rise sharply
10.内外科护理:心血管与呼吸困难

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?

  1. AAn acute asthma attack
  2. BIdiopathic pulmonary fibrosis
  3. CCommunity-acquired pneumonia
  4. DSpontaneous pneumothorax
11.内外科护理:神经、内分泌与肾脏中等

Why is IV calcium gluconate given in severe hyperkalaemia?

  1. AIt binds potassium in the gut
  2. BIt removes potassium through the kidneys
  3. CIt moves potassium into the cells
  4. DIt protects the heart from arrhythmias
12.内外科护理:神经、内分泌与肾脏困难

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?

  1. AUrgent dialysis, with cardiac monitoring meanwhile
  2. BA routine dialysis session at the next planned slot
  3. COral potassium supplements and rest
  4. DLarge IV fluid boluses to improve the circulation
13.内外科护理:消化、围手术期与肿瘤中等

哪种电解质模式是肿瘤溶解综合征的典型表现?

  1. A钾和磷酸盐降低,钙升高
  2. B钾、磷酸盐和尿酸升高;钙降低
  3. C钠和钙升高,尿酸水平降低
  4. D钾低、磷酸盐低、尿酸低
14.内外科护理:消化、围手术期与肿瘤困难

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?

  1. AReassure the patient that this pain is expected
  2. BApply ice and a tighter bandage to reduce the swelling
  3. CRaise the arm as high as possible and give a further dose of opioid
  4. DLoosen any tight dressing, keep the arm at heart level and escalate

3溶液

1.优先排序与委派

答案: A · Level 2

为什么是这个答案

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

A · Level 2
2.优先排序与委派

答案: C · A patient with a long-standing tracheostomy who needs routine suctioning and care

为什么是这个答案

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

C · A patient with a long-standing tracheostomy who needs routine suctioning and care
3.感染控制与患者安全

答案: D · It is checked for electrical safety according to hospital policy before use

为什么是这个答案

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

D · It is checked for electrical safety according to hospital policy before use
4.感染控制与患者安全

答案: C · Three negative sputum smears, clinical improvement and continued therapy

为什么是这个答案

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 · Three negative sputum smears, clinical improvement and continued therapy
5.实验室检查值与电解质

答案: C · 使用软毛牙刷、电动剃须刀,不做肌内注射

为什么是这个答案

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

C · 使用软毛牙刷、电动剃须刀,不做肌内注射
6.实验室检查值与电解质

答案: A · 增强华法林作用的药物相互作用

为什么是这个答案

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 · 增强华法林作用的药物相互作用
7.临床护理

答案: A · A combination of antibiotics with a proton pump inhibitor

为什么是这个答案

Eradication therapy combines a PPI with two antibiotics for a set course. Completing the course is important for success.

答案

A · A combination of antibiotics with a proton pump inhibitor
8.临床护理

答案: B · Droplet precautions until 24 hours of effective antibiotics have been given

为什么是这个答案

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

B · Droplet precautions until 24 hours of effective antibiotics have been given
9.内外科护理:心血管与呼吸

答案: A · It raises statin levels and the risk of muscle damage

为什么是这个答案

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

A · It raises statin levels and the risk of muscle damage
10.内外科护理:心血管与呼吸

答案: B · Idiopathic pulmonary fibrosis

为什么是这个答案

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

B · Idiopathic pulmonary fibrosis
11.内外科护理:神经、内分泌与肾脏

答案: D · It protects the heart from arrhythmias

为什么是这个答案

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

D · It protects the heart from arrhythmias
12.内外科护理:神经、内分泌与肾脏

答案: A · Urgent dialysis, with cardiac monitoring meanwhile

为什么是这个答案

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

A · Urgent dialysis, with cardiac monitoring meanwhile
13.内外科护理:消化、围手术期与肿瘤

答案: B · 钾、磷酸盐和尿酸升高;钙降低

为什么是这个答案

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

B · 钾、磷酸盐和尿酸升高;钙降低
14.内外科护理:消化、围手术期与肿瘤

答案: D · Loosen any tight dressing, keep the arm at heart level and escalate

为什么是这个答案

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.

答案

D · Loosen any tight dressing, keep the arm at heart level and escalate

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