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1、Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,SHK,#,Diagnosis and Management of Shock,SHK,1,Objectives,Identify the major types of shock and principles of management,Review fluid resuscitation and use of vasopressor and inotropic
2、agents,Understand concepts of O,2,supply and demand,Discuss the differential diagnosis of oliguria,SHK,2,Shock,Always a symptom of primary cause,Inadequate blood flow to meet tissue oxygen demand,May be associated with hypotension,Associated with signs of hypoperfusion:mental status change,oliguria,
3、acidosis,SHK,3,Shock Categories,SHK,4,Cardiogenic,Hypovolemic,Distributive,Obstructive,Cardiogenic Shock,Decreased contractility,Increased filling pressures,decreased LV stroke work,decreased cardiac output,Increased systemic vascular resistance compensatory,Hypovolemic Shock,Decreased cardiac outpu
4、t,Decreased filling pressures,Compensatory increase in systemic vascular resistance,SHK,6,Distributive Shock,Normal or increased cardiac output,Low systemic vascular resistance,Low to normal filling pressures,Sepsis,anaphylaxis,neurogenic,and acute adrenal insufficiency,SHK,7,Obstructive Shock,Decre
5、ased cardiac output,Increased systemic vascular resistance,Variable filling pressures dependent on etiology,Cardiac tamponade,tension pneumothorax,massive pulmonary embolus,Cardiogenic Shock Management,Treat arrhythmias,Diastolic dysfunction may require increased filling pressures,Vasodilators if no
6、t hypotensive,Inotrope administration,Cardiogenic Shock Management,Vasopressor agent needed if hypotension present to raise aortic diastolic pressure,Consultation for mechanical assist device,Preload and afterload reduction to improve hypoxemia if blood pressure adequate,Hypovolemic Shock Management
7、,Volume resuscitation crystalloid,colloid,Initial crystalloid choices,Lactated Ringers solution,Normal saline(high chloride may produce hyperchloremic acidosis),Match fluid given to fluid lost,Blood,crystalloid,colloid,SHK,11,Distributive Shock Therapy,Restore intravascular volume,Hypotension despit
8、e volume therapy,Inotropes and/or vasopressors,Vasopressors for MAP 10,g/kg/min),vasoconstriction,Chronotropic effect,SHK,16,Inotropic Agents,Dobutamine,5-20,g/kg/min,Inotropic and variable chronotropic effects,Decrease in systemic vascular resistance,SHK,17,Inotropic/Vasopressor Agents,Norepinephri
9、ne,0.05,g/kg/min and titrate to effect,Inotropic and vasopressor effects,Potent vasopressor at high doses,SHK,18,Inotropic/Vasopressor Agents,Epinephrine,Both,and,actions for inotropic and vasopressor effects,0.1,g/kg/min and titrate,Increases myocardial O,2,consumption,SHK,19,Therapeutic Goals in S
10、hock,Increase O,2,delivery,Optimize O,2,content of blood,Improve cardiac output and blood pressure,Match systemic O,2,needs with O,2,delivery,Reverse/prevent organ hypoperfusion,Oliguria,Marker of hypoperfusion,Urine output in adults 2 hrs,Etiologies,Prerenal,Renal,Postrenal,SHK,21,Evaluation of Oli
11、guria,History and physical examination,Laboratory evaluation,Urine sodium,Urine osmolality or specific gravity,BUN,creatinine,SHK,22,Evaluation of Oliguria,Laboratory TestPrerenal ATN,Blood Urea Nitrogen/201020 Creatinine Ratio,Urine Specific Gravity1.020500350,Urinary Sodium(mEq/L)40,Fractional Exc
12、retion of Sodium(%)2,Therapy in Acute Renal Insufficiency,Correct underlying cause,Monitor urine output,Assure euvolemia,Diuretics not therapeutic,Low-dose dopamine may,urine flow,Adjust dosages of other drugs,Monitor electrolytes,BUN,creatinine,Consider dialysis or hemofiltration,SHK,24,Pediatric C
13、onsiderations,BP not good indication of hypoperfusion,Capillary refill,extremity temperature bettersigns of poor systemic perfusion,Epinephrine preferable to norepinephrine due to more chronotropic benefit,Fluid boluses of 20 mL/kg titrated to BP or total 60 mL/kg,before inotropes or vasopressors,SH
14、K,25,Pediatric Considerations,Neonates consider congenitalobstructive left heart syndrome as cause of obstructive shock,Oliguria,2 yrs old,urine volume 2 mL/kg/hr,Older children,urine volume 1 mL/kg/hr,SHK,26,Key Points,树立质量法制观念、提高全员质量意识。,11月-24,11月-24,Friday,November 8,2024,人生得意须尽欢，莫使金樽空对月。,14:20:4
15、6,14:20:46,14:20,11/8/2024 2:20:46 PM,安全象只弓，不拉它就松，要想保安全，常把弓弦绷。,11月-24,14:20:46,14:20,Nov-24,08-Nov-24,加强交通建设管理，确保工程建设质量。,14:20:46,14:20:46,14:20,Friday,November 8,2024,安全在于心细，事故出在麻痹。,11月-24,11月-24,14:20:46,14:20:46,November 8,2024,踏实肯干，努力奋斗。,2024年11月8日,2:20 下午,11月-24,11月-24,追求至善凭技术开拓市场，凭管理增创效益，凭服务树立
16、形象。,08 十一月 2024,2:20:46 下午,14:20:46,11月-24,严格把控质量关，让生产更加有保障。,十一月 24,2:20 下午,11月-24,14:20,November 8,2024,作业标准记得牢，驾轻就熟除烦恼。,2024/11/8 14:20:46,14:20:46,08 November 2024,好的事情马上就会到来，一切都是最好的安排。,2:20:46 下午,2:20 下午,14:20:46,11月-24,专注今天，好好努力，剩下的交给时间。,11月-24,11月-24,14:20,14:20:46,14:20:46,Nov-24,牢记安全之责，善谋安全之策，力务安全之实。,2024/11/8 14:20:46,Friday,November 8,2024,相信相信得力量。,11月-24,2024/11/8 14:20:46,11月-24,谢谢大家！,树立质量法制观念、提高全员质量意识。,11月-24,11月-24,Friday,November 8,2024,人生得意须尽欢，莫使金樽空对月。,14:20:46,14:20:46,14:20,11/
美国重症医学(FCCM)的基础教程-休克的诊断与治疗课件
