Medicine - Adams Flashcards
What is the first thing you should do for a patient in shock?
GIVE FLUIDS!
Then vasopressor agents (NE or epi, dompaine, or dobutamine)
What are the 4 types of shock?
Cardiogenic
Hypovolemic
Extracardiac (outflow obstruction)
Distributive/Dissociative (increased area for blood to disperse to)
Describe Cardiogenic Shock
Causes of decreased CO due to pathology of heart
Problem with delivery
SUCH AS: Acute MI Arrhythmia (too fast or too slow) Out flow obstruction= aortic stenosis, hypertrophic cardiomyopathy) Mitral regurgitation, VSD
Describe Extracradiac Shock
Outflow obstruction= caused of decreased CO are due to external pathology
Problem with delivery
Pulmonary Emboli
Pericardial Tamponade
Constrictive pericarditis
Pulmonary hypertension
Describe Hypovolemic Shock
Lack of fluid = decreased CO due to decreased preload
Problem with delivery
Diarrhea, vomiting, diuretics, sweating
Hemorrhage
Burns
Ascities
Describe Distributive/Dissociate shock
Increased area for blood to disperse too
Increased CONSUMPTION/DEMAND
High output shock
Initially CO is increased then it fails Decreased SVR or mal-distribution Septic Shock Spinal Cord injury Anaphylaxis Cyanide Carbon monoxide
What is the shock index?
heart rate/ systolic pressure
Normal index = .5-.7
Greater than 1 is ABNORMAL! (increased mortality)
What is a good marker for monitoring the course of shock?
Lactic Acid
Also:
Level of alertness
Urine Output
What should you think in a shock patient that has flushed with warm skin?
Distributive/Dissociative shock
Increased consumption!
Spinal cord injury, septic shock, anaphylactic shock
What type of shock is common post operatively?
Extracardiac - PE!
What should you suspect is there are many other neurologic symptoms? (numbness in limbs, etc)
Distributive/Dissociative
Spinal cord injury
“Distant heart sounds” is a give away for what?
Cardiac tamponade!
Extracardiac (outflow obstruction) Shock
What are some typical lab findings in shock?
HYPERkalemia (high K) HYPOnatremia (Low Na) Metabolic acidosis HYPERglycemia Lactic Acidosis
What are classifications of systemic inflammatory response syndrome?
REQUIRES at least TWO: Temp 38 Pulse > 90 Respiration > 20 PCO2 12000
What is shock?
hypoperfusion of vital organs