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SOPN SHOCK
Question | Answer |
---|---|
a syndrome resulting from sustained, inadequate tissue perfusion at the cellular and organ level | Shock |
What are the 3 stages of shock | compensatory, progressive, and refractory |
what is triggered by a decrease in cardiac output and a decrease in tissue perfusion = increase in lactic acid production | Stage one - compensatory |
an increase in the force of contraction of the heart = | increase in cardiac output |
an increased shunting of the blood to the vital organs = | signs of cyanosis or pallor, pale, and cool moist skin |
decreased kidney perfusion = | decreased urinary output |
decreased blood perfusion to the liver = | stimulates production of glucose for increased energy production |
What happens when the compensatory mechanism begins to fail to maintain BP and adequately perfuse VITAL organs, therefore, vital organs begin to fail due to lack of perfusion | stage 2 or PROGRESSIVE STAGE |
irreversible stage, body does not respond to interventions, multi organ failure with continured decrease in BP *death is imminent* | 3rd stage - REFRACTORY STAGE OF SHOCK |
name the types of shock | Hypovolemic, cardiogenic, septic, neurogenic, and anaphylactic |
what is caused by a lack o fblood, plasma, or interstitial fluid | Hypovolemic shock |
give examples of hypovolemic shock | hemorrhage, diarrhea, burns, draining wounds, dehydration |
How would you manage hypovolemic shock | control source of blood loss and attempt to reverse the loss via transfusion, lactated ringers solution, shock position ect.... |
the hearts ability to pump is extremely impaired .....severe pump failure....therefore decrease in cardia output | cardiogenic shock |
what could cause cardiogenic shock | myocardial infarction "MI" causing CHF this is the #1 cause!!! |
balloon inserted via femoral artery for temporary circulatory assistance inflates during diastole and deflates during systole | Intra-aortic balloon pump |
characterized by hypotension and redistribution of blood flow- some areas are underperfused and some are overperfused | Septic Shock |
What causes sepsis | toxins from micro-organisms that are released into the bloodstream |
Massive vasodilation and redistribution of blood | septic shock |
massive vasodilation except to the vital organs causing a decrease in BP, skin warm and flushed, with increased heart rate, temperature, WBC count, and decreased LOC | Hyperdynamic Shock |
decreased cardiac output due to myocardial suppression, profound hypotension, ventricular failure, tachycardia, weak and thready pulse, SKIN PALE, COOL, & CLAMMY, decreased temp, patient unresponsive, increasesd BUN & Cr | Hypodynamic Shock |
1st line of defense with Septic Shock | IV antibiotics |
massive vasodilation resulting from loss or decrease in sympathetic nervous system can be associated with injury or disease of the spinal cord and/or brain stem also from general or spinal anesthesia | neurogenic shock |
Vasopressors used in the management of neurogenic shock | Dopamine or dobutamine |
what is used for bradycardia when dealing with neurogenic shock | atropine |
a sudden life threatening, hypersensitivity reaction to an antigen characterized by vasodilation and increased capillary permeability unless Rx'd immediatly could DIE!!! | anaphylactic shock |
what causes the following reactions: bronchial constriction, vasodilation: decreased BP, increased capillary permeability | HISTAMINES |
What are the main signs and symptoms of anaphylactic shock | INCREASED HEART RATE AND INCREASED PULSE *feelings of anxiety, uneasiness* |
#1 method to manage anaphylactic shock: a vasoconstrictor that improves blood flow to the heart and brain | epinephrine |
what helps reverse vasodilation and reverses bronchospasm | epinephrine |
what is given during anaphylactic shock to increase BP | Dopamine |
what is the most frequent cause of cardiac arrest | MYOCARDIAL INFARCTION "MI" from coronary artery disease |
what causes the cardiac ischemia from occulded coronary arteries | artherosclerosis |
purpose is antifibrillatory - used to treat ventricular fibrillation that does not respond to epinephrine | Lidocaine |
purpose - used to treat symptomatic bradycardia - LOW HEART RATE | Atropine |
purpose - used to treat shock and correct hemodynamic imbalances - improves perfusion to vital organs, increases CO and corrects hypotension | DOPAMINE |
purpose - used for life threatening ventricular arrythmias, works by prolonging refractory period, inhibits adrenergic stimulation, slows rate, increases "PR" interval | AMIODARONE |