Shock Flashcards
Stages of shock
Initial
Compensatory
Progressive
Refractory
What should we watch when it comes to shock?
Watching for vitals , checking for trends and progression
Knowing that it can go back ward n forward
Initial stage
No visible changes
Changes occurring at cellular level
Compensatory
Body compensating to restore tissue perfusion and oxygenation
Refractory
Total body failure
Shock definition
Inadequate tissue perfusion
Widespread inadequate oxygen supply to provide nutrients for cellular function
Class 1 shock of hypovolemia is in the initial stage of shock.. what is the blood loss up to ?
15%
Initial stage clinical finding
Subtle or no clinical manifestations
Hypoxia
( production of pyruvic and lactic acid)
Compensatory clinical findings
Confusion
Hypotension
Tachy cardia
Tachypnea
Cool clam
Urinary output decrease
Respiratory alkalosis
For each unit of blood loss is a
3% drop of the hematocrit
Skin in a septic shock pt
Warm and flushed
Skin in a neurogenic pt
Normothermic
In the compensatory stage there is a clas 2 shock due to hypovolemia.. what is the blood loss
15-30%
Why is urine output decreased in compensatory
Due to compensatory .. the kidneys might want to hang on to what it can
Progressive clinical findings
Lethargic and confused
Severe hypotension < 90/60
Tachycardic>150
Tachypneic ,shallow , crackles
Pao2<80mmhg
Paco2 >45mmhg
Mottling,petechia, caprefill >4
Anuria
Metabolic acidosis
GCS at the progressive stage
9-12
Pao2 at progressive
<80
Paco2 progressive
> 45 mmHg
Classic 3 shock hypovolemic in the progressive stage
Blood loss 30-40%
Intake goal in critical care
1/2/kg/hr
What is contraindicated in a shock pt
Trendelenburg position .. increases icp
What is important for hypovolemic pt
Get o2
Then fluids
Refractory clinical finding
Coma
Hypotension-need vasoconstrictors
Dysrhythmias- (possible MI)
Pulmonary edema , bronchconstriction (respfailure)
Hepatic failure
Renal failure
Tissue ischemia, necrosis
Anasarca
Profound metabolic acidosis
What can we do to treat hypotension in progressive stage?
Raising the legs, compressor, vasopressor
GCS for pt in refractory stage
8 or less
Dysrhythmias in refractory
Asystole
Check pulse
PVC then vtach
Bronchoconstriction
Anaphylactic reaction , obstructive, PE
how would you know hepatic and renal failure
Jaundice, decrease urinary output , BUN, creatine, ast, alt
What happens when a person is on epinephrine for too long
Necrosis
What can vasoconstrictors cause
Lack of cap refill