Cardiovascular related SHOCKS Flashcards
Obstruction during pregnancy..
Roll pt on her side
Uterus 30lbs - flat on back - uterus rests on vertebral column and the uterus is the vena cava - becomes compressed
Tension Pneumo tx
Chest tube/Needle Decompression
Squeezes the heart
Cardiac Tamponade tx
Pericardiocentesis
Fluid collects around heart - blood can’t get in
Pulmonary Embolism tx
Thrombolytics
Aortic aneurysm tx
Surgical intervention
Aortic Stenosis tx
Surgical Intervention
Excessive PEEP tx
Re-adjust vent - increase intrathoracic volume (hard to move blood from R to L)
Obstructive Shock blood can’t…
get into or out of the heart
Hypovolemia is from
blood or plasma lost
2 compensatory mechanisms during hypovolemic shock
Can loose 60% of blood and still function due to these
SNS
Aldosterone
SNS
Fight or Flight
Adrenergic
SNS kicks into play..
Various receptors in the body react
3 receptors in the adrenergic system
- Alpha : Heavily in the walls of blood vessels
- Beta 1 : Affect heart
- Beta 2: Affect lungs
Alpha receptors when stimulated by the adrenergic system…
Vasoconstrictor
Glycogeonolysis: Glycogen stored in the liver transformed back into glucose - elevate BS
Diaphoretic
Systolic is..
the measure of the pressure in the artery at the height of contraction - when the blood is pushed and the artery is as full as it can be
Pulse pressure is the
difference between systolic and diastolic
Systolic can tell you
How much volume you have
(sterling law)
How affective are my ventricles
Diastolic tells you..
Peripheral vascular resistance
Diastolic can tell you
Vasoconstriction or Vasodilation (If you have the same amount of blood but narrow your pressure will be higher)
BP on scene 138/72 = 66
BP on scene 118/80 = 38
Post arrival 102/90 = 12
NARROW PULSE PRESSURE
Diastolic - vasoconstriction = going up! (alpha stimulation)
..what should happen to systolic? It should go up…
Systolic - Pt is loosing blood faster than they can vasoconstriction
What is beta 2 meant for in SNS stimulation?
Improve gas exchange
What is another name for parasympathetic
Cholinergic
What kicks in after shock?
Parasympathetic
agonist
increases response
antagonist
decreases response
Alpha adrenergic agonist affect BP?
Increase
Anticholinergic affect pulse rate
Increase
How would a Beta Blocker affect RR
Dec RR
Pericardial Tamponade
accumulation of fluid in the pericardial sac (average 20 - 40 ml of fluid) MAX 100 ml
Pericardial Tamponade SA
CP - like a bruised heart
Blood can’t get in or out of the heart = Hypotension
SNS Stimulation
Inc Lactic Levels
What is electrical alternans
Alternating amplitude of QRS complexes
Different filling pressures
Cardiac Tamponade can cause what rhythm
PEA
How to test the blood from a cardiac tamponade?
Put it in a basin
If it CLOTS - probably from the ventricle
If it does not - probably pericardial blood (platelet poor)
OR CBC - Lower than venous would be sac