What are the 4 components of perfusion - ANSWER1. intact vascular system
2. adequate air exchange
3. adequate fluid volume
4. functioning pump
what is the definition of shock - ANSWERinadequate tissue perfusion
What are the 4 basic rules of shock management - ANSWERmanage the airway
manage oxygenation and ventilation
control bleeding whenever possible
maintain circulation through adequate HR and intravascular volume
Name that Shock:
shock caused by spinal injury in which spinal connections to the adrenal glands and to the blood
vessels are interrupted and the vasoconstrictors, epinephrine and norepinephrine are not produced.
With our vasoconstrictors the blood vessels dilate and redistribute blood flow to a larger vascular
volume causing a relative hypovolemia and the heart muscle cannot be stimulated to beat harder or
faster. - ANSWERneurogenic shock
BP = _____ x _____ - ANSWERCO x SVR (Cardiac Output / Systemic Vascular Resistance)
CO = _____ x ______ - ANSWERCO = HR x SV
what is the circular progression of shock - ANSWERInadequate perfusion -> anaerobic processes ->
hypoxia worsens -> catecholamine increase -> cell death -> RBCs decrease -> inadequate perfusion ->
etc
Name that shock
, - Weakness and lightheadedness
- Pallor
- Tachycardia
- Diaphoresis
- Tachypnea
- Urinary output decreased
- Peripheral pulses weakened
- Thirst - ANSWERcompensated
narrowing of pulse pressure is a sign of ___________ shock - ANSWERcompensated or early
name that shock
hypotension
ALOC
cardiac arrest - ANSWERdecompensated
A patient who has lost 15-25% blood
volume will be in what type of shock - ANSWERearly shock
How much blood volume does the patient have to lose to enter "late shock" - ANSWER30-45%
When peripheral pulses cannot be found a good way to check the circulation status of the patient is
by using - ANSWERcap refill
How long is normal capillary refill - ANSWER<2 seconds
_________ is the first sign of late shock - ANSWERhypotension
Low - volume shock is also called - ANSWERAbsolute hypovolemia