4. Trauma Flashcards
which trauma has incr risk of vascular tearing
deceleration
3 types of trauma
penetrating
blunt
deceleration
primary goal of anesthesia during trauma
airway managment
trauma bay equipment (9)
anesthesia cart
code cart
FULL airway cart
resuscitation equipment
Vascular access
POC labd
echocardiography
warming devices
rapid transfusers
RED triage
immediate attention
cannot survive w/o immediat treatment but have chance of survival
YELLOW triage
observation
serious injuries need immediat attention
better chance of recovery
GREEN triage
non-life threatening injuries
BLACK triage
decease or mortally wounded
WHITE triage
no injury
most trauma pts die of
tissue hypoxia
all trauma pts are considered
full stomach
indications to intubate
- inadequate airway proetction
- loss of conscioussness
- high spinal injury
- aspiration
- loss of airway
- severe maxillofacial deformity
- neck hematoma
- CO poisonig
- hperventilation needed for ICP
- laryngeal/tracheal injury
- stridor
- poor ventilation
- GCS < 8
trauma induction doses
greatly reduced due to incr susceptibility for HD effects
can you oxy pt with ambu bag
yes but you must squeeze the bag for blow by
cervical spine considerations
- jaw thrust only
- in-line stabilization during intubation
- video scope 1st attempt
which pts have unstable c-spine
ALL trauma pts are assumed to have unstable c-spine unless proven by radiography
which induction agents cause hypotension or cardiac arrest in trauma pts
ALL
propofol
etomidate
ketamine
best choice induction agent trauma
ketamine
etomidate SE
inhibits catecholamines
ketamine SE
direct myocardial depression
sux CI
burns
ESRD
recent denervation
incr ICP
(hyperkalemia)
what can sux cause
incr ICP
histamie release
tension pneumothorax diagnosis
sudden CV collapse after PPV
- tachycardia
- hypotension
- incr PIP
- hypercarbia
- hypoxia
what is the indication for tension pneumo decompression?
pt becomes unstable
CI for decompression?
none - be cautious of breathing and anatomical changes
tension pneumo stable consideration
avoid PPV
supp O2
anxiolytic
skin prep options
iodine
betadine
chlorhexidine
MCL
2nd intercostal space
AAL
5th intercostal space
needle size for decompression
14 ga
needle stick location for decompression
superior to inferior ribs
chest tube atrium water seal function
allows for escaping air without entraning new air
water moves up atrium tube
when pt takes breath
what kills most trauma pts
shock
shock symtoms
hypotension
tachycardia
prolong cap refill
diminished UOP
narrow pulse pressure
chest bleeding diagnosis
radiography
thoracostomy tube output
CT
chest bleed treatment
observation
surgery
abdominal bleed diagnosis
physical exam
FAST scan
CT
peritoneal leakage
abdominal bleed treatment
surgical ligation
angiography
observeration
retroperitoneum bleed diagnosis
CT
angiography
retroperitoneum treatment
angiography
long bone bleeding diagnosis
exam
plain radiography
long bone bleed treatment
fracture fixation
surgical ligation
exterior bleed diagnosis
physical exam
exterior bleed treatment
digital pressure
surgical ligation
capillary bleeding
slow
bright red
venous bleeding
slow
dark red
arterial bleeding
spurting
pulasating
bright red
class 1 hemorrhage
< 15% loss of circ volume
no change HR/BP
resuscitation not required
class 2 hemorrhage
15-30% loss of circ volume
HR incr
DBP incr
IV fluid replacement
class 3 hemorrhage
30-40% loss of circ volume
HR incr
BP decr
metabolic acidosis
transfusion necessary
class 4 hemorrhage
> 40% loss of circ volume
profound hypotension
trauma induced coagulopathy
massive transfusion
shock
abnormality of the circ system that causes inadequate organ perfusion and tissue oxygenation
common theme with shock
hypotension
decr CO
most common type of shock
septic
which types of shock have incr SVR
hypovolemia
cardiogenic
which types of shock have decr SVR
anaphylactic
septic
which type of shock has pink, warm, flushed skin
septic
which type of shock has warm dry skin
neurogenic
septic shock treatment
crystalloid
resuscitation
restoration of normal circulating blood volume
normal vascular tone
normal tissue perfusion
macrocirculatory response
vasoconstriction
catecholamine surge
microcirculatory response
cellular edema
== free radical/lactate
== decr BF
macrocirc response agents
renin
angiotensin
vasopressin
ADH
growth hormone
glucagon
cortisol
epi
norepi
microcirc response agents
prostacyclin
thromboxane
prostaglandins
leukotrines
endothelin
interleukins
lactate/free radical cause
negatrive inotropic effects
kidneys/adrenal shock response
produce catecholamines
heart shock reponse
responds to global effects
lung shock response
filters proinflammatory markers
precipitates ARDS
gut shock response
produces inflammatory mediators
bacteria
bowel dysfunction
liver shock response
reperfusion-like manifestation
which organ is most susceptible to hypoperfusion
gut
shock stage 1
mild/stable
skin
tachycardia
shock stage 2
mod/stable
responsive to fluid test
shock stage 3
hypotensive shock is responsive for 20-30 mins
or
hypotensive shock not responsive to 500 mL fluid test
shock stage 4
heart/brain ischemia
total blood volume loss > 40%
shock stage 5
cardiac arrest due to exsangiunation
shock early resuscitation goals: SBP
80-100 mmHg
shock early resuscitation goals: Hct
Hct 25-30%
shock early resuscitation goals: PT/PTT
normal PT/PTT
shock early resuscitation goals: Plts
Plt > 50,000
shock early resuscitation goals: core temp
> 35C
shock early resuscitation goals: pulse ox
functioning
shock early resuscitation goals: lactate
prevent changes in lactate
shock early resuscitation goals: anesthesia/analgesia
ensure adequate anesthesia/analgesia
shock late resuscitation goals: SBP
> 100mmHg
shock late resuscitation goals: Hct
Hct above transfusion goal
shock late resuscitation goals: coag status
normalized
shock late resuscitation goals: electrolyte status
normalized
shock late resuscitation goals: core temp
normalized
shock late resuscitation goals: urine output
normalized
shock late resuscitation goals: CO
maximized CO
shock late resuscitation goals: systemic acidosis
reversed systemic acidosis
shock late resuscitation goals: lactate
normalized lactate level
what is anestheisa responsible for during shock management?
early resuscitation goals
normal lactate
< 2 mmol/L
acidosis lactate
> 5 mmol/L
what can volume expansion with only fluids cause
dilutional anemia
coagulopathy
normal PT
11-13.5 sec
normal PTT
25-35 sec
normal ionized Ca2+
4.6-5.2 mg/dL
total Ca2+ level
8.6-10.3 mg/dL
liver CO
25%
gut CO
10-15%
kidney CO
25%
brain CO
12%
risk of femoral lines
abdominal injury concern
risk of IJ lines
cervical spine
pneumo risk
risk of subvlacian lines
pneumo
rapid transfuser rate
1500mL/min
which blood product cannot be used with rapid transfusers?
Platelets
which blood products can be used with rapid transfusers?
crystalloids
colloids
PRBCs
washed blood
FFP
rapid transfusers advantages
- FAST
- mix products in reservoir
- warm fluids
- pump simultaneous
- fail-safe air detection
- accurate vol/pressure recording
- portable
PRBCs effect
incr Hg 1g/dL
or
incr Hct 3%
FFP effect
2-3% incr in clotting factors
Plts effect
incr 5000-10,000/microL
cryo effect
incr fibrinogen 5-7 mg/dL
PT normal
11.5-14.5 s
PT pathway
extrinsic
standardized PT test
INR
PTT normal
24.5-35.2s
PTT pathway
intrinsic
thrombin time normal
22.1-31.2 s
thrombin time measure
time to clot once exogenous thrombin is added
fibrinogen normal
175-433 mg/dL
fibrinogen measure
pure count
activated clotting time normal
70-180 s
activated clotting time measures
test tube reagent clotting
plt normal
150k-450k
plt measures
pure count
P2Y12 normal
180-376 PRU
P2Y12 measures
plavix inhibition test
FAST scan locations
pericardium
RUQ
LUQ
suprepubic area
right anterior thoracic
left anterior thoracic
pericardium FAST scan probe/location
phased array
inferior to xiphoid process
transverse
what is used as acoustic window for pericardium FAST scan
liver
RUQ FAST scan prob/location
curve-linear
posterior to MAL
between ribs 8-11
RUQ FAST scan visualized
liver tip
right paracolic gutter
morrison’s puch
LUQ FAST scan probe/location
curve-linear
posterior to MAL
between ribs 6-9
LUQ FAST scan visulaizes
left kidney
spleen
left paracolic gutter
suprapubic FAST scan probe/location
curve-linear
cephalad to pubic sympasis
sweep left/ride
angle probe cephalad/caudal
which FAST scan is most dependedn lcoation in intraperitoneal cavity
suprapubic area
anterior thoracic FAST scan probe/location
linear probe
MCL 2nd-4th intercostal
longitudinal orientation
lowest score for GCS
3
AVPU
fully awake
AVPU
responds to verbal stim only
AVPU
responds to pain stim only
AVPU
unresponsive
mild GCS / TBI
13-15
mod GCS / TBI
9-12
severe GCS / TBI
3-8
mild TBI
minimal deterioration
post concussive effects
mod TBI
long term morbidity
sev TBI
significant risk of mortality
which trauma accounts for 50% of all trauma deaths
CNS
mortality rate of meningeal vessel bleed
15-20%
TBI _____ ICP
incr ICP
TBI _____ CPP
decr CPP
TBI hypotension
SBP < 90 mmHg
TBI hypoxemia
PaO2 < 60 mmHg
most common cause of TBI
falls
anesthetic goals for TBI
mx CPP
decr ICP
avoid hypoxemia
avoid hyper/hypocarbia
avoid hyper/hypoglycemia
TBI airway
always ETT
TBI PaO2
> 60 mmHg
when do you need a central line in TBI pts
if you need to give hypertonic saline
TBI SBP
> 90mmHg
what fluids can you give TBI pts
warmed, non -glucose crystalloids
hypertonic saline
mannitol
what fluid should you not give TBI
no albumin
no dextrose
TBI pts have incr risk of
anemia
effect of HCT on CBF
high Hct will decr CBF
Glu range TBI
80-180 mg/dL
what drug is CI in pts with mod/severe TBI
high dose methyprednisolone
cannabis withdrawal meds
benzos
cocaine withdrawal meds
propranolol
heroine withdrawal meds
methadone
MDMA withdrawal meds
antidepressants
meth widrawal meds
antidepressants
echinacea
immunosuppresion
ginki biloba
inhibits plt activating factor
garlic
inhibits plt aggregation
incr fibrinolysis
ginseng
lower blood glu
incr PT/PTT
inhibits plt aggregation
saw palmetto
cox inhibitor
ephedra
indirect sympathomimetic effect
valerian
sedation
kava
sedation
anxiolysis
st john’s wort
inhibits neurotransmitter reuptake
leeding cause of death in trauma pts
sepsis
how to prevent sepsis
start abx asap
hypothermia SE
incr bleeding
incr HD instability
arrhythmias