22. Intrinsic Rhythm
SA Node - 100 beats per minute (70 normal)
AV Node - 40 - 60 beats per minute
Purkinje Fibers - 30 - 40 beats per minute
23. Fight or Flight / Rest
and Digest
Sympathetic and Parasympathetic Nervous
System - on SA Node
Sympathetic
Norepinephrine (beta-1 receptors)
Parasympathetic
Vagus Nerve (ACh)
50. Sympathetic and Parasympathetic Nervous
System - on SA Node
Sympathetic
Norepinephrine (beta-1 receptors)
Parasympathetic
Vagus Nerve (ACh)
51. Atropine
increases firing of the sinoatrial node (SA) and
conduction through the atrioventricular node (AV) of
the heart, opposes the actions of the vagus nerve,
blocks acetylcholine receptor sites
52. Atropine
increases firing of the sinoatrial node (SA) and
conduction through the atrioventricular node (AV) of
the heart, opposes the actions of the vagus nerve,
blocks acetylcholine receptor sites
x
100. 54 yo with hx of multiple medical problems riding in car
with family on Sunday afternoon, going home after lunch.
101. 54 yo with hx of multiple medical problems riding in car
with family on Sunday afternoon, going home after lunch.
911 call - Family reports patient “passed out” in car.
Pulled over to side of the road and family performing
CPR.
102. 54 yo with hx of multiple medical problems riding in car
with family on Sunday afternoon, going home after lunch.
911 call - Family reports patient “passed out” in car.
Pulled over to side of the road and family performing
CPR.
FD is first on scene.... What do you do?
103. 54 yo with hx of multiple medical problems riding in car
with family on Sunday afternoon, going home after lunch.
911 call - Family reports patient “passed out” in car.
Pulled over to side of the road and family performing
CPR.
FD is first on scene.... What do you do?
*AHA - change from ABC to CAB
104. 54 yo with hx of multiple medical problems riding in car
with family on Sunday afternoon, going home after lunch.
911 call - Family reports patient “passed out” in car.
Pulled over to side of the road and family performing
CPR.
FD is first on scene.... What do you do?
*AHA - change from ABC to CAB
*Patients should receive CPR until an AED is available
105. AHA:
CPR should be fast (>100) and deep (>2
inches)
Rotate compressor every 2 minutes
No ventilation for first 18 sec (30
compressions)
If no advanced airway 30:2 ratio
106. FD applies AED; shock advised. One shock given with
ROSC. EMS arrives at this point. What do you do?
107. FD applies AED; shock advised. One shock given with
ROSC. EMS arrives at this point. What do you do?
117. PEA Arrest
CPR for 2 minutes
Epinephrine every 3 minutes
118. PEA Arrest
CPR for 2 minutes
Epinephrine every 3 minutes
Consider advanced airway (passive O2 via mask with
an open airway showed improved survival)
119. PEA Arrest
CPR for 2 minutes
Epinephrine every 3 minutes
Consider advanced airway (passive O2 via mask with
an open airway showed improved survival)
8 - 10 breaths per minute, continuous CPR
158. AHA Post Cardiac Arrest Goals
- control body temperature to
optimize survival & neurological
recovery
- Tx of ACS (Cath Lab Activation)
159. Patient arrives in hospital E.D. Therapeutic hypothermia
started with cold saline in the field. Patient placed on
cooler. EKG showed STEMI. Cath Lab activated and
patient underwent angiography which showed LAD lesion.
Stented in the Cath Lab and went to CCU where
rewarmed about 24 hours later. Extubated and
eventually went to cardiac rehab.