Part 2 Flashcards
Adult BLS Algorithm
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Single Rescuer Protocol (3)
Assessment of the Situation
Assessment of the Patient
Definitive Rescue Phase
is a lightweight, portable, computerized
device that can identify an abnormal heart
rhythm that needs a shock.
Automated External Defibrillator (AED)
can then deliver a shock that can
stop the abnormal rhythm and allow the
heart’s normal rhythm to return.
Automated External Defibrillator (AED)
is a process in which an
electronic device (such as AED) gives an
electrical shock to the heart.
Defibrillation
stops Ventricular Fibrillation
(VF) by using an electrical shock and
allows the return of a normal heart rhythm.
Defibrillation
Indications and Importance Defibrillation (6)
Early defibrillation is critical for victims of sudden
cardiac arrest because:
• The most frequent rhythm in sudden
cardiac arrest is Ventricular Fibrillation
(VF).
• The most effective treatment for VF is
defibrillation.
• Also indicated for Pulseless Ventricular
Tachycardia.
• Defibrillation is most likely successful if it
occurs within minutes of collapse (sudden
cardiac arrest).
• Defibrillation may be ineffective if it is
delayed.
• VF deteriorates to asystole if not treated.
Shockable Rhythms (2)
Ventricular Fibrillation
Pulseless Ventricular Tachycardia
Shockable Rhythms
- An arrhythmia that occurs when the
ventricles beat with rapid and erratic
electrical impulses
Ventricular Fibrillation
Shockable Rhythms
- Useless quivering of the heart with no
blood flow.
Ventricular Fibrillation
Shockable Rhythms Ventricular Fibrillation
- _ is depleted of oxygen &
metabolic substrates.
Myocardium
Shockable Rhythms
- Rhythm causing ‘all’ sudden cardiac arrest
Ventricular Fibrillation
Shockable Rhythms
- is the treatment of
choice in Ventricular Fibrillation
Rapid Defibrillation
Shockable Rhythms
- Very rapid but ineffective ventricular
contractions leading to insufficient organ
perfusion and heart failure.
Pulseless Ventricular Tachycardia
Pulseless Ventricular Tachycardia Rate
greater than 180 beats per minute
Pulseless Ventricular Tachycardia Rhythm
very wide QRS complex in ECG
tracings and originates in the ventricles. The patient will be pulseless
Non-Shockable Rhythms (2)
Asystole
Pulseless Electrical Activity
Non-Shockable Rhythms
- Absence of ventricular contractions
Asystole
Non-Shockable Rhythms
- An organized, slow rhythm that does not
produce a pulse
Pulseless Electrical Activity
Special Conditions That Affect the Use of AED (5)
• The victim is one month old or less.
• The victim has a hairy chest.
• The victim is lying in the water, immersed in
water, or water is covering the victim’s
chest.
• The victim has implanted defibrillator or
pacemaker.
• The victim has a transdermal medication
patch or other objects on the skin’s surface
where the AED electrode pads are placed.
Placement of AED Pads (2)
Anterolateral
Anteroposterior
Defib diagram
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Shock First Vs. CPR First
- For _, when
an _, it is
reasonable that the defibrillator be used _
witnessed adult cardiac arrest
AED is immediately available
as
soon as possible.
Shock First Vs. CPR First
- For _
or for whom _, it is reasonable that _ be
initiated while the defibrillator equipment is
being retrieved and applied and that
defibrillation, if indicated, be attempted as
soon as the device is ready for use.
adults with unmonitored cardiac arrest
an AED is not immediately
available
CPR
