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Basic Life Support for Adults
Prof. Dr. Ram Sharan Mehta, MSND, CON1 Prof. Dr. RS Mehta, BPKIHS
BLS & ALS
HOW MANY TIMES DOES THE HUMAN HEART BEAT IN A DAY ?
1,00,800 beats per day
(70 beats x 60 minutes x 24 hours = 1,00,800 beats)
2 Prof. Dr. RS Mehta, BPKIHS
BRAIN TISSUE = ?HEART TISSUE =?KIDNEY TISSUE=?
CPR=CPCR CARDIO PULMONARY CEREBRAL RESUSCITATION
Death of Tissue after cutoff oxygen
3 Prof. Dr. RS Mehta, BPKIHS
BLS ALS: steps
ABCD
DEFGHI
4 Prof. Dr. RS Mehta, BPKIHS
DEFINITIONS
CARDIAC ARREST: Abrupt cessation of cardiac pump function which may be reversible by a rapid intervention but will lead to death in its absence.
DEATH: Irreversible cessation of all biologic functions
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CARDIAC: Coronary artery disease M.I. Arrhythmia Low C.O.,failure,shock Cardiomyopathy Myocarditis Massive pulmonary
emboli
OTHERS Severe anaphylaxis Suffocation Electrocution Trauma Stroke Exsanguinations Drowning
CAUSES OF CARDIAC ARREST
6 Prof. Dr. RS Mehta, BPKIHS
REVERSIBLE CAUSES OF CARDIAC ARREST:
4 Ts: Thromboembolism Tension
pneumothoraxTamponadeToxicity(TCAs,b-
blockers,ca channel blocker,dogoxin)
4Hs:Hypoxia HypovolemiaHypo/hyperkalemiaHydrogen ions
7 Prof. Dr. RS Mehta, BPKIHS
Introduction:
Lack of resuscitation skills of nurses and doctors in basic life support (BLS) and advanced life support (ALS) has been identified as a contributing factor to poor outcomes of cardiac arrest victims.
The hypothesis was that nurses’ knowledge on BLS and ALS would be related to their professional background as well as their resuscitation training.
8 Prof. Dr. RS Mehta, BPKIHS
Introduction...
Approximately 700,000 cardiac arrests per year in Europe
Survival to hospital discharge presently approximately 5-10%
Bystander CPR vital intervention before arrival of emergency services – double or triple survival from sudden cardiac arrest (SCA).
Early resuscitation and prompt defibrillation (within 1-2 minutes) can result in >60% survival
9 Prof. Dr. RS Mehta, BPKIHS
CHAIN OF SURVIVAL
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BASIC LIFE SUPPORT
Sequences of procedures performed to restore the circulation of oxygenated blood after a sudden pulmonary and/or cardiac arrest
Chest compressions and pulmonary ventilation performed by anyone who knows how to do it, anywhere, immediately, without any other equipment
Protective devices
11 Prof. Dr. RS Mehta, BPKIHS
BLS Its Cardiopulmonary Resuscitation (CPR).Combines rescue breathing and chest
compressionsRevives heart (cardio) and lung
(pulmonary) functioning– Use when there is no breathing and no pulse
Provides O2 to the brain until ACLS arrives
12Prof. Dr. RS Mehta, BPKIHS
How CPR WorksEffective CPR provides 1/4 to
1/3 normal blood flowRescue breaths contain 16%
oxygen (exhaled).
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Start CPR Immediately
Better chance of survivalBrain damage starts in 4-6
minutesBrain damage is certain after
10 minutes without CPR
14Prof. Dr. RS Mehta, BPKIHS
Do Not Move the Victim Until CPR is Given and Qualified Help Arrives…
unless the scene dictates otherwise– threat of fire or explosion– victim must be on a hard surface– Place victim level or head slightly
lower than body15 Prof. Dr. RS Mehta, BPKIHS
Even With Successful CPR, Most Won’t Survive Without ACLS
ACLS (Advanced Cardiac Life Support)
ACLS includes defibrillation, oxygen, drug therapy
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BLS = CPR = ABC?
Prof. Dr. RS Mehta, BPKIHS
DRS CAB D
Basic Life Support (BLS)ABCs - Airway, Breathing, Circulation
Steps to follow in BLS– Approach Safely– 1. Check the responsiveness of the victim– 2. Call for Help– 3. Position victim on his or her back– 4. Open the airway– 5. Assess breathing– 6. Assess circulation– 7. Stay with the victim until help arrives.
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Details of the Steps:
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APPROACH SAFELY!
Scene
Rescuer
Victim
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CHECK RESPONSE
– Shake shoulders gently– Ask “Are you all right?”– If he responds• Leave as you find him.• Find out what is wrong.• Reassess regularly.
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SHOUT FOR HELP
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Open the airway with the head tilt-chin lift method to check for
breathing.
Check for Breathing
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OPEN AIRWAY
Head tilt and chin lift- lay rescuers- non-healthcare
rescuers
No need for finger sweep unless solid material can be
seen in the airway
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Look, listen and feel for breathing for not over 10 seconds.
Check for Breathing
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OPEN AIRWAY
Head tilt, chin lift + jaw thrust- healthcare professionals
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Head Tilt–Chin Lift ManeuverStep 1 Step 2
Step 3 Step 4
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Jaw-Thrust ManeuverStep 1 Step 2
Step 3
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Use a barrier device of some type while giving breaths.
Giving Breaths
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Give 2 breaths, each for about 1 second, watching the chest rise
and fall.
Giving Breaths
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RESCUE BREATHS
Pinch the nose Take a normal breath Place lips over mouth Blow until the chest rises Take about 1 second Allow chest to fall Repeat
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RESCUE BREATHS
RECOMMENDATIONS:- Tidal volume 500 – 600 ml
- Respiratory rate give each breaths over about 1s with enough volume to make the victim’s chest rise
- Chest-compression-only continuously at a rate of 100 min
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Pocket mask vs bag-valve mask
•Easy to use and easily available
•One way valve•Can give O2 up to
50%
Pocket mask
•Takes more skill and requires 2 people in most cases
•Can give O2 up to 85%
Bag-valve Mask
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Give 30 chest compressions, hard and fast, positioning hand midway between breasts.
Giving Chest Compressions
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Use cycles of 2 breaths and 30 compressions.
Cycles of Breaths/Compressions
2 breaths + 30 compressions
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• Place the heel of one hand in the centre of the chest
• Place other hand on top • Interlock fingers• Compress the chest
– Rate 100 min-1
– Depth 4-5 cm– Equal compression : relaxation
• When possible change CPR operator every 2 min
CHEST COMPRESSIONS
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CONTINUE CPR
30 2
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DEFIBRILLATION
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Date
East of England Ambulance ServiceNHS Trust
BLS & AED
12/02/201540
Understanding Defibrillation The heart’s pumping
action controlled by electrical system
Electrical rhythm normally very organized
Normal heart’s rhythm is called “Sinus Rhythm”
Normal heart rate of 60 - 100 beats per minute
Sinus Rhythm
Date
East of England Ambulance ServiceNHS Trust
BLS & AED
12/02/201541
Understanding Defibrillation:Ventricular Fibrillation (VF)
VF is the most common rhythm in Sudden Cardiac Arrest (90%)
Electrical Problem in Nature
Chaotic rhythm results in “quivering of heart” and results in loss of pulse
VF will result in brain damage within 5 minutes and death in 10-15 minutes
Date
East of England Ambulance ServiceNHS Trust
BLS & AED
12/02/201542
Understanding Defibrillation Defibrillation may correct VF Uses DC current delivered
across the heart A successful defibrillation
“depolarizes” the heart’s cells
Depolarization allows the cells to “reorganize”
Defibrillation is the ONLY effective cure for VF!
DC Shock: Joules
AED OR Defibrillation Machine
150-360 Joules: Monophasic 150-270 Joules: Biphasic
43 Prof. Dr. RS Mehta, BPKIHS
Use the AED as soon as it is available and ready to use.
Use of an AED
Automated External Defibrillator44 Prof. Dr. RS Mehta, BPKIHS
Follow the AED prompts to give a shock, then give CPR again
while the AED is analyzing the victim’s rhythm.
Using AED and CPR
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First turn it on.Then simply follow instructions.
Using an AED
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AUTOMATED EXTERNAL DEFIBRILLATOR (AED)
Some AEDs will automatically switch themselves on when the lid is opened
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ATTACH PADS TO CASUALTY’S BARE CHEST
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ANALYSING RHYTHM DO NOT TOUCH VICTIM
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SHOCK INDICATED
Stand clear Deliver shock
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SHOCK DELIVEREDFOLLOW AED INSTRUCTIONS
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NO SHOCK ADVISEDFOLLOW AED INSTRUCTIONS
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IF VICTIM STARTS TO BREATHE NORMALLY PLACE IN RECOVERY POSITION
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DEFIBRILLATION SAFETY !
THE PATIENT. 5 point check Pacemaker Jewellery Hair on chest Damp/Wet skin Patches (GTN)
THE AED. In good working order Do Not use in Heavy
rain Do Not use if they lay in
a pool of water Do Not use in an
explosive environment !
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If the victim responds, position him in the recovery position and monitor breathing until help
arrives.
The Recovery Position
Infant Recovery Position56 Prof. Dr. RS Mehta, BPKIHS
Complications of CPR Skeletal injuries especially rib# Visceral injuries- myocardial and pulmonary
contusions, blood in pericardial sac, pneumothorax, liver and spleen rupture, gastric perforation
Airway injuries- tracheal & laryngeal injuries Skin and integument damage
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Immediately after CPR…
Laryngoscopy; 100% oxygenUrinary catheterNG tubeestablish or verify existing intravenous
access; start with NSTransfer to a special care unit for
continuous monitoring and therapy.58 Prof. Dr. RS Mehta, BPKIHS
After CPR…Complete exam including– serial vitals– urine output– 12-lead ECG– Chest x-ray
– Blood glucose– Serum urea,
creatinine– serum electrolytes
(+Mg++ and Ca++)– Cardiac markers
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Atropine, Adrenaline, CaCl2, Digoxin
Atropine: 5 amp (3 mg) single bolus dose to increase heart rate
Adrenaline: 1 ml=1mg, 1amp=1:1000 dilution, 1gm=1000mg, 1000mg=1000ml 1mg every 2-3 min till B P is maintained
Cacl 2= 5-10 mmol Digoxin = 0.5 mg stat then 0.25 mg 6hrly
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Factors contributing to cardiac arrest or complicating resuscitation or post-resuscitation care
H’s Hypovolemia Hypoxia H+ (acidosis) hyper-/hypokalemia Hypoglycemia hypothermia
T’s
Toxins tamponade (cardiac) tension pneumothorax thrombosis of coronary or
pulmonary vasculature trauma
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Prognosis
5 clinical signs strongly predicting death or poor neurological outcome:
No corneal reflex at 24 hoursNo pupillary response at 24 hoursNo withdrawal response to pain at 24hoursNo motor response at 24 hoursNo motor response at 72 hours
62 Prof. Dr. RS Mehta, BPKIHS
Stroke (first 2 hours are critical)Asthma (check for inhalers)Fainting (look for injuries from fall)Seizures (check for medication)Diabetic emergencies ChockingPoisoning
First Aid Management for Common Problems:
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CONTINUE RESUSCITATION UNTIL
– Qualified help arrives and takes over– Victim revives: The victim starts
breathing normally– Rescuer becomes exhausted– Cardiac arrest of longer than 30 minutes
(controversial)
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Summary
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Simplified adult BLS algorithm.
Robert A. Berg et al. Circulation. 2010;122:S685-S705Copyright © American Heart Association, Inc. All rights reserved.66 Prof. Dr. RS Mehta, BPKIHS
BLS healthcare provider algorithm.
Robert A. Berg et al. Circulation. 2010;122:S685-S705Copyright © American Heart Association, Inc. All rights reserved.67 Prof. Dr. RS Mehta, BPKIHS
Algorithm of ALS 2015
69Prof. Dr. RS Mehta, BPKIHS
• “Look, listen, and feel for breathing” has been removed from the algorithm.
• Continued emphasis has been placed on high-quality CPR (with chest compressions of adequate rate and depth, allowing complete chest recoil after each compression minimizing interruptions in compressions, and avoiding excessive ventilation).
Key Issues and Major Changes
70 Prof. Dr. RS Mehta, BPKIHS
To initiate chest compressions before giving rescue breaths (C-A-B rather than A-B-C).
Compression rate should be at least 100/min (rather than “approximately” 100/min).
Compression depth for adults has been changed from the range of 1½ to 2 inches to at least 2 inches (5 cm).
71 Prof. Dr. RS Mehta, BPKIHS
BLS only provides 15 to 20% of normal cardiac output and should be regarded as “buying time” until the commencement of ALS.
If there is more than one rescuer present , another should take over the CPR every 1 to 2 minute to prevent fatigue.
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ALSProf. Dr. RS Mehta, BPKIHS73
ALS ALGORITHM
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Circulation by cardiac compression Airway management by equipments Breathing by advanced techniques Defibrillation by manual defibrillator Drugs.
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ALS includes:
Prof. Dr. RS Mehta, BPKIHS
Chest compression:- rate- 100/min- Place- mid of sternum- Depth- at least 5 cm (2inches)- or 1/3rd of AP diameter of chest- No synchrony with respiration
Circulation
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• The precordial thump should not be used for unwitnessed out-of-hospital cardiac arrest.
• The precordial thump may be considered for patients with witnessed, monitored, unstable VT (including pulseless VT) if a defibrillator is not immediately ready for use, but it should not delay CPR and shock delivery.
Precordial Thump
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1) Guedel’s airways- Most commonly used
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A. Airway management
Prof. Dr. RS Mehta, BPKIHS
2) Laryngeal Mask Airways
Airway management
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3) Endotracheal tubeAirway management
80 Prof. Dr. RS Mehta, BPKIHS
Breathing can be accomplished by 1.Bag and mask ventilation2.Ventilation by advanced method:
a.ET tube: Intubation is most definitive and best method for ventilation.
b.LMA c.Tracheostomy tube
3. Ventilation by automatic ventilators.
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B. Breathing:
Prof. Dr. RS Mehta, BPKIHS
Bag and Mask Ventillation
82 Prof. Dr. RS Mehta, BPKIHS
It consists of self inflating bag made up of rubber or silicon, connector, safety valve, mouth piece.100% oxygen can be delivered by AMBU bag by attaching oxygen source and oxygen reservoir.
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Artificial Manual Breathing Unit(AMBU)
Prof. Dr. RS Mehta, BPKIHS
These are the treatment for tachydysrhythmias.
Defibrillation depolarize the critical mass of myocardial cell at once. When they repolarize the sinus node recapture its role as the pacemaker .
Is treatment of choice for pulseless VT/VF.
Defibrillation
Prof. Dr. RS Mehta, BPKIHS
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Ventricular tachycardia
Prof. Dr. RS Mehta, BPKIHS
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Ventricular fibrillation
Prof. Dr. RS Mehta, BPKIHS
Defibrillators can be classified as : Monophasic(delivers current
of one polarity only and
Biphasic (deliver current of 2 polarity)
Defibrillator
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Position of defibrillator paddle:
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1st paddle - on the right side of the chest just below the clavicle
2nd at precordial, region.
Paddle should be applied with pressure equivalent to 10 kg.
Prof. Dr. RS Mehta, BPKIHS
Adult: 13cm Children:8cm Infants:4.5cmLatest Recommendation for shock protocol ;Previous recommendation of 3 successive shock
(200,300,360J)Now a days only single shock is recommended .i.e. 360J by monophasic
150-200J by biphasic 89
Paddle size
Prof. Dr. RS Mehta, BPKIHS
Apply conducting jelly between the paddle and the skin. Place the paddle so that they don't touch patient’s
clothing and bed linen and aren't near medication and direct oxygen flow.
Ensure that defibrillator is not in synchronized mode. Don't charge the device until ready to shock; then keep
the thumbs and fingers off discharge button until paddle are on the chest.
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Nurses role while performing defibrillation
Prof. Dr. RS Mehta, BPKIHS
Before pressing the discharge button call “ all clear” 3 times
1st clear: Ensures you aren’t touching patient,bed, equipment
2nd clear: Ensures no one is touching patient, bed , equipment
3rd clear: Ensures you and everyone else are clear off the patient and anything touching the patient.
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Nurses role in defibrillation
Prof. Dr. RS Mehta, BPKIHS
Record the delivered energy and the results (cardiac rhythm and pulse).
After the event is complete inspect the skin under the pads and paddles for burns , and if any detected consult about the treatment.
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Nurses role in defibrillation
Prof. Dr. RS Mehta, BPKIHS
1. Adrenaline(all types of cardiac arrest)- 1mg every 3-5 mins
2. Amidarone(VF,VT)- 1st dose:300mg IV bolus, 2nd dose 150 mg
3. Lidocaine(If Amidarone isn’t available)4. Sodium bicarbonate(only if cardiac arrest is
associated with hyperkalemia or tricyclic anti-depressent overdose)
5. Calcium gluconate
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DRUGS
Prof. Dr. RS Mehta, BPKIHS
Class : Adrenergic MOA : Causes Cardiac stimulation Indication : cardiac arrest Dose : Adults – 0.5-1 mg IV - repeat every 5min - Children – 10 mcg/kg Adverse reaction : nervousness , tremor, headache,
drowsiness , palpitation , tachycardia , dyspnea .
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Adrenaline (Epinephrine):
Prof. Dr. RS Mehta, BPKIHS
Class : Ventricular antiarrhythmic MOA : abolishes ventricular arrhythmia Indication : recurrent VF , unstable VT , atrial
fibrillation Dose : 300mg IV ; further 150mg may be
given , followed by an infusion of 900mg for 24 hour.
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Amiodarone:
Prof. Dr. RS Mehta, BPKIHS
FLOWCHART OF ACLS
96 Prof. Dr. RS Mehta, BPKIHS
Unresponsive
Call for help(monitor/defribillator)
Start BLS algorithm
Attach monitor & defibrillator when available
Check rhythm97 Prof. Dr. RS Mehta, BPKIHS
Shockable
VT
VF
Non-shockable
Asystole
PEA
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Rythm
Prof. Dr. RS Mehta, BPKIHS
VF and VT
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100
Asystole and PEA
Prof. Dr. RS Mehta, BPKIHS
SHOCKABLE(pulseless VF/VT)
1stShock (150-200 biphasic, 360 monophasic)
CPR 30:2(2min)
If VF,VT persists
2nd Shock( 150-360 biphasic, 360 monophasic)
CPR30:2(2 min)
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Prof. Dr. RS Mehta, BPKIHS
Check monitor(if VT,VF persists)
Adrenaline 1mg IV every 3-5min
3rd Shoc
kCPR 30:2(2 min)
Check monitor(if VT,VF persists)
Amidarone(300 mgIV)
4th Shock
CPR 30:2 (2 min)
Adrenaline 1mg IV102
Prof. Dr. RS Mehta, BPKIHS
5th shock
Further shock after each 2 min period of CPR
If organised electrical activity seen,check for
pulse
If pulse present:start post resuscitation care
If no pulse and asystole seen :continue CPR and switch on to non shockable rhythm10
3Prof. Dr. RS Mehta, BPKIHS
Start CPR 30:2 Give adrenaline 1mg as soon as intravascular
access is achieved. Continue CPR 30:2 until the airway is secured,
then continue chest compressions without pausing during ventilation
Consider possible reversible causes and correct any that are identified
Management of Asystole and PEA
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Prof. Dr. RS Mehta, BPKIHS
Recheck the patient after 2 min: If there is still no pulse and no achange in the ECG
appearance:- Continue CPR.- Recheck the patient after 2 min and proceed
accordingly.- Give further adrenaline 1 mg every 3-5 min (alternate
loops).- If VF/VT, change to the shockable rhythm algorithm.- If a pulse is present, start post-resuscitation care.
Management of Asystole and PEA
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Prof. Dr. RS Mehta, BPKIHS
WHEN TO STOP RESUSCITATION
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Prof. Dr. RS Mehta, BPKIHS
Optimizing vital organ perfusion Maintain o2 saturation more than or equal to 94% Transport to comprehensive post arrest system of care Emergent coronary reperfusion for high suspicion of
STEMI or AMI Temperature control Aniticipation, treatment and prevention of multi organ
dysfunction
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POST RESUSCITATION CARE
Prof. Dr. RS Mehta, BPKIHS
Thank you
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The woods are lovely dark and deep but, I have promises to keep and miles to go before I sleep and miles to go before I sleep
-Robert FrostProf. Dr. RS Mehta, BPKIHS