Flashcards
Cardiac arrest
Cards in this deck (19)
- 1Survival rates of out of hospital cardiac arrests by rhythm types- VF/VT, 41%
- Nonshockable, 17%
- Unwitnessed, 14.3%
- Paramedic witnessed, 45%
- Paramedic witnessed with VF/VT, 70% - 2Define cardiopulmonary arrestCessation of cardiac function with the pt displaying no pulse, no regular breathing and unresponsiveness
(Can still have HR <40 and be considered an arrest) - 3Primary causes of cardiac arrest- AMI
- CHF
- Cardiomyopathy
- Pericarditis
- Valvular stenosis - 4Secondary causes of cardiac arrest- Acute asthma
- Tension pneumo
- Drug overdose
- Drowning
- Trauma
- Electrolytes
- Anaphylaxis
- Electrocution - 5Chain of survival in cardiac arrest- Early intervention
- CPR
- Defib
- ACLS
- Post resus care - 6Baby CPR- Thumbs on lower third of sternum
- 3:1
- Indicated when HR less than 60 despite ventilation for 30 sec - 7Paediatric CPR- 15:5
- One hand
- 12 years and under QAS - 8Defibrillation rationale- Produces simultaneous depolarisation of a critical mass of myocardium and may enable resumption of coordinated electrical activity
- Critical mass of >70% of myocardium need to be sent into absolute refractory for defib to be successful - 9Pad placement- Para-sternal, over second intercostal space
- Mid-axillary line over sixth intercostal space
- Anterior-posterior for children - 10Safety considerations for defib- Has excess hair been removed
- Is pad placement correct
- Pt dry
- O2 away
- Everyone clear - 11Joules for defib- 200J for all shock Corepuls
- Lifepak12, 200, 300, 360
- 4J/kg for kids - 12Benefits of using EtCO2- Confirm airway
- Assess adequacy of CPR
- Significant increase in CO2 = early sign of ROCS - 134H/4T- Hypoxia
- Hypovolaemia
- Hypo/hyperkalaemia/electrolytes
- Hypo/hyperthermia
- Tension pneumothorax
- Tamponade
- Thromoembolism
- Toxins - 14Pathophysiology of cardiac arrest in asthma1. Severe bronchospasm and mucous plugging leading to asphyxia
2. Cardiac arrhythmias due to hypoxia
3. Dynamic hyperinflation causing gradual increase of pressure
4. Reduction of venous return and BP
5. Tension pneumo - 15Signs of life extinct- No palpable carotid pulse
- No heat sounds for 30 continuous secs
- No breath sounds for 30 sec
- Fixed and dilated pupils
- No response to centralised stimuli - 16General resuscitation discontinue criteria- CPR administered by paramedic for at least 20 mins then
- Exhibiting signs of life extinct
- PEA or asystole, 30 mins for VT/VF - 17Rapid discontinuation criteria- Can be withdrawn before 20 mins if:
- Pt was observed as unresponsive and pulseless for at least 10 mins prior to paramedic arrival
- No CPR commenced during this period
- Pt exhibiting signs of life extinct
- Asystole - 18Aims of ROSC management- Continue respiratory support
- Maintain cerebral perfusion
- Treat and prevent arrhythmias
- Determine cause of arrest - 19ROSC management- SITREP
- Swap defib pads for lead II
- Posture as per LOC
- BGL
- CCP for sedation, antidysrhythmic drugs, seizure control
- Oxygen therapy as per SpO2 and EtCO2
- ABCs
- Resp status assessment
- Neurological status assessment
- Perfusion status assessment
Information
- Description
- Paramedics (CSB335) Flashcards on Cardiac arrest, created by Amelia Tuffley on 10/11/2018.
- Created by
- Amelia Tuffley
- Views
- 8
- Tags
- Rating