Overview #
“Basic life support (BLS) is the preservation or restoration of life by establishment and maintenance of airway, breathing and circulation and related emergency care”[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
Basic life support algorithm: DRS ABCD
- anzcor-basic-life-support-flowchart.jpg (1190×1683) (austererisk.com)[mfn referencenumber=2]ANZCOR Basic Life Support Flowchart [Internet]. Australia: Australian Resuscitation Council; 2021 April. Available from: https://secureservercdn.net/198.71.190.10/777.066.myftpupload.com/download/flowcharts/anzcor-basic-life-support-flowchart-april-2021.pdf[/mfn]
Key points:
- Basic life support can be commenced by anyone, even without any equipment
- Team leader:
- A senior medical team member will generally be the team leader (eg. Often the Medical registrar, ICU registrar)
- The team leader runs the Code and does not perform tasks but acts as a central person for team members to communicate and relay information to
- Closed loop communication: Confirm to the team leader that the task assigned to you has been done
- “Five for five”: The idea to take time to summarise to the entire team what has happened and what the plan is (Take 5 seconds to plan for the the next five minutes)
- Current status
- What has happened since last “five for five”/summary
- Current differentials/ideas and plan
Refer to local guidelines and the Australian Resuscitation Council’s Guidelines https://resus.org.au/guidelines/
Procedure #
1. Danger
Check for potential dangers to yourself, colleagues, and the patient.
Ensure adequate PPE[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
2. Response
Assess the patient’s responsiveness using AVPU (Alert, Verbal, Pain, Unresponsiveness/Unconscious)
Patients unresponsive to verbal and tactile stimuli should indicate the continuation of basic life support.
3. Send for Help
Universal hospital emergency number: 222 or 2222
- Currently being adopted in ACT, NSW, & VIC
- Check local emergency number for health site
Refer to local guidelines regarding sending for help.
Once you have sent for help, continue basic life support[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
Methods:
- Verbal: Shouting that you need urgent assistance will generally bring staff members in the vicinity
- Most hospital ward rooms will have a medical emergency button which will bring local/ward-based assistance
- A Code Blue (medical emergency) should be called as soon as possible to ensure more specialised medical staff as well as resuscitation equipment and medications arrive promptly
- Note: Closed loop communication/confirming a task is done is essential to ensure that specialised assistance is on the way
4. Airway
Assess airway patency: eg. Oropharyngeal swelling indicating possible anaphylaxis or snoring indicating partial airway obstruction
Finding | Intervention |
Non-patent airway | Airway maneuvers +/- Airway adjuncts |
Foreign body causing obstruction | Remove via suction1 |
Dentures | Loose dentures: Remove1 Fitted dentures: Maintain in situ1Maintains facial structure aiding bag-mask ventilation1 |
Swollen oropharynx | Anaphylaxis pathway |
Airway maneuvers:
- Head tilt and chin lift[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]:
- Extend the patient’s head by placing a hand on the patient’s forehead whilst gently raising the patient’s chin with the other hand
- Contraindication: Cervical or thoracic trauma
- Jaw thrust[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]: Push the jaw forwards by placing two fingers each side of the patient’s jaw with the thumbs opposing on the cheeks/chin
Airway Adjuncts and Devices
- Guedel/Oropharyngeal airway (OPA)
- Nasopharyngeal airway (NPA)
- Laryngeal mask airway (LMA)
- Endotracheal tube (ETT)
5. Breathing
Assess the patient’s breathing:
- Look and feel for chest/abdominal rise and fall
- Listen and feel for breathing at the nose/mouth
- Attach pulse oximetry if available
If the patient is not breathing adequately, continue basic life support and commence cardiopulmonary resuscitation (CPR).
If the patient is breathing adequately, place in the recovery position and continue assessment.
6. Cardiopulmonary Resuscitation (CPR)
Adult cardiopulmonary resuscitation consists of cycling through 30 compressions followed by 2 breaths.
Compressions:
- Position: Lower half of sternum[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- 1/3rd depth of patient’s chest[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- Rate: 100-120bpm[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- To the beat of “Staying Alive” or “Another One Bites the Dust”
- Compressions should only pause for breaths, pulse checks, defibrillation, or for procedures such as endotracheal intubation1
- Rotate responder administering compressions every 2 minutes to avoid fatigue1
Breathing:
- Ventilation:
- Bag-mask ventilation (BMV) +/- airway adjuncts
- Laryngeal mask airway (LMA) ventilation
- Endotracheal tube (ETT) ventilation
- Compressions can continue during ventilation if a definitive airway (eg. ETT) is in place
7. Defibrillator (AED)
- Pad placement:
- Anterior-lateral positions[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- Do not place pads over:
- ECG electrodes or leads[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- Medication patches[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- Implanted devices: eg. Pacemaker[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- Central line[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- Prior to defibrillation
- Ensure that all flammable gases/materials are clear (eg. Oxygen from ventilation)[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- Visually and verbally ensure everyone is clear of the patient[mfn referencenumber=1]Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014[/mfn]
- Defibrillator settings (for manual defibrillators): 200 Joules for Adults
Continuing Basic Life Support (BLS) #
Basic life support should be continued until:
- The patient has a return of spontaneous circulation (ROSC)
- The algorithm has progressed to Advanced Life Support (ALS)
- The responder/s are physically unable to continue performing cardiopulmonary resuscitation
- A doctor (eg. Senior registrar or consultant) along with the team, determine that continuing basic life support is futile
After discontinuing cardiopulmonary resuscitation (CPR): Pronounce patient as deceased
After Return of Spontaneous Circulation (ROSC) #
- Resuscitation continues even after return of spontaneous circulation (ROSC)5
- Continue supporting the patient:
- Respiratory support: Aim SaO2 94-98%5
- Haemodynamic support: Aim SBP >100mmHg or patient’s usual blood pressure5
- Treat and prevent cardiac arrhythmias5
- Determine and treat cause of arrest: 4 Hs and 4 Ts5
- Hypoxia
- Hypokalaemia or Hyperkalaemia (and other electrolyte disorders)
- Hypothermia or Hyperthermia
- Hypovolemia
- Tension pneumothorax
- Tamponade
- Thrombus: Coronary or pulmonary
- Toxins: Medications, poisons, etc.
Documentation #
An allocated scribe (usually nursing staff) scribes the event.
Ensure to order any medications/fluids used during the event as well as to adequately document the event.
Contraindications #
There are no contraindications to basic life support in an unresponsive patient; however, ensure that treatment is in line with the patient’s Goals of Care (GOC) or Advanced Care Plan (ACP). “Not for CPR”.
References #
- Department of Health & Human Services. Standard 9 Basic Life Support learning Module (Recognising and Responding to Clinical Deterioration in Acute Healthcare). Victoria: State of Victoria; 2014
- ANZCOR Basic Life Support Flowchart [Internet]. Australia: Australian Resuscitation Council; 2021 April. Available from: https://secureservercdn.net/198.71.190.10/777.066.myftpupload.com/download/flowcharts/anzcor-basic-life-support-flowchart-april-2021.pdf
- ANZCOR Anaphylaxis Flowchart [Internet]. Australia: Australian Resuscitation Council; 2019 March. Available from: https://secureservercdn.net/198.71.190.10/777.066.myftpupload.com/download/flowcharts/anzcor-anaphylaxis-flowchart-20190316.pdf
- Basic Life Support [Internet]. Australia:Vic First Aid; 2021. Available from: https://vicfirstaid.com/new/lesson/basic-life-support-2/5/
- ANZCOR Guideline 11.7 – Post-resuscitation Therapy in Adult Advanced Life Support. Australia: Australian Resuscitation Council; 2016 Jan
Contributors
Reviewing Consultant/Senior Registrar
Julian Loo Yong Kee
Dr Anita Ng