Veterinary CPR apnoea & asystole timeline

CPR scenario 1 (Bella the Boxer)

Bella is a 10y FN boxer who has come into the surgery for a dental procedure. She became apnoeic and asystolic whilst under general anaesthetic.

Start Basic Life support (BLS / CPR)

Continue BLS cycles for 10 minutes

Evaluate patient and check ECG

Give CPR drugs

Give CPR drugs

Reverse drugs and stop anaesthetic gas.

High dose epinepherine at 10 minutes. Consider atropine,

Low dose epinepherine or vasopressin every other BLS cycle (q3-5 minutes). Consider atropine.

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CPR emergency drugs and doses

ARREST drugs:

• Epinephrine/ Adrenaline (Low) - First drug of choice for cardiopulmonary arrest (CPA) Recommended for routine use every OTHER BLS cycle.

• Epinephrine/ Adrenaline (High) - May be considered after prolonged CPR.

• Vasopressin - Substitute or in combination with epinepherine.

• Atropine - Atropine can be used in patients with CPA related to in- creased vagal tone and associated asystole or pulseless electrical activity

Start emergency CPR

CPR (1 cycle = 2 minutes)

1. Cardiac compressions - 100-120 beats per minute
2. Ventilation - 6-10 breaths per minute
3. Initiate monitoring: ECG and ETCO2

Check the ECG

ECG use during CPR is recommended for rhythm evaluation:

• Only evaluate during intercycle pauses
• Do not delay resumption of chest compressions.

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Reverse anaesthetic drugs and turn off the anaesthetic gas

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