Chest compressions in CPR: rate and depth
30 kg Labrador in arrest after a prolonged seizure. It is in lateral recumbency and you are about to start chest compressions.
Which compression technique is correct?
chevron_right Show answer and explanation
A. 100–120 compressions per minute, compressing one third to one half of chest width and allowing full recoil
Correct. This is the RECOVER recommendation for dogs and cats. Full recoil allows the heart to fill between compressions; leaning on the chest reduces venous return.
B. 60–80 compressions per minute, deeper, to allow time for cardiac filling
A low rate generates insufficient blood flow. Filling is achieved by full chest recoil, not by slowing compressions.
C. More than 150 shallow compressions per minute, to mimic normal heart rate
Compressions that are too fast and shallow prevent filling and generate little pressure. The recommended rate is the same for patients of any size.
D. 100–120 per minute, compressing only 10% of chest width to avoid rib fractures
The rate is correct, but the depth is insufficient to generate flow. Rib fractures are an acceptable complication compared with the risk of ineffective CPR.
lightbulb Key takeaway
Push hard, fast and without pauses: 100–120/min, one third to one half of chest width and full recoil. The compressor tires quickly, so they should be changed every 2-minute cycle.
References: RECOVER clinical guidelines for veterinary CPR (2012)
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Updated: October 31, 2026 · Educational content for veterinary professionals. It does not replace current clinical guidelines or the judgement of the attending veterinarian.