Cpr breath and chest compression ratio for adults and kids
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CPR compression to breath ratio adults children infants AHA 2025 guidelines
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Here is a complete, up-to-date summary based on the 2025 AHA Guidelines for CPR and ECC:
CPR Compression-to-Breath Ratio
Adults (post-puberty onset)
| Rescuers | Ratio |
|---|---|
| 1 or 2 rescuers | 30 : 2 |
Children (pre-puberty / 1 year to puberty)
| Rescuers | Ratio |
|---|---|
| 1 rescuer | 30 : 2 |
| 2 rescuers | 15 : 2 |
Infants (under 1 year, excluding newborns)
| Rescuers | Ratio |
|---|---|
| 1 rescuer | 30 : 2 |
| 2 rescuers | 15 : 2 |
Key Technique Points (All Ages)
| Parameter | Value |
|---|---|
| Compression rate | 100-120 per minute |
| Adult depth | At least 2 inches (5 cm), no more than 2.4 inches (6 cm) |
| Child depth | At least 1/3 of chest depth (~2 inches / 5 cm) |
| Infant depth | At least 1/3 of chest depth (~1.5 inches / 4 cm) |
| Full chest recoil | Required between compressions |
With an Advanced Airway (all ages)
Once an advanced airway (e.g. endotracheal tube) is in place, stop counting ratios - give continuous compressions at 100-120/min and deliver 1 breath every 2-3 seconds (20-30 breaths/min for children/infants).
2025 Update - Infant Chest Compression Technique
The 2025 AHA/AAP guidelines eliminated the 2-finger technique for infant compressions due to ineffectiveness in reaching proper depth. The recommended methods are now:
- 1 hand technique
- 2 thumb-encircling hands technique (preferred with 2 rescuers)
Quick summary: The key distinction is that two rescuers treating a child or infant use 15:2 instead of 30:2 - this allows more compressions per minute while maintaining adequate ventilation for the younger, more breathing-dependent patient.
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