Written by Ketan Patel
Spoon Feed
Basic Life Support (BLS) 2025 guidelines continue to emphasize the core principles of rapid recognition, 100-120/min compression, and early defibrillation. In addition, however, there are several important new AHA recommendations.
Same beat, smarter moves
BLS is the foundational first step in the chain of survival, and proper adoption and implementation, both in and out of the hospital, play a vital role in intact neurological survival after cardiac arrest.
The 2025 AHA guidelines synthesize evidence and update guidelines based on ILCOR systematic reviews. Recent literature continues to support early intervention, with emphasis on early CPR and EMS activation, effective CPR (rate, quality and consistency), and early AED application, all supported by level 1 recommendations.
Updates and highlights since the 2020 Guidelines:
- Unified Chain of Survival across settings: Disparities still exist across socioeconomic factors both in and out of the hospital, and outreach is paramount.
- Choking (foreign body airway obstruction, FBAO): Algorithm now focuses on cycles of 5 back blows then 5 abdominal thrusts.
- Naloxone: Firmly embedded within BLS protocol and should be considered when appropriate.
- Ventilations: Trained lay rescuers advised to provide ventilations plus compressions (30:2) when feasible.
- Positions: Positioning refinements (firm surface, step-stool, consider prone CPR if supine delay).
Several recommendations (adult 5-and-5 FBAO sequence, prone CPR) are supported by limited or low-certainty evidence and expert consensus, with uncertain generalizability across systems and potential training and implementation variability.
How will this change my practice?
What happens before a cardiac arrest patient arrives in my ED is perhaps the biggest factor in survival, regardless of what I do in my resuscitation bay. While not drastically different, these BLS updates may be the most important of all the guidelines within the new AHA 2025 statement.
Source
Part 7: Adult Basic Life Support: 2025 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation. 2025 Oct 21;152(16_suppl_2):S448-S478. doi: 10.1161/CIR.0000000000001369. Epub 2025 Oct 22. PMID: 41122888.
