BLS

Comprehensive study of bls covering fundamental concepts and advanced applications.

Basic Concepts

Airway, Breathing, and Circulation (ABC)

The ABCs of BLS

Airway, Breathing, and Circulation—often called the "ABC" approach—are the first steps in assessing and managing a person in distress.

Airway

Ensure the airway is open and clear of obstructions. Tilt the head back and lift the chin to open the airway.

Breathing

Check if the person is breathing by looking for chest movement, listening for breath sounds, and feeling for airflow.

Circulation

Check for a pulse or signs of life. If there is none, begin chest compressions immediately.

ABC in Action

  • Step 1: Check for responsiveness.
  • Step 2: Call for help (or tell someone to call emergency services).
  • Step 3: Open the airway, check for breathing, and support circulation with CPR if necessary.

Why is ABC important?

The ABCs guide rescuers through the most life-threatening issues first, ensuring the most urgent problems are addressed right away.

Examples

  • A person is unconscious and not breathing—you open their airway and start CPR.

  • You check a friend's pulse after a fall and begin chest compressions when you don't feel one.

In a Nutshell

The ABC method helps you remember the most important steps: Airway, Breathing, Circulation.

Key Terms

ABC
Acronym for Airway, Breathing, Circulation—the basic steps in life support.
Airway, Breathing, and Circulation (ABC) - BLS Content | Practice Hub