EMSCodeSim Breath Sound Learning Center

Learn what the lungs are telling you

Listen to common breath sounds, compare normal with abnormal findings, learn where and how to auscultate, connect sounds to clinical clues, and then practice in your existing simulator.

Real training audioPicture-based techniqueDirect simulator practice

Start here

Hear it, describe it, locate it, then connect it to the patient

Breath sounds are clues—not diagnoses. A strong assessment combines sound, respiratory rate, effort, chest rise, SpO₂, ETCO₂, skin signs, history, and response to treatment.

Side to sidecompare matching locations
1 full cyclelisten at each point
Skin, not clothesreduce rubbing noise
Reassessafter treatment or change

Choose your path

What do you want to do first?

Choose a learning goal

You will get the best page to start with and a direct link to the simulator.

Four questions

How should you describe a breath sound?

1

Where?

Upper or lower field? Right, left, or both? Anterior, lateral, posterior, or over the neck?

2

When?

Inspiratory, expiratory, or both? Early, middle, or late in the respiratory cycle?

3

What quality?

Continuous or discontinuous? Musical, harsh, popping, coarse, low-pitched, or diminished?

4

What changed?

Did coughing, repositioning, suction, bronchodilator treatment, oxygenation, or ventilation change the sound?

Interactive pages

Build the skill one layer at a time

Each page teaches the concept before asking the learner to identify or apply it.

Audio Sound Library

Listen to normal vesicular, wheezing, coarse crackles, stridor, and simulated diminished sounds. Then try a mystery-sound challenge.

Open sound library
🩺

Auscultation Skills

Use anterior and posterior pictures, learn the side-to-side ladder, and arrange the listening steps.

Open skills page

Clinical Clues

Connect sounds to common causes, warning signs, treatment categories, and patient scenarios.

Open clinical clues

Practice tools

Use your respiratory simulators together

Breath Sound Simulator

Choose different left and right sounds, rotate the patient, and tap anterior, posterior, lateral, and neck points.

Launch simulator

Pulse Oximetry & Capnography

Connect auscultation findings to oxygenation and ventilation data.

Open pulse ox
Remember: A loud wheeze is not always worse than a quiet chest. In severe bronchospasm, airflow can become so limited that wheezing fades—the “silent chest” is an emergency warning sign.