Listen to respiratory sounds and practice identifying normal vesicular sounds, bronchial breath sounds, wheezes, rhonchi, fine crackles, coarse crackles, pleural rubs, and stridor.
This free lung sounds quiz helps nursing students, respiratory therapy learners, EMT students, medical assistants, and early healthcare learners build real auscultation recognition skills.
Each question plays a respiratory sound. Listen first, then choose the best answer. After each response, you will see a short explanation describing what the sound suggests and what clinical pattern to remember.
Use headphones if possible. Many lung sounds are subtle, especially fine crackles and pleural rubs.
Decide whether the sound is normal, continuous, discontinuous, high pitched, low pitched, or rubbing.
Link the sound to common clinical patterns such as asthma, COPD, secretions, CHF, fibrosis, or airway obstruction.
Recognition improves with repeated listening. Replay sounds until the pattern becomes familiar.
Lung sounds are often grouped into normal breath sounds and adventitious sounds. Adventitious sounds are extra or abnormal sounds heard during respiratory auscultation.
| Sound | What It Often Sounds Like | Common Clinical Association |
|---|---|---|
| Normal Vesicular | Soft, low-pitched, breezy airflow | Normal air movement through smaller airways and lung tissue |
| Bronchial | Louder, harsher, higher-pitched airflow | Normal over trachea; abnormal if heard clearly over peripheral lung fields |
| Wheeze | High-pitched musical sound | Narrowed airways, asthma, COPD, bronchospasm |
| Rhonchi | Low-pitched snoring or gurgling sound | Secretions or obstruction in larger airways |
| Fine Crackles | Short, high-pitched popping sounds | Fluid, fibrosis, CHF, pneumonia, alveolar opening |
| Coarse Crackles | Louder, wetter bubbling or popping sounds | Secretions, pulmonary edema, pneumonia, fluid movement |
| Pleural Rub | Dry rubbing or grating sound | Inflamed pleural surfaces rubbing together |
| Stridor | High-pitched harsh upper-airway sound | Upper airway obstruction and possible emergency |
Before naming the sound, ask: Is it continuous or discontinuous? High-pitched or low-pitched? Wet, musical, harsh, or rubbing? That pattern usually leads you toward the answer.
Press play, listen carefully, and choose the best answer. Your score updates as you go.
Play the respiratory sound below.
Wheezes are usually higher-pitched and musical. Rhonchi are lower-pitched and may sound like snoring or secretions in larger airways.
Fine crackles are shorter and more delicate. Coarse crackles are louder, wetter, and more bubbling.
Stridor is usually an upper-airway sound. It is high-pitched, harsh, and clinically more urgent than routine wheezing.
A pleural rub can sound like leather rubbing together. It may be associated with pleural inflammation and pain with breathing.
Respiratory assessment is a foundational healthcare skill. Lung sounds help learners recognize airflow changes, airway narrowing, fluid patterns, secretions, and possible upper-airway compromise.
In real assessment, lung sounds are only one part of the picture. Always connect the sound to respiratory rate, oxygen saturation, work of breathing, patient history, and clinical appearance.
Adventitious lung sounds are abnormal or extra sounds heard during lung auscultation, such as wheezes, crackles, rhonchi, stridor, or pleural friction rubs.
Wheezes are usually high-pitched and musical, often from narrowed airways. Rhonchi are usually lower-pitched and may sound like snoring or secretions.
Crackles may occur when small airways or alveoli pop open or when fluid or secretions are present. Fine and coarse crackles can suggest different patterns, but they must be interpreted with the full patient picture.
Stridor can be serious because it often points to upper-airway obstruction. In real clinical care, stridor should be treated as an urgent finding.
For learning purposes only. MedSkillBuilder is an independent educational resource and does not provide medical advice.