Medical Term for Noisy Breathing at Rest
The medical term for noisy breathing at rest is "stridor" when referring to upper airway obstruction, or "death rattle" (also called terminal respiratory secretions) when occurring in end-of-life patients.
Context-Dependent Terminology
The appropriate medical terminology depends critically on the clinical context:
Upper Airway Obstruction
- Stridor is the term used for noisy breathing caused by turbulent airflow in the upper respiratory tract, trachea, and central bronchi 1, 2.
- The 2013 international consensus conference established that "breathing problems" is an acceptable umbrella term that includes more specific symptoms like stridor when describing inducible laryngeal obstructions 1.
- Gurgling sounds heard during quiet breathing or speech represent a specific type of noisy breathing that predicts hospital-acquired pneumonia and is independently associated with aspiration risk 3.
End-of-Life Context
- Death rattle is the established clinical term for noisy breathing in patients near death, occurring in 23-92% of dying patients 4.
- This is presumed to result from accumulation of secretions in the airways 4, 5.
- The term "terminal respiratory secretions" is also medically appropriate 5.
Chronic Respiratory Disease
- In chronic bronchitis and asthma, noisy breathing at rest reflects turbulent airflow from reduced bronchial calibre 2.
- The intensity of inspiratory sound inversely correlates with forced expiratory volume and peak expiratory flow rate in these conditions 2.
Important Clinical Distinctions
Avoid assuming the specific type of noise without direct assessment, as there are serious questions regarding both accuracy and reliability of breath sound characterization 6.
The location and quality of the sound provides diagnostic information: