Spontaneous breathing trial
Spontaneous Breathing Trial
Spontaneous Breathing Trial (pronunciation: spon-ta-ne-ous bree-thing try-al) is a medical procedure used to assess a patient's readiness to be weaned off mechanical ventilation.
Etymology
The term is derived from the English words "spontaneous," meaning occurring without apparent external cause, "breathing," which refers to the process of taking air into and expelling it from the lungs, and "trial," meaning a test of the performance, qualities, or suitability of someone or something.
Procedure
A Spontaneous Breathing Trial (SBT) is typically performed by reducing or removing the support provided by the mechanical ventilator, and observing the patient's ability to breathe independently. The trial usually lasts for a short period, typically between 30 minutes to 2 hours.
Indications
SBTs are primarily used in ICU settings to determine whether patients who have been on mechanical ventilation can breathe on their own. The trial is usually initiated when the underlying cause of respiratory failure has been resolved or significantly improved.
Related Terms
- Mechanical Ventilation: A method to mechanically assist or replace spontaneous breathing.
- Weaning: The process of gradually reducing the degree of mechanical ventilation to allow a patient to resume spontaneous breathing.
- Respiratory Failure: A condition in which the respiratory system fails in one or both of its gas exchange functions.
See Also
- Ventilator-associated pneumonia
- Acute Respiratory Distress Syndrome
- Chronic Obstructive Pulmonary Disease
External links
- Medical encyclopedia article on Spontaneous breathing trial
- Wikipedia's article - Spontaneous breathing trial
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