Best indicator of Endotracheal tube Extubation is: (A) Tin box index, (B) Minute volume, (C) Respiratory rate, (D) Negative inspiratory pressure
Answer is D. (D) Negative inspiratory pressure # Mechanical function indicators of Extubation:1. FEV>10-15 ml/Kg2. Tidal volume >/= 4-6 ml/Kg3. FVC IN 1 SEC >10 ml/KG4. Negative inspiratory force >20 cm H205. Vital capacity >/=15 ml/KG6. Dead space ventilation or tidal volume ratio <0.67. Rapid shallow breating index