What is an excellent predictor of weaning success in mechanically ventilated patients?

Which of the following pathophysiologic conditions can result from acute airway narrowing and increases in airway resistance during respiratory failure caused by airflow obstruction? I. lung regions that cannot be completely emptied II. decreased pulmonary compliance III. respiratory muscle overload IV. impaired cardiac filling

A. I, III only B. I, II, IV only C. I, III, IV only D. II, III, IV only

A recon team is sent to observe a tank truck that has rolled over. The team reports that the vehicle is an MC 312. The container most probably contains a:

a. Flammable liquid b. Corrosive liquid c. Poison gas d. Flammable solid