When using a speaking valve in mechanically ventilated patients, an air leak may require careful and periodical adjustments of the ____, PEEP, and alarm settings.

The best way to improve venous blood flow from the legs is by using

A) active muscle contraction B) a heat application C) passive range-of-motion exercises D) a cold application

Where could serious bleeding take place in the abdomen but not produce distension?

A) True abdomen B) Scaphoid abdomen C) Retroperitoneal abdomen D) Intrathoracic abdomen