| • Allow effective ventilation | • Relieve distress |
| • Reduce oxygen demand | • Facilitate sleep |
| • Provide analgesia | • Provide amnesia |
| • Reduce anxiety | • Reduce depression |
| • Allow effective ventilation | • Relieve distress |
| • Reduce oxygen demand | • Facilitate sleep |
| • Provide analgesia | • Provide amnesia |
| • Reduce anxiety | • Reduce depression |