Use of dexemditomidine ?

Ans. is 'b' i.e., Sedative agent for intubated patients Dexmeditomidine It is a centrally acting a-2 adrenergic agonist It is approved by F.D.A. for sho term (<24 hours) continuous IV sedation of adults who are tracheally intubated. Its use as an anaesthetic agent is not recommended but it is useful in patients with brain injury and ongoing sedation needs