<prompt> Use of dexemditomidine ?Prolong action of LA in hypeensive patientsSedative agent for intubated patientsIncreases bioavailability of regional anaesthetic drugHelps in reducing bispectral index of general anaesthetic drug with low potency  <response>: 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 