<prompt> In high spinal anaesthesia what is seenHypotension BradycardiaHypotension TachycardiaHypeension BradycardiaHypeension Tachycardia  <response>: A i.e. Hypotension Bradycardia Spinal anesthesia ascending into cervical levels causing severe hypotensionQ, bradycardiaQ, respiratory insufficiencyQ unconsciousnessQ is known as high or total spinal anesthesia. It can also occur following attempted epiduralcaudal anethesia, if there is inadveent intrathecal injection of large amount of anesthetic intended for epidural space. 