What does SPECT stand for? SPECT stands for Single Photon Emission Cardiac Tomography (nuclear cardiology) Suggest new definition This definition appears very rarely and is found in the following Acronym Finder categories:
Expert: Dr. Arun Phophalia replied 5 years ago. Greetings. In a study the average lethal dose for Xanax has been found as 22 mg. But death can occur at 10 mg single dose. With alcohol, there is further central nervous system depression and the lethal dose can be far less. Though for it (combination and alcohol)data are not available.
A single 0.5 mg dose of Xanax stays in your system for 3 to 5 days. But the longer period of taking Xanax, and the higher the dosages, the longer it will take your system to g â¦ et rid of traces of Xanax. You may sometimes need a month or more to get yourself quite clear of the medication.