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06-02-2009, 07:24 AM
It's more common to use a benzo like Versed with a shorter half life for procedures like this, but that could depend on how long they're expecting the MRI to take, which will depend on what they're looking for.Yes, you probably will need someone to get you there and back. Driving on these medications, especially if you haven't developed tolerance to the sedation is not advised. And given how drowsy and sedated it can make you, navigating a public transportation system isn't advisable either. The expense of a taxi may be justified if you don't have someone to take you.The effects of Ativan last for several hours, usually between four and seven. It can vary a little because of kidney function and other factors, but it's very reliable in that window. It takes between 30 minutes and an hour to kick in, depending on what you've got in your stomach. Since I assume they've advised you not to eat anything, or eat anything heavy, it'll probably be in the shorter range of things.It's a very safe medication. Taking it, especially at a strong dose creates a feeling of relaxation, lethargy and sedation. It's rather doubtful that you'll feel intimidated at all by the experience, and it wouldn't be surprising if you actually doze off in the MRI. For some people the experience can be similar to the opiate in Tylenol 4, but that's a rather different drug. The feeling of fun... not really. The stress and anxiety of being in a closed place probably won't bother you at all. One of the other effects is that it blunts the formation of new memory, so your recollection of the experience will be hazy and incomplete, and any stress you do experience will quickly fade.
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