In their gold rush to sign you up for quick-money tests, most doctors don't even think of the radiation you'll be exposed to during procedures like CT scans.

And in at least one hospital, it's spiraling out of control.

The Cedars-Sinai Medical Center out in la-la Los Angeles says it mistakenly subjected hundreds of possible stroke victims to mega-doses of radiation over an 18-month period. These people – most of whom were seniors – got around 8 times the normal dose of radiation. It was enough to cause at least one of them to start losing his hair.

The FDA sent out a warning letter to all hospitals as a result of these incidents, telling them to review their safety procedures when it comes to these tests. This, my friends, is the federal equivalent of wagging a finger at a misbehaving dog.

In a case at another hospital, a California boy who was supposed to get a two-minute CT scan ended up bombarded by those rays for up to 65 minutes. The hospital says the so- called technician activated the device up to 151 times in a single area.

It could have been much worse – but the parents were worried by the length of the test and demanded that it be stopped.

In the end – as always – your health is left in your hands. So when your doc sends you for a test, ask him if it's really necessary. Sometimes, they are. But many times, they're not.

Even stroke victims can be diagnosed without being subjected to radioactive tests. One new study finds that a quick one-minute assessment of eye movement can accurately identify stroke victims, no brain scan necessary.

But this simple test can be performed by a single doctor without any equipment at all – and that presents a problem for the medical community.

Who can you bill for that?