CT Scan

In RC Planes of rcplanes (December 20, 2009 1:46 pm)

There are many reasons why a doctor could suggest you get a CT scan. Imaging technology can help doctors diagnose bone tumors or fractures, identify where a tumor or blood clot is located, judge where to go in for surgery or radiation therapy, monitor heart disease damage or detect internal injuries. Unlike an MRI scan, anyone can have a CT for their medical problem, even if they have pacemakers or internal cardioverter defibrillators. The only audience left out from this diagnostic test is pregnant women, who may be better suited for a visit to the sonographer, who’ll perform an ultrasound instead.

The full exam, which should take no more than an hour, can be done in an outpatient clinic or hospital setting. To prepare for CT scans, patients usually have to remove their clothes, any metal objects and jewelry, then put on a hospital gown. Depending on which part of the body is being scanned, some patients need to fast for a few hours and have contrast liquid ingested or injected to emphasize more intricate structures like blood vessels. Some patients are also required to modify their diets and take laxatives. Small children may need to take a sedative so that they can remain calm and still to achieve the best test results and clearest images.

The CT scan is widely heralded because it can create very detailed images, because it’s fast, it’s less expensive than other tests and it’s more widely available than ever before. The fact that the test is painless and non-invasive is also appreciated by patients who want a quick, easy diagnosis. Compared to x-rays, CT scans are much more advanced, medical physicians say. Some suggest that the shortage of radioactive isotopes used in nuclear medicine will actually fuel the CT scanning industry, causing more and more people to take this route of testing in the years to come.

There are certain risks associated with a CT scan that a patient may want to ask his or her doctor about. Pregnant women should avoid exposing their fetuses to any amount of radiation, for one. Additionally, individuals who have asthma or allergies may also find they are allergic to the contrast medium. People with diabetes, asthma, heart disease, kidney problems and thyroid conditions may suffer a reaction to the contrast medium as well. These allergic reactions may arrive in the form of hives, itchiness and swelling for light cases or throat swelling, kidney damage and even death in severe reactions. Some critics argue that the over-use of CT scanning and other medical imaging technology puts patients at an unnecessary cancer risk.

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