When something goes wrong with your body, your doctor needs to don their research hat and discover the underlying cause. To find out why you hurt, they have to see inside your physical self, and technology provides several means for doing so.
One method physicians frequently use is computerized axial tomography (CAT) scans. If you have one of these procedures scheduled, you probably have many questions. Here’s what you need to know about CAT scans.
1. They Don’t Expose You to Much Radiation
Probably the most frequently asked question about CAT scans is, should you be concerned about the amount of radiation? After all, you’ll need to take numerous precautions before entering the examination room, and you can’t have a buddy to hold your hand.
Breathe deeply. Doctors have used CAT scans for the past 15 to 20 years, which is plenty of time to evaluate any unsuspected risks. While you shouldn’t have the procedure unnecessarily, the dangers of your underlying disorder far outweigh those from radiation.
If you still feel nervous, remember, physicians also use the procedure to rule out treatment when your body would heal better on its own. Having your CAT scan as directed can prevent you from protocols that can do more harm than good.
2. They Combine With Other Procedures
When CAT scans originated, they combined x-ray data into 2-dimensional images, letting your physician see not only one but soft tissues like ligaments and tendons. Today, your physician may order a PET and CAT scan combination that allows them to analyze anatomic and metabolic information in one test instead of multiple visits.
Positron emission tomography (PET) scans detect biologic or metabolic activity anywhere in the body. Like some CAT scans, this test will require an injection to track positron position.
3. They Serve Multiple Purposes
If you have had several CAT scans in your life, you’re not alone. Doctors use this imaging test for multiple purposes. One is detecting internal injuries for urgent care, which is why you’ll often, although not always, find imaging centers located in the same plaza as emergency facilities. Many ERs have these devices onsite.
CAT scans also help to detect the presence of cancer. They can reveal masses in your liver or lungs and show changes in heart tissue that indicate disease. This imaging test also helps your doctor locate blood clots and guide them during procedures like biopsies and radiation therapy.
4. The Rules Don’t Limit Use
How many CAT scans will you have in your lifetime? It all varies.
If you still harbor radiation concerns, take heart in that the rules don’t limit your doctor to how many CAT scans they can order in your lifetime. However, your insurance carrier might have restrictions. If you choose your policy, ask about imaging service coverage if you know you get these procedures frequently, such as if you have a traumatic brain injury resulting in cysts that require monitoring.
5. However, You Will Need a Referral
If you seek emergency treatment, your physician may order an onsite CAT scan. In such cases, radiology will take you from your room and explain the procedure. All you have to do is relax and follow the instructions.
However, if you see your primary care physician (PCP), you will probably have your procedure done at an imaging center and report back to your PCP for follow-up care. Learn what to do if your insurance company denies your referral — it doesn’t happen frequently, but it helps to know the appeals process if it does.
6. You Need to Stay Very Still
What directions will you need to follow? All you have to do is remain still — the procedure itself only takes about 10 minutes, so most people have little problem.
If your minor child has to have a CAT scan, you will not be able to enter the room with them due to radiation risks. In some cases, your doctor will have to sedate them if they are unable to stay still. They’ll typically do so through your child’s IV.
7. But the Procedure Will Not Hurt
Fortunately, you won’t have to endure any pain-inspired tears the way you might when your child needs a shot. CAT scans are painless.
Many people find the CAT scan platform accessible for those with mobility challenges. Your imaging technician will assist you with getting on and off the device.
Unlike an MRI, the tube isn’t enclosed on one end, creating fewer issues for those with claustrophobia. Some CAT scan machines have a 300-pound weight limit, and you may need to travel to a location with a larger capacity device if you exceed it.
You may have to use an imaging contrast before some CAT scans. If you do, it can cause an unpleasant sensation in your bladder, as if you have wet your pants. Your imaging technician will advise you of this phenomenon and remind you not to worry. Emptying your bladder before your procedure can ease your mind.
8. Pregnant Mamas Need Extra Precautions
Fortunately, according to the American Council on Radiology, no single diagnostic test contains enough radiation to harm your fetus. However, most doctors do not recommend CAT scans during pregnancy unless they deem that the rewards outweigh the risks.
Your technician will ask you if you are pregnant or suspect you may be — please answer honestly. They can provide you with lead covers and take other precautions to minimize radiation to your womb.
Know What You Need to About CAT Scans Before Your Procedure
Now that you know what you need to know about CAT scans, you can put your mind at ease. This painless procedure helps your doctor prescribe the best treatment or determine when none is necessary.
