If your healthcare provider has recommended a CT angiogram, you might have some questions. Whether this is your first scan or you’ve had one before, knowing what to expect can help you feel more prepared and at ease.
In this guide, we’ll cover everything you need to know, from how to prepare for your scan to what happens during and after the procedure. You’ll also learn about contrast dye, why it’s used, and how to ensure a smooth experience with minimal side effects.
By understanding each step, you can approach your CT angiogram with confidence and clarity. Keep reading to find out how to get ready, what to expect during your appointment, and how to care for yourself afterward.
Preparing for your CT angiogram scan
A CT angiogram is a specialized imaging study that provides detailed pictures of your blood vessels. Your healthcare provider may recommend this scan to check for aneurysms, blockages, or other vascular conditions. Proper preparation ensures the best image quality and a smooth experience.
If this is your first CT angiogram, you might be wondering how to prepare. Following your healthcare provider’s instructions is key. Below, we’ll go over what you need to know before your appointment, including fasting guidelines, medication adjustments, and helpful preparation tips.
How should I get ready for my CT angiogram appointment?
Your healthcare provider will give specific preparation instructions. In many cases, you’ll need to fast for a few hours before the scan, especially if contrast dye is used. This improves image quality by preventing interference from food and drinks.
If you take daily medications, ask your provider if any adjustments are necessary. Some medications, particularly those affecting kidney function or blood sugar, may require special precautions. Staying well-hydrated the day before your scan can also help your body process the contrast dye more efficiently.
What should I wear to my scan? What should I avoid?
Wearing the right clothing can make your scan more comfortable and efficient. Choose loose, comfortable clothing without metal fasteners like zippers, buttons, or hooks.
Metal can interfere with the scan and may need to be removed. Jewelry, watches, and other metal accessories should also be taken off before the scan.
If you wear glasses, dentures, or hearing aids, you may need to remove them during the scan. If you have body piercings, check with your provider to see if they need to be removed beforehand.
What questions should I ask my healthcare provider before a CT angiogram?
- Do I need to fast before my CT angiogram, and for how long?
- Should I adjust my medications before the scan?
- How long will the scan take?
- What can I expect after my CT angiogram?
If you’re receiving contrast dye, you should also ask about potential side effects and whether any precautions are needed. Your healthcare provider can provide guidance tailored to your specific health needs.
Getting contrast dye for your CT angiogram
A CT angiogram often involves the use of contrast dye to highlight blood vessels in the images. This helps assess circulation and detect conditions like blockages or aneurysms. If you’ve never had contrast dye before, you might have questions about how it works and what to expect.
What is contrast dye? Why is it used in a CT angiogram?
Contrast dye is a special liquid that enhances image clarity during your CT angiogram. Without it, blood vessels can be harder to distinguish from surrounding tissues. The dye temporarily highlights these structures, giving radiologists a clearer view of your circulation.
Most contrast dyes used in CT scans contain iodine, which makes blood vessels more visible. This improved visibility helps in diagnosing conditions such as narrowed arteries, blockages, and aneurysms. The dye is safe for most people, but certain precautions may be necessary.
How is contrast dye usually administered for a CT angiogram scan?
For a CT angiogram, contrast dye is typically given through an IV in your arm or hand. The injection takes just a few seconds, allowing the dye to circulate quickly through your bloodstream. This ensures your blood vessels are more visible during the scan.
You may feel a cool sensation in your arm followed by warmth or a metallic taste. These effects are normal and pass within minutes.
What should I know about receiving contrast dye?
Most people tolerate contrast dye well, but it’s important to inform your healthcare provider if you have allergies, especially to iodine or contrast agents. In some cases, medication may be recommended beforehand to reduce reaction risks.
During your CT angiogram scan
A CT angiogram scan is quick and painless. The imaging takes only a few minutes, but your full appointment may last longer. Know that it takes a little time to prepare for your scan and to monitor your condition for a short while afterward.
What should I expect during a CT angiogram scan?
When you arrive, a medical professional will review the process and answer any last-minute questions you have. If contrast dye is used, an IV will be placed before the scan.
Expect to lie on a moving table that passes through a CT scanner, which is open on both ends. During the CT scan, you may hear whirring or buzzing sounds as images are captured. A technician will monitor you and provide instructions throughout the study.
How will I be positioned for the scan? Why will I need to hold my breath?
You’ll lie flat on your back while the table moves through the scanner. Cushions or straps may be used to keep you comfortable and still. Remaining in the proper position on your back the whole time helps capture the most accurate images.
During the scan, you’ll be asked to hold your breath briefly. This prevents motion blur, ensuring the clearest possible images. The technician will let you know when and how long to hold your breath, usually for just a few seconds at a time.
How long does a CT angiogram typically take, from start to finish?
The actual scan takes about 10 to 15 minutes, but your total visit may be longer. Preparation, including IV placement and positioning, can take 15 to 30 minutes. If contrast dye is used, you may need a short observation period afterward.
From check-in to completion, expect your appointment to last about 45 minutes to an hour. This allows time for necessary steps while keeping the process smooth and efficient.
After your CT angiogram
Recovery from a CT angiogram is usually quick and easy. Most people can resume normal activities right away, but if contrast dye was used, a few extra precautions can help your body process it.
What should I expect after a CT scan with contrast dye?
If you receive contrast dye, your body will eliminate it naturally through urination over the next several hours. Drinking plenty of water can help speed up this process.
You may be asked to stay briefly for observation of any side effects. Once cleared, you can return to your usual activities unless instructed otherwise by your healthcare provider.
What temporary side effects do some people experience after a CT angiogram?
Mild side effects like warmth, a metallic taste, or slight nausea can occur but typically fade quickly. Some people experience temporary fatigue or headaches, which usually resolve on their own.
Serious reactions are rare, but if you develop itching, swelling, or trouble breathing, seek medical attention. Let your healthcare provider know about any unusual symptoms so they can provide guidance.
How long will it take to get my CT angiogram results? Who will interpret them?
The time it takes to receive your CT angiogram results can vary, but in most cases, they are available within a few days. After your scan, a radiologist will carefully examine the results before sending a detailed report to your healthcare provider.
Once your provider receives the report, they will review the results with you and explain what they mean for your health. If urgent issues are detected, your provider may contact you sooner to go over the results and discuss the next steps.
How to schedule your CT appointment with us
Touchstone Medical Imaging offers CT scans in Arkansas, Colorado, Florida, Montana, Oklahoma, and Texas.
Reach out to us at Touchstone, and we’ll help you schedule an appointment at an imaging center near you today.
We’re here to help you get the answers you need.
Frequently Asked Questions (FAQ)
A: Your doctor may ask you to avoid eating for a few hours before the scan, and to stay well-hydrated unless instructed otherwise.
A: Wear loose, comfortable clothing without metal zippers or buttons, and remove any jewelry, as metal can interfere with the imaging.
A: Ask about any medication adjustments, possible allergies to contrast dye, and what to expect during and after the procedure.
A: Contrast dye helps highlight blood vessels in the scan, making it easier for doctors to assess circulation and detect blockages.
A: It is typically injected into a vein in your arm through an IV, sometimes causing a warm sensation or a metallic taste.
A: You will lie on a table that moves through the CT scanner while the machine takes detailed images of your blood vessels.
A: You can usually resume normal activities right away, though staying hydrated helps flush the contrast dye from your system.
A: A radiologist will analyze your images, and your provider will typically discuss the results with you within a few days.