Find a CT Scan Near You
What is a CT Scan?
A CT (computed tomography) scan is an imaging test that helps healthcare providers detect diseases and injuries. These scans are painless and noninvasive. Healthcare providers use CT scans to see things that regular X-rays can’t show.
Why is a CT Scan done?
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1. Head & Brain
- Stroke or brain hemorrhage
- Brain tumors
- Head injuries
- Hydrocephalus (fluid buildup in the brain)
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2. Chest & Lungs
- Pneumonia or lung infections
- Pulmonary embolism (blood clot in the lungs)
- Lung cancer or nodules
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3. Heart & Blood Vessels
- Coronary artery disease (heart blockages)
- Aneurysms (weakening of blood vessels)
- Vascular diseases
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4. Abdomen & Pelvis
- Liver, kidney, pancreas, and spleen disorders
- Appendicitis
- Tumors or cysts
- Kidney stones
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5. Bones & Joints
- Fractures and bone injuries
- Spinal cord problems
- Arthritis detection
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6. Cancer Detection & Monitoring
- Locating tumors
- Assessing cancer spread (staging)
- Guiding biopsies and treatments
CT Scan Prep
- Fasting: If contrast dye is needed, you may be asked to avoid eating for a few hours.
- Remove Metal Objects: Jewelry, glasses, and other metal items should be removed.
Inform Doctor About:
- Pregnancy (CT scans use radiation)
- Allergies to contrast dye
- Kidney problems (as contrast dye can affect kidney function)
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Frequently Asked Questions
General Questions
What is a CT Scan?
A CT (Computed Tomography) scan is an advanced imaging technique that uses X-rays and computer processing to create detailed cross-sectional images of the body. It helps diagnose various conditions, including injuries, tumors, infections, and internal bleeding.
How is a CT scan different from an X-ray?
A CT scan provides more detailed images than a standard X-ray. It captures multiple angles and creates a 3D image, allowing doctors to examine tissues, bones, and organs more precisely.
Is a CT scan painful?
No, a CT scan is a painless procedure. You may experience slight discomfort if contrast dye is used or if you need to hold still for an extended period.
How long does a CT scan take?
Most CT scans take about 5-15 minutes, depending on the area being scanned and whether contrast dye is used.
Frequently Asked Questions
Preparation & Safety
Do I need to prepare for a CT scan?
Preparation depends on the type of scan:
- If contrast dye is used, you may need to fast for 4-6 hours before the scan.
- Remove metal objects (jewelry, glasses, etc.) before the scan.
- Inform your doctor if you have kidney problems, diabetes, or allergies to contrast dye.
Is a CT scan safe?
Yes, CT scans are generally safe. However, they use a small amount of radiation. Your doctor will ensure the benefits outweigh any risks, especially for pregnant women or those requiring frequent scans.
Can I have a CT scan if I am pregnant?
CT scans are not recommended during pregnancy unless absolutely necessary. If imaging is needed, an MRI or ultrasound may be a safer alternative.
Frequently Asked Questions
Contrast Dye & Side Effects
What is contrast dye, and why is it used?
Contrast dye is a special liquid that improves the visibility of organs, blood vessels, and tissues. It may be given orally, through an IV, or as an enema (for certain abdominal scans).
Are there side effects of contrast dye?
Most people tolerate contrast dye well. Some may experience:
- A warm sensation or metallic taste (temporary)
- Mild nausea or itching (rare)
- Allergic reactions (very rare – inform your doctor if you have a history of allergies)
How long does contrast dye stay in the body?
The dye is typically eliminated from the body through urine within 24 hours. Drinking plenty of water helps speed up the process.
Frequently Asked Questions
After the Scan
Can I resume normal activities after a CT scan?
Yes, you can return to regular activities immediately, unless you received sedation or contrast dye, in which case you may need to wait briefly.
When will I get my CT scan results?
Results are usually available within 24-48 hours. Your doctor will review them and discuss the findings with you.
Will my insurance cover a CT scan?
Many health insurance plans cover CT scans, but coverage depends on your provider and policy. Check with your insurance company for details.
Frequently asked questions
Special Cases & Additional Information
Can children get a CT scan?
Yes, but doctors try to limit radiation exposure in children. If necessary, a CT scan will be done with the lowest possible dose of radiation.
Can I drive after a CT scan?
Yes, unless you were given sedatives. If you received contrast dye, it does not affect driving ability.
What happens if my scan shows an abnormality?
Your doctor will discuss the findings and recommend further tests or treatment if needed. In some cases, additional imaging (MRI, biopsy, or ultrasound) may be required.
