CT Pulmonary Angiogram with IV Contrast

Specimen Required

NONE

Fasting Required

Purpose of the Test

A CT pulmonary angiogram with IV contrast is a diagnostic imaging test that uses a special dye injected into the bloodstream to help visualize the blood vessels in the lungs. This test is typically ordered when there is suspicion of a blood clot in the lungs or pulmonary embolism.

When this test is required

The test may be requested when a patient presents with symptoms such as shortness of breath, chest pain, or coughing up blood, and there is a high suspicion of pulmonary embolism. Risk factors for pulmonary embolism include recent surgery, cancer, prolonged immobility, and a personal or family history of blood clots.

What the Test Detects

Preparation for the Test

There are some preparations you will need to make before the test. You should inform your healthcare provider of any allergies, particularly to iodine or contrast dye, and any medical conditions you may have. You will likely be asked to fast for a few hours before the test and to avoid any caffeine or other stimulants. You should also wear comfortable, loose-fitting clothing and avoid wearing any jewelry or metal objects during the test.

Sample Requirements

A sample is not required for a CT pulmonary angiogram with IV contrast. Instead, the test involves the injection of a special dye or contrast material through a vein in your arm. You will lie on a table that moves through a scanner, and images will be taken of your lungs to help diagnose any potential blood clots.

Additional Notes

It’s important to note that the CT pulmonary angiogram with IV contrast involves exposure to ionizing radiation, which can increase the risk of cancer. It’s important to discuss the potential risks and benefits of the test with your healthcare provider before undergoing the procedure. Additionally, some people may have an allergic reaction to the contrast material used in the test, so it’s important to inform your healthcare provider of any allergies or medical conditions you may have.

Selected Tests