CT Drainage/Aspiration

What is a CT Drainage/Aspiration?

A drainage/aspiration is a test in which CAT scan images allow the Radiologist (x-ray doctor) to insert a needle into an abnormal fluid collection in the body. The needle/catheter is inserted to allow fluid to be removed. If the fluid collection is large enough the doctor may leave a catheter in place for a few days up to a few weeks, to allow for continuous drainage.
Procedure time: 1 - 2 hours

Patient Preparation Instructions:

  1. You may be required to have blood work prior to your procedure. Radiology will call you before your exam. Outpatient will have a copy of your lab work if needed.

  2. You may have nothing to eat or drink 6 hours prior to your exam.

  3. You may take normal morning medications with a small amount of water unless you are on:

    • Aspirin – Stop 3-5 days before exam.
    • Coumadin – Stop 3-5 days before exam.
    • Plavix – Stop 3-5 days before exam.
    • Blood Thinners – Stop 3-5 days before exam.
  4. Inform Medical Imaging staff if you are on blood thinners or aspirin.

  5. You MAY be given sedation during your procedure (depending on the extent of your exam).

    • You will need someone to drive you home.

  6. You will be asked to stay for a period of time for observation (up to 3 hours). After the exam, you will be given discharge instructions prior to leaving.

For Your Information:

  1. After registration you will go to an observation area prior to your exam. You will be asked to change into a hospital gown, and an assessment will be done before going to the Radiology Department. You will be taken back to this area for a follow-up assessment prior to leaving.
  2. An IV may be started into your hand or arm if the radiologist requests it.
  3. Please inform Radiology if there is any chance of pregnancy.
  4. The Radiologist will give the results to your doctor. Your doctor will share the results and any follow up with you.
  5. If you have any questions regarding this test, please call 419-394-3335 ext. 3550 for assistance.

Grand Lake Health System
200 St. Clair Street, St. Marys,
Ohio 45885-2400
| 1-419-394-3335 | 1-877-564-6897