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CT-Guided Pelvic Drain Catheter Placement with Intravenous Contrast

Published: August 9, 2026Updated: August 16, 2026

A CT-guided procedure used to place a drain in a fluid collection within the pelvis, with intravenous contrast used for imaging.

Quick summary

["This procedure uses CT imaging to safely position a drain in an abnormal pelvic fluid collection."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
89696-9
Short code
CT Guided Pelv Drain+cath plc--W cont IV
Synonyms
CT Guided Pelv Drain+cath plc--W cont IV
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ct
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

This is an image-guided procedure in which a thin drainage catheter is placed into a fluid collection in the pelvis. CT scans provide detailed guidance, and intravenous contrast may be given to help distinguish tissues and fluid.

Why might I need this test?

A pelvic drain may be needed when imaging shows a fluid collection that could be an abscess, blood collection, or another type of fluid buildup. Drainage can remove infected or unwanted fluid and may help reduce swelling, pain, or pressure.

How is the test performed?

You will lie on a CT scanner while the clinician identifies the best route to the collection. After cleaning and numbing the access site, a needle and catheter are inserted using CT guidance. The catheter is then secured so fluid can drain into a collection bag.

How do I prepare for the test?

Follow the instructions provided by the imaging center, including restrictions on eating, drinking, and medicines. Tell the clinician about kidney disease, pregnancy or possible pregnancy, severe allergies, and any prior reaction to contrast dye.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This procedure does not produce a blood-test result; its purpose is to drain a pelvic fluid collection. The appearance and laboratory analysis of the drained fluid can help clinicians determine whether infection, bleeding, or another condition is present. If no safe access route or drainable collection is identified, the procedure may be changed or canceled.

Short name

CT-Guided Pelvic Drainage

Frequently asked questions

Is this procedure painful?
The access site is usually numbed, and sedation may be offered depending on the situation. Patients may feel pressure during needle and catheter placement but should not experience the procedure as sharply painful.
Why is intravenous contrast used?
Intravenous contrast can improve the CT images by highlighting blood vessels and helping the clinician guide catheter placement safely. The team will assess whether contrast is appropriate based on your medical history, particularly kidney function and prior reactions.
What happens after the drain is placed?
The drainage catheter is connected to a collection bag and monitored for fluid output. The care team will provide instructions about wound care, activity, and when to seek medical attention, and will decide when the drain can be removed.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy