Guided Drainage Catheter Placement Evaluation (Urinary System Function Assessment via Urine Analysis)
This test evaluates whether your urinary drainage system is working properly after a catheter is placed. It checks for signs of blockage, infection, or other issues in the urinary tract.
["This test helps ensure your catheter is correctly positioned and your urinary system is functioning as expected."]
Key facts at a glance
- LOINC
- 35922-4
- Short code
- CT Guided Drain+cath place
- Synonyms
- CT Guided Drain+cath place
- Category
- chemistry
- 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
Why This Test Is Done
Your healthcare provider may order this test if you have symptoms like pain, difficulty urinating, or signs of infection after a catheter is inserted. It may also be used to confirm proper drainage or detect complications like urinary retention or obstruction.
What to Expect Before the Test
No special preparation is needed. You may be asked to urinate into a container before or after the catheter placement to collect a sample for analysis. If you’re using a catheter, the test may be done during routine follow-up.
What the Test Involves
A small urine sample is collected (either before or after catheter placement) to check for substances like bacteria, white blood cells, or other markers that could indicate infection, blockage, or other urinary issues. The test may also assess drainage clarity or flow.
Possible Results and Their Meaning
Results may show normal drainage, signs of infection (e.g., bacteria or white blood cells), or other abnormalities like crystals (which could indicate kidney stones) or unusual pH levels. Your provider will interpret these findings in the context of your symptoms and medical history.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Frequently asked questions
What causes abnormal results?
How long will results take?
Can I drink fluids before the test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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