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Prostate-Specific Antigen (PSA) in Descending Endoscopic Urethral Resection (DUR) Fluid

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

This test measures prostate-specific antigen (PSA), a protein produced by the prostate gland, in fluid collected during a descending endoscopic procedure. It helps assess prostate health or potential abnormalities.

Quick summary

["PSA in DUR fluid may aid in evaluating prostate conditions, especially in cases where standard blood PSA tests are unclear."]

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

Key facts at a glance

LOINC
19782-2
Short code
Proc monit desc Endoscopy stdy
Synonyms
Proc monit desc Endoscopy stdy
Category
coagulation
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 Used

Doctors may order this test if you have symptoms like urinary changes, pain, or if standard PSA tests (from blood) are inconclusive. It can also be used in cases where prostate tissue is removed or examined during a procedure like a DUR.

What to Expect Before the Test

No special preparation is typically needed, but follow your healthcare provider’s instructions. You may need to avoid certain medications or foods that could affect results.

How the Test Is Performed

During the procedure, fluid is collected from the urethra using a flexible scope. The fluid is then sent to a lab for PSA measurement. This test is usually done under sedation or local anesthesia.

What the Results Mean

Results show the concentration of PSA in the fluid. Higher levels may suggest prostate issues, but interpretation depends on clinical context, including symptoms and other tests.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test can provide additional information about prostate health, especially when standard blood PSA tests are ambiguous. It may help identify prostate cancer, inflammation, or other conditions affecting the prostate gland.

Short name

PSA in DUR Fluid

Frequently asked questions

What does a high PSA level in DUR fluid mean?
A high PSA level in DUR fluid may indicate inflammation, infection, or potential prostate abnormalities. However, results should be reviewed by your doctor in the context of your overall health and symptoms.
How is this test different from a standard blood PSA test?
Unlike blood PSA tests, which measure PSA in circulation, this test measures PSA directly in fluid collected from the prostate area. This can offer more localized information about prostate health.
Can this test replace a prostate biopsy?
No, this test is not a replacement for a biopsy. It may help guide further evaluation, but a biopsy remains the gold standard for diagnosing prostate cancer.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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