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Prostate-Specific Antigen (PSA) with Digital Probe Detection (Quantitative)

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

This test measures the level of prostate-specific antigen (PSA) in your blood using a digital probe for precise detection. PSA is a protein produced mainly by the prostate gland.

Quick summary

["PSA levels help assess prostate health, often used to monitor for prostate cancer or other prostate-related conditions."]

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

Key facts at a glance

LOINC
85784-7
Short code
C parap DNA Bld Pos Ql NAA+n-prb
Synonyms
C parap DNA Bld Pos Ql NAA+n-prb
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
non-probe-amp-tar
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Doctors may order this PSA test to check for signs of prostate issues, such as cancer, inflammation, or an enlarged prostate. It can also be used during routine check-ups or after prostate-related procedures.

What to Expect Before the Test

You’ll typically have a simple blood draw, often done while sitting comfortably. If a digital probe is used, it may be inserted into the rectum to measure PSA levels more accurately in certain cases.

How the Test Works

Blood is collected and tested for PSA, a protein that can be detected using advanced digital detection methods. This helps provide a more precise measurement compared to standard PSA tests.

What the Results Mean

Results are interpreted by your healthcare provider based on your overall health, symptoms, and medical history. Elevated PSA levels may signal potential concerns, but they don’t always mean cancer.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: PSA Levels and Prostate Health

Short name

PSA Test (Digital Probe)

Frequently asked questions

What are the normal PSA levels?
Normal PSA levels vary widely among individuals and can change with age, health, and other factors. Your doctor will discuss your results in the context of your health and symptoms.
Can PSA levels rise due to non-cancerous conditions?
Yes, PSA can increase due to conditions like benign prostatic hyperplasia (BPH), prostatitis, or recent ejaculation. Your doctor will consider these factors when evaluating your results.
How often should I get this test?
Frequency depends on your risk factors, age, and medical history. Your doctor will recommend a schedule based on your individual needs.
  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