Test Detail
Understanding the Test
Interpreting Results
FAQ's
City Price Info
Home Collection
Other Tests
Content created by
Written by
Dr. Shreya Gupta
BDS, MDS - Oral and Maxillofacial Pathology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
Want to know more?
Read our Editorial Policy

Prostate Specific Antigen (Free) PSA

799850 6% Off
You need to provide
Blood
This test is for
Male
Test Preparation
  1. Do not give sample within 7 days of Digital Rectal Examination (DRE) or Rectal Prostatic Ultrasonography.

Understanding Prostate Specific Antigen (Free) PSA


What is Prostate Specific Antigen (Free) PSA?

The Prostate-Specific Antigen (Free) Test measures the levels of unbound or free prostate-specific antigen (PSA) in blood. PSA in the blood is found as either complexed PSA (bound to other proteins) or free PSA. Free and total PSA tests can help diagnose prostate problems including prostate cancer. However, the results are only meaningful when compared with those of a total PSA test.

A higher ratio of free PSA to total PSA indicates a lower risk of prostate cancer. On the other hand, a low ratio of free PSA to total PSA indicates a higher risk of having prostate cancer. Free PSA tests are quicker, cheaper, and less invasive than biopsies, but they cannot confirm or rule out cancer. If the levels initially indicate a possible risk of prostate cancer, a biopsy might be recommended.

What is Prostate Specific Antigen (Free) PSA used for?

The PSA (Free) Test is performed:

·      To identify the need for Prostate biopsy in patients with increased PSA (Total) levels

·   To differentiate between Prostate cancer and other benign conditions of the Prostate gland like BPH

 

 

Interpreting Prostate Specific Antigen (Free) PSA results


Interpretations

The normal value of PSA (total) in blood is below 4.0 ng/ml

Total PSA levels roughly between 4.0 and 10.0 ng/ml are considered in “grey zone” and the probability of finding prostate cancer based on % free PSA in such cases is given below:

 

% free PSA

   Probability of prostate cancer

0%–10%

   56%

10%–15%

   28%

15%–20%

   20%

20%–25%

   16%

Greater than 25%

     8%

 

Some patients with a “normal” total PSA may have cancer. So, some doctors order both tests at the same time as a low total PSA and a low percentage of free PSA would probably indicates biopsy in these cases.

Answers to Patient Concerns & Frequently Asked Questions (FAQs) about Prostate Specific Antigen (Free) PSA


Frequently Asked Questions about Prostate Specific Antigen (Free) PSA

Q. Is there any preparation required before the PSA test?

You should not have produced semen during sex or masturbation (ejaculated) in the previous 48 hours or Exercised heavily in the previous 48 hours. You should not have undergone a prostate biopsy in the previous six weeks or had a rectal examination (a digital rectal examination) in the previous week.

Q. What factors can affect the test results?

The PSA levels in the blood can be affected by a number of factors including: · Ejaculation · Direct prostate examinations · Physical activities like cycling, horse-riding, etc. · Chemotherapy · Infections of the prostate gland · Prostate Biopsy · Cystoscopy (a procedure where an endoscope is inserted through the urethra to examine the urinary bladder) · Urinary catheter · Urinary tract infections

Q. What additional tests can be prescribed by your doctor in case the result of PSA test is not normal?

Additional tests that may be prescribed in case of abnormal PSA test result are: · Digital Rectal Examination (DRE) · Free PSA Test · Urinalysis · Prostate Ultrasound · Prostate Biopsy

Q. What other ways are the PSA test results evaluated to help in diagnosis?

PSA Test results can also be evaluated in the following ways: · PSA Velocity: Estimates increase or decrease in PSA levels over time. A significant increase indicates cancer. Faster the increase in PSA, more aggressive is the cancer. · PSA Doubling Time: Also tracks PSA increase by measuring the time in which PSA levels double. · PSA Density: Measures PSA levels in blood against volume of the prostate gland seen by ultrasound. Greater PSA levels than expected for the visible volume of prostate indicate chance of cancer. · Age-specific PSA: PSA levels increase with age, hence the normal range of PSA is to be established for the age of the particular person being tested.

Q. What is BPH?

Benign Prostatic Hyperplasia or BPH is a condition characterized by enlargement of the prostate gland. Enlargement due to BPH is usually caused due to aging and does not develop into cancer. The enlarged prostate puts pressure on the urethra and leads to blockage, causing urinary retention, weak or no urine flow, urinary bladder stones, infections or kidney damage.

Q. Can the PSA test detect all types of prostate cancer?

Increased PSA level is usually an indication of prostate cancer. However, it cannot confirm the diagnosis of cancer since elevated PSA levels can be seen in other conditions as well. Also, PSA levels are not significantly increased in slow growing forms of prostate cancer and many times prostate cancer can occur without increased PSA levels. PSA is usually accompanied by other tests like Digital Rectal Examination and biopsy to confirm the diagnosis of cancer.

Q. Is there any risk associated with this test?

There is no risk associated with the test. However, since this test involves a needle prick to withdraw the blood sample, in very rare cases, a patient may experience increased bleeding, hematoma formation (blood collection under the skin), bruising or infection at the site of needle prick.
+ more

Prostate Specific Antigen (Free) PSA test price for other cities


Price inMumbaiRs. 799
Price inBangaloreRs. 799
Price inGurgaonRs. 799
Price inKolkataRs. 799
Price inNoidaRs. 810
+ more

Book Prostate Specific Antigen (Free) PSA at-home

Easy online booking
Search for tests and packages, book a time and select address for seamless at-home lab tests.
Live tracking of phlebotomist
Stay informed with live tracking of our phlebotomist's location for seamless sample collection.
Safe collection
Our phlebotomists follow strict safety protocols to collect samples at home on time.
Sample received at lab
Your sample is bought to our laboratory for testing by our qualified experts.
Quick reports, free follow up
Reports are sent to your email. A free doctor follow up is provided to understand the report better.

INDIA’S LARGEST HEALTHCARE PLATFORM

260m+
Visitors
31m+
Orders Delivered
1800+
Cities
Get the link to download App
Reliable

All products displayed on Tata 1mg are procured from verified and licensed pharmacies. All labs listed on the platform are accredited

Secure

Tata 1mg uses Secure Sockets Layer (SSL) 128-bit encryption and is Payment Card Industry Data Security Standard (PCI DSS) compliant

Affordable

Find affordable medicine substitutes, save up to 50% on health products, up to 80% off on lab tests and free doctor consultations.

Know more about Tata 1mgdownArrow

Access medical and health information

Tata 1mg provides you with medical information which is curated, written and verified by experts, accurate and trustworthy. Our experts create high-quality content about medicines, diseases, lab investigations, Over-The-Counter (OTC) health products, Ayurvedic herbs/ingredients, and alternative remedies.

Order medicines online

Get free medicine home delivery in over 1800 cities across India. You can also order Ayurvedic, Homeopathic and other Over-The-Counter (OTC) health products. Your safety is our top priority. All products displayed on Tata 1mg are procured from verified and licensed pharmacies.

Book lab tests

Book any lab tests and preventive health packages from certified labs and get tested from the comfort of your home. Enjoy free home sample collection, view reports online and consult a doctor online for free.

Consult a doctor online

Got a health query? Consult doctors online from the comfort of your home for free. Chat privately with our registered medical specialists to connect directly with verified doctors. Your privacy is guaranteed.