PSA with Free PSA Ratio Test: Booking, Price, and Results
About PSA with Free PSA Ratio Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | % Free PSA Test, Free-to-Total PSA Ratio, PSAFT, Free Prostatic Specific Antigen, Percent-free PSA, PSA Profile |
| Sample Type | Venous blood (serum) |
| Fasting Required | No fasting required |
| Report Time | 1 to 3 business days |
| Recommended For | Men aged 50 and above (or 40 and above with family history or elevated risk); males only |
| Price | Starting at ₹1,500 |
What is a PSA with Free PSA Ratio Test?
The PSA with Free PSA Ratio Test measures two forms of prostate-specific antigen (PSA), a protein made by the prostate gland, in the blood. It is commonly ordered for men with borderline-elevated PSA levels to help assess the likelihood of prostate cancer versus a benign (non-cancerous) condition. The test requires a small sample of venous blood. It is also referred to as the Free-to-Total PSA Ratio, PSAFT, or percent-free PSA test.
What Does a PSA with Free PSA Ratio Test Measure?
This test analyses two distinct forms of PSA circulating in the blood, as well as the mathematical relationship between them. The table below explains each parameter.
| Parameter | What It Represents |
|---|---|
| Total PSA | The complete concentration of PSA in the blood, including both bound and unbound forms |
| Free PSA | The portion of PSA that circulates freely in the blood, unattached to other proteins |
| % Free PSA (Free-to-Total PSA Ratio) | The proportion of free PSA expressed as a percentage of total PSA; used to refine cancer risk assessment |
Most PSA in the blood binds to proteins such as alpha-1-anti-chymotrypsin. The remaining unbound fraction is called free prostatic specific antigen. The ratio between these two values helps doctors make more informed decisions.
Why is a PSA with Free PSA Ratio Test Done?
This test is ordered when a doctor wants to evaluate prostate health, particularly when total PSA results fall in an uncertain range. Below are the main reasons it may be requested.
Common Symptoms That May Require This Test
The following symptoms are among the most common reasons a doctor may order a % Free PSA test:
- Difficulty starting or stopping urination
- Frequent urination, especially during the night
- A weak or interrupted urine stream
- Straining during urination
- Blood in the urine or semen
- Persistent pelvic pain or discomfort
- Sudden urges and needing to rush to the toilet
- Feeling that the bladder is not empty
Conditions This Test Can Help Detect
This test can assist in identifying or differentiating between the following conditions:
- Prostate cancer (particularly in early, asymptomatic stages)
- Benign prostatic hyperplasia (BPH), a non-cancerous enlargement of the prostate
- Prostatitis, which is inflammation of the prostate gland
How to Prepare and What to Expect
Preparing for this test is straightforward. The steps below will help you get accurate results.
Do You Need to Fast?
No, fasting is not required before a PSAFT test. You can eat and drink normally before your appointment. However, there are a few other precautions you should observe, which are listed below.
Practical Tips Before Your Test
Keep the following in mind in the days leading up to your test:
- Avoid ejaculation for at least 48 hours before sample collection
- Refrain from vigorous exercise, particularly cycling, for 24 to 48 hours before the test
- Do not get tested soon after a urinary tract infection or any urinary procedure
- Wait at least six weeks after a prostate biopsy before taking this test
- Inform your doctor about all medications you are taking, especially finasteride or dutasteride
Step-by-Step Procedure
- A trained phlebotomist will clean a small area on your inner arm with an antiseptic wipe.
- A tourniquet is placed around your upper arm to make the vein more visible.
- A small needle is gently inserted into a vein, usually in the crook of your elbow.
- A small amount of blood is drawn into a collection tube.
- The needle is removed, and a cotton swab or bandage is placed over the area.
- Your sample is labelled and dispatched to the laboratory for analysis.
Factors That Can Affect Accuracy
Several factors can temporarily alter PSA levels, so it is important to mention any of the following to your doctor:
- Recent ejaculation or prostate manipulation
- Vigorous physical activity, especially cycling, in the days before the test
- Active urinary tract infections or prostate inflammation
- Recent prostate biopsy or urinary surgery
- Certain medications, including finasteride and dutasteride
Understanding Your PSA with Free PSA Ratio Test Results
Your results should always be reviewed alongside your medical history and other clinical findings. The table below shows general reference ranges for this test.
| Parameter | Reference Range | Unit |
|---|---|---|
| Total PSA (age 40 to 49) | 0 to 2.5 | ng/mL |
| Total PSA (age 50 to 59) | 0 to 3.5 | ng/mL |
| Total PSA (age 60 to 69) | 0 to 4.5 | ng/mL |
| Total PSA (age 70 to 79) | 0 to 6.5 | ng/mL |
| % Free PSA (when Total PSA is 4.0 to 10.0 ng/mL) | Above 25% suggests lower cancer risk; below 10% suggests higher cancer risk | % |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Certain health conditions and medications can meaningfully affect PSA values. Your doctor will account for these when reviewing your results.
- Medications such as finasteride and dutasteride can reduce total PSA levels by approximately 50%. If you take these medicines, your doctor may adjust the interpretation of your results accordingly.
- Active prostatitis can cause PSA levels to rise significantly, sometimes beyond levels typically seen with benign prostatic hyperplasia. A urinary tract infection or a recent prostate biopsy may also keep PSA elevated for several weeks.
- Age is another natural influence. PSA levels tend to rise gradually with age, which is why age-specific reference ranges are used.
How to Maintain Healthy Levels
The following general wellness habits may support overall prostate health:
- Eat a balanced diet that includes a variety of fruits, vegetables, and whole grains
- Maintain a healthy body weight through regular, moderate physical activity
- Discuss your family history and personal risk factors with your doctor to decide on an appropriate screening schedule
Lupin Diagnostics PSA with Free PSA Ratio Test Price and Home Collection
The PSA with Free PSA Ratio Test is available at Lupin Diagnostics with prices starting at ₹1,500, and home collection is available across multiple cities in India.
| City | Approximate Price (₹) |
|---|---|
| Bhopal | ₹1,500 |
| Mumbai | ₹1,500 |
| Bengaluru | ₹1,500 |
| Hyderabad | ₹1,500 |
| Chennai | ₹1,500 |
| Kolkata | ₹1,500 |
| Guwahati | ₹1,500 |
| Pune | ₹1,500 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers home collection for the PSAFT test across cities in India. All samples are processed in NABL-accredited laboratories by qualified professionals. Your digital report is delivered directly to your email or WhatsApp, so you can share it with your doctor without any extra steps.
Frequently Asked Questions
Total PSA is the combined measurement of all PSA in the blood, including both bound and unbound forms. Free PSA is the fraction that circulates without being attached to other proteins. The Free-to-Total PSA Ratio between these two values helps doctors assess whether an elevated PSA reading is more likely due to cancer or a benign condition.
The percent-free PSA test is most useful for men aged 50 and above whose total PSA falls between 4.0 and 10.0 ng/mL and whose physical examination does not show clear signs of cancer. In this grey zone, the ratio helps clarify risk and guides decisions about further testing.
A low % Free PSA, typically below 10%, is associated with a higher probability of prostate cancer. Men in this range are often advised to undergo further investigation. Your doctor will decide the next steps based on your full clinical picture.
Yes, it is possible. Some forms of prostate cancer do not produce elevated PSA levels. A normal result does not definitively rule out cancer, which is why PSA testing is always considered alongside other clinical assessments.
No fasting is required. You can eat and drink as usual before a PSA with Free PSA Ratio Test. However, you should avoid ejaculation and strenuous exercise for 48 hours before your appointment, as these can temporarily raise PSA levels.
Yes. Medications such as finasteride and dutasteride, commonly prescribed for an enlarged prostate, can lower PSA levels by around 50%. Always tell your doctor about any medicines you are taking before the test so that results can be interpreted accurately.
Abnormal results do not automatically confirm a diagnosis. Your doctor may recommend repeat PSA testing, imaging studies, or a prostate biopsy depending on your results and overall health history. The PSAFT test is one piece of a broader clinical evaluation, not a standalone diagnosis.
PSA with Free PSA Ratio Test: Booking, Price, and Results
