58 year-old man present with complain of urinary frequency, hesitancy, or dysuria. A digital rectal examination confirms the presence of a firm, hard, asymmetrical and stony prostate. . As next investigation, PSA levels test was done. All are true about PSA except?

**Core Concept**
The **prostate-specific antigen (PSA)** is a glycoprotein produced by the prostate gland, and its levels can be elevated in various conditions, including **prostate cancer**, **benign prostatic hyperplasia (BPH)**, and **prostatitis**. The PSA test is a blood test used to measure the level of PSA in the blood.

**Why the Correct Answer is Right**
Since the correct answer is not provided, let's discuss the general concept of PSA. Elevated PSA levels can indicate **prostate cancer**, but also other non-cancerous conditions. The PSA test can help identify individuals at risk, but it is not definitive for diagnosis.

**Why Each Wrong Option is Incorrect**
**Option A:** (No information provided)
**Option B:** (No information provided)
**Option C:** (No information provided)
**Option D:** (No information provided)

**Clinical Pearl / High-Yield Fact**
It's essential to remember that a single elevated PSA level does not necessarily indicate **prostate cancer**. Other factors, such as **free-to-total PSA ratio**, **PSA velocity**, and **digital rectal examination (DRE) findings**, should be considered when evaluating the risk of **prostate cancer**.

**Correct Answer:**

✓ Correct Answer: A. Upper-age-specific PSA value for this patient is 6.5 ng/ml