prostate specific antigen test

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The prostate-specific antigen (PSA) test measures blood levels of a protein produced by prostate gland cells, aiding in prostate cancer screening and treatment monitoring.​

Purpose and Procedure

It screens asymptomatic men for early cancer detection and follows PSA trends post-diagnosis to assess progression or recurrence. A simple blood draw is used, with results typically reported in ng/mL; levels above 4 ng/mL often prompt further evaluation like digital rectal exam (DRE) or biopsy.​

Limitations and Causes of Elevation

Elevated PSA lacks specificity for cancer, rising due to benign prostatic hyperplasia (BPH), prostatitis, urinary infections, or even recent ejaculation/ejaculation. Early cancers may not elevate it sufficiently, so it’s combined with DRE and imaging for accuracy.

Схожі:

  1. cancer, penis
  2. antigen, prostate specific
  3. gland, prostate
  4. tumor marker