PROSTATE SPECIFIC ANTIGEN, FREE (FREE PSA) (SDL12248)
https://www.scanlabglobal.com/shop/sdl12248-prostate-specific-antigen-free-free-psa-sdl12248-7514
https://www.scanlabglobal.com/web/image/product.template/7514/image_1920?unique=18393fc
Measures free PSA in serum for prostate cancer risk. Low free/total PSA ratio suggests malignancy, guiding biopsy or MRI.
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