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Free psa levels chart...
Free/total psa ratio results
Doctors interpret PSA results based on several factors, including:
Total PSA:
Total PSA ranges may vary slightly. According to a review of studies, the normal ranges for total PSA in nanograms per milliliter (ng/mL) are:
age 49 or younger: 0.0–2.5 ng/mL
age 50 to 59: 0.0–3.5 ng/mL
age 60 to 69: 0.0–4.5 ng/mL
age 70 or older: 0.0–6.5 ng/mL
When total PSA levels are higher than the appropriate range, a person has an increased risk for prostate cancer.
It does not show conclusively that a person has cancer.Doctors will then compare the results of this test with results of a free PSA test.
Free PSA ratio:
A high total PSA level and a low free PSA level generally indicate a risk for prostate cancer.
Free PSA ranges can vary, but in general, a higher ratio of free PSA to total PSA is healthier.
When the ratio of free to total PSA is between 0 and 10 percent, the risk of having cancer may be as high as 56 percent.
When this ratio is greater than 25 percent, this risk reduces to 8 percent.
However, these results are not conclusive evidence for
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