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Normal prolactin levels for men range from 3 to15 nanograms per milliliter or 3 to15 micrograms per liter. For nonpregnant women, the range is 4 to 23 nanograms per milliliter or 4 to 23 micrograms per liter, according to WebMD.
1 Men in the range of 60 to 69 years have normal PSA levels that are less than 4.5 ng/mL. 2  Men over the age of 70 years have normal PSA levels that are less than 6.5 ng/mL. 3  It is also important to note that the normal ranges of PSA results may vary from one laboratory to another.lder male adults tend to have higher levels of PSA than younger men. The normal levels of PSA as per the age are listed below: 1  Men below the age of 50 years have normal PSA levels that are less than 2.5 ng/mL. 2  Men in the range of 50 to 59 years have normal PSA levels that are less than 3.5 ng/mL.