Free PSA / total PSA — lab reference
In the reference guideOften used when total PSA is in an indeterminate zone. Ask your clinician to use the performing-lab risk table.
THE PURSER WELLNESS ENCYCLOPEDIA
662 resources for your curiosity60 matching listings grouped; alternative sources stay available.
What’s searchable?Often used when total PSA is in an indeterminate zone. Ask your clinician to use the performing-lab risk table.
No single normal cutoff fits every patient. Ask your clinician to use age, baseline, trend, prostate size, risk factors, and shared decision-making.
Correct for albumin when appropriate or measure ionized calcium.
Fasting, Gilbert syndrome, hemolysis, and liver disease may alter result.
Ask your clinician to review albumin, globulin, and electrophoresis when indicated.
Screening measure, not a stand-alone treatment target.
Binding abnormalities and severe illness may affect some free-hormone assays.
Useful in selected hyperthyroid states; not a sensitive stand-alone test for hypothyroidism.
Affected by thyroid-binding globulin, pregnancy, estrogen, and medications.
Affected by binding proteins and nonthyroidal illness.
Ask your clinician to read this result with iron, transferrin saturation, and ferritin.
No universal wellness target. Ask your clinician to read this result with B12, folate, B6, kidney, thyroid, genetics, and medications.
Search looks for your words in titles, descriptions, available articles, learning guides, and video captions when available. The closest matches appear first. Duplicate posts are grouped, with links to other places you can read or watch them. Books, chapters, and reports have topic guides here; the original files and full book text are not available in this encyclopedia. Subscriber posts include a title and public summary; open Substack to read the full post.