PSA
A prostate-specific antigen (PSA) test is a blood test that measures the level of PSA in a sample of your blood. PSA is a protein made by your prostate. The prostate is a gland in the male reproductive system. It lies just below the bladder. It makes the fluid part of semen.
A PSA test is used to screen for prostate cancer. Cancer screening means looking for signs of cancer before it causes symptoms. But screening tests can't diagnose cancer. If a screening test finds signs of cancer, you'll need other tests to find out if you have cancer and how serious it may be.
Source: MedlinePlus, U.S. National Library of MedicineNormal range
1 published range, each from a named source 4 ng/mL drawn: all ages · ARUP Laboratories Test Directory
- Normal
- 0–4 ng/mL
What an abnormal result can be associated with
Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis: only a clinician can interpret your result in context.
details
- Sample
- Serum or plasma · LOINC
- Part of
- Bryan Johnson Blueprint
- Listed under
- Prostate Cancer
- Code
- LOINC 2857-1 · ng/mL
- Also known as
- Prostate specific Ag, Kallikrein 3, Seminin, PSA, PS
See your own PSA Add a lab report and it is drawn against your lab's range, over time. Upload a Blood Test