LetsGetChecked PSA Test
Blood Test Types
Total Prostate Specific Antigen (PSA)
Total Prostate Specific Antigen (PSA) refers to the total volume of PSA in the blood. PSA is found in semen and in the bloodstream.
Free Prostate Specific Antigen (PSA)
Free Prostate Specific Antigen (PSA) refers to the amount of PSA in the blood that is not bound to other proteins. Free PSA levels are divided by total PSA to calculate the prostate specific antigen ratio.
Calculated Prostate Specific Antigen Ratio
Calculated Prostate Specific Antigen (PSA) Ratio refers to total PSA versus free PSA levels. If you have a high PSA level and a low level of free PSA, it may be more likely that you have prostate cancer.
Prostate cancer is one of the most common cancers in men worldwide. Prostate cancer will often present no symptoms in the early stages. If you have any concerns about prostate cancer, you should talk to your physician.
Should symptoms occur, they may include:
- An increased need to urinate, especially at night
- A sudden need to urinate
- Feeling like the bladder has not emptied fully
- Difficulty starting or stopping a stream of urine
- Visible blood in semen and/or urine
- Unexplained weight loss
- Pain in the pelvis, thighs, and back
- Erectile dysfunction