31 doctors weighed in:
What is a psa test?
31 doctors weighed in

Morgan Daul
General Practice
8 doctors agree
In brief: Prostate Specific Ag
Prostate-specific antigen (psa) test is a standard test that measures the amount of circulating protein produced by the prostate.
It is normal for men to have a low level of psa in their blood; however, prostate cancer or benign (not cancerous) conditions can increase a man’s psa level. Therefore, it is important for men to start yearly screening at or before 50 based on family history.

In brief: Prostate Specific Ag
Prostate-specific antigen (psa) test is a standard test that measures the amount of circulating protein produced by the prostate.
It is normal for men to have a low level of psa in their blood; however, prostate cancer or benign (not cancerous) conditions can increase a man’s psa level. Therefore, it is important for men to start yearly screening at or before 50 based on family history.
Morgan Daul
Morgan Daul
Answer assisted by Morgan Daul, Medical Student
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1 comment
Dr. Andrew Turrisi
No single PSA test should ever be the basis of a decision. The patterns and changes over time are more reliable than a single test.
Dr. Devon Webster
Internal Medicine - Oncology
6 doctors agree
In brief: Controversial test
There is disagreement about whether men should have a psa test for prostate cancer screening.
The only consensus is that men over 75 should not have a psa, and that men at high risk for prostate cancer (black men, family history in father or brothers) probably should. For a man at average risk, his doctor should have a detailed conversation about the pros and cons of the psa test.

In brief: Controversial test
There is disagreement about whether men should have a psa test for prostate cancer screening.
The only consensus is that men over 75 should not have a psa, and that men at high risk for prostate cancer (black men, family history in father or brothers) probably should. For a man at average risk, his doctor should have a detailed conversation about the pros and cons of the psa test.
Dr. Devon Webster
Dr. Devon Webster
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1 comment
Dr. Andrew Turrisi
It's really not the test itself, but what is done after the test that causes controversy. Not all cases warrant biopsy; not all + biopsies warrant treatment
5 doctors agree
In brief: Key Test
Prior to prostate specific antigen testing, prostate cancer (cap) was mainly detected at later stages.
This lead to lower survival rates. The psa test has allowed for earlier detection, when the disease is more curable and survivable. Controversy exists, however, over whether psa detects some cancers that don't need treatment. Until more informative tests are available, psa remains key in cap.

In brief: Key Test
Prior to prostate specific antigen testing, prostate cancer (cap) was mainly detected at later stages.
This lead to lower survival rates. The psa test has allowed for earlier detection, when the disease is more curable and survivable. Controversy exists, however, over whether psa detects some cancers that don't need treatment. Until more informative tests are available, psa remains key in cap.
Dr. Robert Donato
Dr. Robert Donato
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Nicole Bressler
Emergency Medicine
5 doctors agree
In brief: Prostate Test
Psa stands for prostate specfic antigen.
It is a blood test that helps determine the presence or risk of getting prostate cancer. It can change in various conditions such as infection, inflammation, or cancer. It is a test used as an adjunct to other tests to help identify prostate problems and overall prostate health but is not exclusive for prostate cancer.

In brief: Prostate Test
Psa stands for prostate specfic antigen.
It is a blood test that helps determine the presence or risk of getting prostate cancer. It can change in various conditions such as infection, inflammation, or cancer. It is a test used as an adjunct to other tests to help identify prostate problems and overall prostate health but is not exclusive for prostate cancer.
Nicole Bressler
Nicole Bressler
Answer assisted by Nicole Bressler, Medical Student
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Dr. Chakshu Gupta
Pathology
4 doctors agree
In brief: Prostate test
Psa or prostate specific antigen is a blood test that is used to screen for prostate cancer along with a clinical exam. A cut off value of 4 is often used to offer biopsy for diagnosis.
Not all values above 4 are due to cancers and some cancers have psa less than 4. Some recent guidelines have recommended against use of psa to screen for prostate cancer.

In brief: Prostate test
Psa or prostate specific antigen is a blood test that is used to screen for prostate cancer along with a clinical exam. A cut off value of 4 is often used to offer biopsy for diagnosis.
Not all values above 4 are due to cancers and some cancers have psa less than 4. Some recent guidelines have recommended against use of psa to screen for prostate cancer.
Dr. Chakshu Gupta
Dr. Chakshu Gupta
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Dr. Arthur Heller
Internal Medicine - Gastroenterology
4 doctors agree
In brief: Blood test re: pros
Prostate specific antigen is a protein made by prostate cells.
Bigger prostate (more cells), tend to higher values. Imperfect test-can have normal psa and have cancer (ca), can have high psa and no ca. Doesn't take the place of a rectal exam. Issues re: growth of the cancer, especially in older (>75 Y.O.) men. Most die with it, not of it. Still some role: blacks, family history, etc. Talk2md.

In brief: Blood test re: pros
Prostate specific antigen is a protein made by prostate cells.
Bigger prostate (more cells), tend to higher values. Imperfect test-can have normal psa and have cancer (ca), can have high psa and no ca. Doesn't take the place of a rectal exam. Issues re: growth of the cancer, especially in older (>75 Y.O.) men. Most die with it, not of it. Still some role: blacks, family history, etc. Talk2md.
Dr. Arthur Heller
Dr. Arthur Heller
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2 doctors agree
In brief: Psa
Psa is an enzyme in the prostate that liquifies semen after ejaculation.
This protein can be detected in blood when the prostate enlarges, has infection, or cancer.

In brief: Psa
Psa is an enzyme in the prostate that liquifies semen after ejaculation.
This protein can be detected in blood when the prostate enlarges, has infection, or cancer.
Dr. Howard Usitalo
Dr. Howard Usitalo
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Dr. Claude Parola
Internal Medicine
2 doctors agree
In brief: Prostate
Psa stands for prostatic specific antigen, this is a blood test to evaluate the prostate, it can be elevated when the prostate is enlarged, when the prostate is inflamed, prostate cancer can elevates it, prostate stimulation by rectal exam may elevate the psa also.

In brief: Prostate
Psa stands for prostatic specific antigen, this is a blood test to evaluate the prostate, it can be elevated when the prostate is enlarged, when the prostate is inflamed, prostate cancer can elevates it, prostate stimulation by rectal exam may elevate the psa also.
Dr. Claude Parola
Dr. Claude Parola
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Dr. James Lin
Urology
1 doctor agrees
In brief: Here are what we....
- first discovered in 1970 from prostate tissue so believed to be prostate-specific, but disproved since it is detected in female breasts, blood, amniotic fluid, etc.
- used as a test to suggest if a man has high suspicion for prostate caner, - its intended value and usage have fallen into the hole of professional and industrial profit-taking as out-cried by its discoverer 40 yrs later.

In brief: Here are what we....
- first discovered in 1970 from prostate tissue so believed to be prostate-specific, but disproved since it is detected in female breasts, blood, amniotic fluid, etc.
- used as a test to suggest if a man has high suspicion for prostate caner, - its intended value and usage have fallen into the hole of professional and industrial profit-taking as out-cried by its discoverer 40 yrs later.
Dr. James Lin
Dr. James Lin
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