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Lab240
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Free Prostate-Specific Antigen (PSA)

86 zł
Readiness of result: from 1 day
Choose a nurse's home visit at a special price or get a -15% discount on laboratory visits
Why this test?
  • For early diagnosis of prostate cancer.
  • Detection of relapse and metastases after the treatment.
In what cases is it prescribed?
  • For monitoring the course of the disease, preclinical diagnosis of metastasis and evaluation of the effectiveness of prostate carcinoma therapy.
  • To monitor the condition of patients with prostatic hypertrophy, in order to detect prostate carcinoma as early as possible.
  • Screening examination of men over 50 years old, detection of PSA level dynamics.
Test information

Prostate-specific antigen is a physiological excretory product of the prostate gland. It has enzymatic (protease) activity, reducing the viscosity of semen. It is contained in the cytoplasm of epithelial cells of the prostate ducts.

PSA is found in normal prostate tissue, adenoma and prostate cancer metastases, prostatic juice and seminal plasma, but is not present in other normal or tumorous human tissues. The half-life is 4 days.

In blood serum prostate-specific antigen is found in two forms - free and bound to various antiproteases. The content of free form (f-PSA) is about 10% of the total PSA.

Most of PSA (90%) is bound to alpha 1 anti-chymotrypsin and is available for laboratory determination. A small part of the prostate antigen is bound to alpha 2-macroglobulin and is inaccessible for investigation by conventional methods, because the PSA molecule is inside the complex. The free and bound fractions make up the total PSA.


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How to prepare for testing?
Carry out not earlier than 7 days after any urological manipulations. And after the biopsy – in 3 weeks
Carry out not earlier than 7 days after any urological manipulations. And after the biopsy – in 3 weeks
You can drink clean still water
You can drink clean still water
A few days before the test, stop cycling and other activities
A few days before the test, stop cycling and other activities
Do not smoke for 30 minutes before the study
Do not smoke for 30 minutes before the study
Abstain from sexual intercourse a few days before the scheduled examination. Also, avoid prolonged sitting
Abstain from sexual intercourse a few days before the scheduled examination. Also, avoid prolonged sitting
Do not eat for 2-3 hours before the study
Do not eat for 2-3 hours before the study
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