What you can expect By Mayo Clinic Staff Print A nurse or medical technician will use a needle to draw blood from a vein, most likely in your arm. The blood sample is then analyzed in the lab to measure your PSA level. Request an Appointment at Mayo Clinic RisksResults April 14, 2016 Print Share on: FacebookTwitter References Hoffman RM. Screening for prostate cancer. http://www.uptodate.com/home. Accessed Jan. 6, 2016. AskMayoExpert. Prostate-Specific Antigen (PSA) levels. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2015. Prostate-specific antigen (PSA) test. National Cancer Institute. http://www.cancer.gov/types/prostate/psa-fact-sheet. Accessed Jan. 6, 2016. Ferri FF. Prostate cancer. In: Ferri's Clinical Advisor 2016. Philadelphia, Pa.: Elsevier; 2016. http://www.clinicalkey.com. Accessed Jan. 6, 2016. Goldman L, et al., eds. Prostate cancer. In: Goldman-Cecil Medicine. 25th ed. Philadelphia, Pa.: Saunders Elsevier; 2016. http://www.clinicalkey.com. Accessed Jan. 6, 2016. Wein AJ, et al., eds. Diagnosis and staging of prostate cancer. In: Campbell-Walsh Urology. 11th ed. Philadelphia, Pa.: Elsevier; 2016. http://www.clinicalkey.com. Accessed Jan. 6, 2016. RelatedPSA: To Test or Not To TestProstate cancerBenign prostatic hyperplasia (BPH) Mayo Clinic in Minnesota has been recognized as the best Urology hospital in the nation for 2016-2017 by U.S. News & World Report. Learn more about this top honor PSA testOverviewProcedure detailsWhy it's doneRisksWhat you can expectResultsClinical trialsMore aboutIn-DepthExpert BlogMultimediaResourcesNews from Mayo Clinic Advertisement Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Advertising & Sponsorship Policy Opportunities Ad Choices Mayo Clinic Store Check out these best-sellers and special offers on books and newsletters from Mayo Clinic. The Mayo Clinic Diet BookMedical News From a Trusted SourceMayo Clinic on Healthy AgingA New Perspective on Alzheimer'sThe Mayo Clinic Diet Online Procedure detailsRequest an AppointmentClinical trials PRC-20167639 Patient Care & Health Information Tests & Procedures PSA test