Prostatic Acid Phosphatase (PAP) Blood Test

Item # LC004747

Prostatic acid phosphatase (PAP) is used in assessing prostate cancer

Prostatic Acid Phosphatase (PAP) Blood Test  - Life Extension

Prostatic Acid Phosphatase (PAP) Blood Test

Item # LC004747

Prostatic acid phosphatase (PAP) is used in assessing prostate cancer

Testing your levels of prostatic acid phosphatase (PAP), an enzyme found in the prostate gland and semen, helps health practitioners assess for abnormal conditions of the prostate, including prostate cancer.

Prostatic acid phosphatase (PAP) is an enzyme that is found in the prostate gland and semen of men. If the prostate isn’t working properly, then PAP is released into the blood. PAP determination in conjunction with PSA measurements is useful in assessing the prognosis of prostate cancer.1,2 Measurement of two markers allows identification of prostate cancer patients who have an elevation of PAP but not of PSA, and thus help monitoring the course of disease and response to treatment.


Fasting is not required for this test. Take all medications as prescribed.


Ejaculation within 48 hours preceding the blood draw may elevate the PSA in some men.


  1. Powell P, Neal D, Gibb I, et al, “Immunologically Measured Serum Markers and Their Role in the Management of Prostate Cancer,” Eur Urol, 1988, 15(1-2):48-53. PubMed ID 2463921.
  2. Han M, Piantadosi S, Zahurak ML, et al: Serum acid phosphatase level and biochemical recurrence following radical prostatectomy for men with clinically localized prostate cancer. Urology 57:707-11, 2001.

The laboratory services are for informational purposes only. It is not the intention of National Diagnostics, Inc and Life Extension to provide specific medical advice but rather to provide users with information to better understand their health. Specific medical advice including diagnosis and treatment will not be provided. Always seek the advice of a trained health professional for medical advice, diagnosis or treatment.

Both the physician and the testing laboratory are independent contractors with whom National Diagnostics, Inc makes arrangements for your blood tests. Neither National Diagnostics, Inc or Life Extension will be liable for any acts or omissions of the physician, the testing laboratory, or their agents or employees.

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Prostatic Acid Phosphatase (PAP) Blood Test

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