What Is An Acid Phosphate (Total) Test?
Acid Phosphate is an enzyme found in various tissues, including the prostate, bones, liver, spleen and blood cells. The test is primarily used to evaluate prostate health, especially in cases of suspected prostate cancer or other prostate related conditions. However the test is not just limited to prostate related issues, it can also help diagnose bone disorders such as Paget’s disease or metastatic bone cancer as well as certain blood disorders like Gaucher’s disease.
Acid phosphatase exists in multiple forms, with the prostatic type (tartrate-labile) being the most clinically significant. While newer tests like PSA (Prostate-Specific Antigen) have largely replaced acid phosphatase for prostate cancer screening, this test may still be used in specific cases such as monitoring disease progression or response to treatment.
How is the Test Performed?
Sample Collection
The test requires a blood sample.
Sample Analysis
The sample is sent to a lab, where the enzyme activity of acid phosphatase is measured. If prostatic acid phosphatase (PAP) is needed, additional testing with tartrate inhibition may be performed to differentiate it from other forms.
Results
Results are typically available in 5 to 8 days.
What are the symptoms that prompt this test?
Common symptoms that require an Acid Phosphate (Total) test are:
- Difficulty urinating or painful urination
- Blood in urine or semen
- Erectile dysfunction
- Pelvic or bone pain (possible prostate cancer spread)
- Enlarged prostate detected during a physical exam
- Unexplained bone pain or fractures (possible bone disorders)
- Fatigue, anemia or enlarged spleen (indicating Gaucher’s disease)
- Chronic bone pain or deformities (Paget’s disease)
- History of prostate or bone cancer
What are Normal Ranges for This Test?
Men: 0.5 – 2.0 U/L (may vary slightly by lab standards)
Women: 0.1 – 1.5 U/L (lower due to absence of prostatic acid phosphatase)
** Normal levels are dependent on a number of factors including age, gender, testing method and health condition of patient etc. Result interpretation should be done by a qualified doctor or healthcare professional.**
What Happens if Test Results Show Abnormal Levels?
Abnormal acid phosphatase levels could indicate a variety of conditions depending on the patient’s symptoms and medical history. Elevated levels may suggest:
- Prostate cancer
- Paget’s disease
- Multiple myeloma
- Gaucher’s disease
- Hemolytic anemia
If your test results are abnormal, your doctor may order further diagnostic tests like:
- PSA test (Prostate-Specific Antigen)
- Bone scans or imaging
- Liver function tests
- Complete blood count (CBC)
- Biopsy in some cases
A comprehensive evaluation will help the physician determine the root cause and the best treatment strategy.
Additional Information About Acid Phosphate (Total) Test
When to Seek Medical Attention
If you are experiencing pelvic pain, urinary issues or erectile dysfunction, seek immediate medical care.
Related Tests
- PSA Test
- Alkaline Phosphate
- Bone Scan
- Prostate Biopsy
Conditions Affecting Results
Recent prostate exam, trauma, vigorous exercise may temporarily increase acid phosphate levels.
