When should I use the SelectMDx test?
When you are concerned about having prostate cancer based on a PSA test, the SelectMDx test for prostate cancer provides you with more information. The SelectMDx test combines your clinical information with the measurement of two genes in your urine. In this way, it provides you and your physician with an estimate of your chances of having aggressive prostate cancer found upon biopsy.
Furthermore, SelectMDx testing can also aid you and your physician in determining the need for redoing a prostate biopsy if:
- you already underwent a prostate biopsy and cancer cells were not discovered in the collected tissue
- your PSA keeps rising
- you are concerned that the performed biopsy missed prostate tissue with cancer cells
A SelectMDx test should only be done when your PSA has been determined less than 6 months ago.
If you had a prostate biopsy or a transurethral resection of the prostate (TURP), you have to wait 3 months before the SelectMDx test can be done as it may influence the serum PSA levels.
Your physician has to interpret the results with caution when you take 5α-reductase inhibitors such as finasteride or dutasteride, or when you have a urinary tract infection.
If you are already diagnosed with prostate cancer, you are not eligible for using the SelectMDx test.
Read more about your options when you have an elevated PSA.