3 mL plain blood
Measured Parameters : Free and Total PSA (serum)
Electrochemiluminescence Immunoassay (Roche Cobas)
≥ 13 yrs:
The free/total PSA ratio is only clinically useful for total PSA levels of 4.1 – 10.0 mg/L. Ratio >0.2 suggests benign condition Ratio 0.1 – 0.2 shows substantial overlap in benign and malignant condition Ratio <0.1 suggests carcinoma of prostate
Mean = 4 hrs, Range: 3 – 5 hrs
Monday – Saturday
Please note that test results obtained with assays from different manufacturers, assay methods, or kits may be different and cannot be used interchangeably.