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General
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Clinical Use:
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In men with serum PSA levels less than 10 ug/L, comparing total PSA levels to free PSA fractions has been proposed as a way to facilitate discrimination between prostate cancer and BPH. |
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Availability:
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Samples are tested Monday-Friday. |
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Aliases/Synonyms:
| FTR, PSA Free:Total Ratio, |
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Code:
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FPSA |
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Handling Instructions (to laboratory):
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Send sample chilled. |
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Hyperlink:
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Reference Interval:
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Free:Total PSA Ratio where total PSA is >median and <10ug/L.
<10% Higher risk
10-25% Indeterminate
>25% Lower risk of cancer of prostate.
Total PSA
Age range Ref interval Median PSA
40 to <50 yrs <2.5 ug/L 0.6 ug/L
50 to <59 yrs <3.5 ug/L 0.7ug/L
60 to <70 yrs <4.5 ug/L 1.1 ug/L
70 to <120 yrs <6.5 ug/L 1.4 ug/L
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Collection Requirements
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Container:
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Serum Sep. Tube-SST (GOLD), |
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Sample Type:
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See container |
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Minimum Collection Volume:
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1mL |
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Collection Instructions:
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Processing Requirements
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Alternate Containers:
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Lithium Heparin-PST (GREEN) |
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Processing Instructions:
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Minimum Assay Volume:
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250uL |
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Stability:
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3 days chilled |
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Transport Instructions (to testing laboratory):
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Send sample chilled. |
Testing Locations
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Performed at:
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Section
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Department
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Site
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Contact Phone
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| Core |
Biochemistry |
Fiona Stanley Hospital |
6152 8140 |
| Core |
Biochemistry |
QEII Medical Centre |
6383 4093 |
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Last Updated : 07-10-2020 13:42 |