Free PSA / total PSA — lab reference
Some search terms matchedOften used when total PSA is in an indeterminate zone. Ask your clinician to use the performing-lab risk table.
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What’s searchable?Often used when total PSA is in an indeterminate zone. Ask your clinician to use the performing-lab risk table.
May assist selected fertility evaluations; not a routine wellness marker.
Ask your clinician to use exact assay cutoff and clinical indication.
Collect at a defined time. Assay-specific; dynamic testing may be required.
Time-specific and assay-specific.
Your clinician may request a morning sample, collected and handled in a particular way, alongside a cortisol test.
Age, sex, nutrition, liver disease, diabetes, and assay matter.
Pulsatile secretion makes random GH difficult to interpret; stimulation/suppression testing may be needed.
Ask your clinician to read this result with calcium, phosphorus, magnesium, vitamin D, and kidney function.
Sodium intake, posture, potassium, time, medications, and renin method are essential.
Direct renin and plasma renin activity are not interchangeable.
How you sit or lie down for the sample, and stress during collection, can affect this result. Use the cutoff from the lab that ran your test.
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