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| Range (%) | Interpretation |
|---|---|
| < 5.0 | Normal (Typical for pre-menopausal women) |
| 5.0 – 10.0 | Mildly Elevated (Suggestive of PCOS) |
| > 10.0 | Significant Hyperandrogenism |
A critical evaluation of simple methods for the estimation of free testosterone in serum.
FAI is a useful screening tool for hyperandrogenism in women, especially in PCOS. It correlates well with free testosterone calculated by equilibrium dialysis. Note: Units for both T and SHBG must be nmol/L.