A 22 years old woman presented with recent onset of hirsutism and voice change. What is the best test to be done?

Ans. C. Blood testosterone levelsa. Testosterone is bound to serum hormone binding globulins (SHBG).b. SHBG production in liver is inhibited by androgens and increased by Oestrogen and thyroid hormone.c. Low Oestrogen and thyroid hormone cause fall in SHBG level and this results in some testosterone being released in blood circulation as free T which causes hirsutism.d. Testosterone level >6nmol/l is seen in ovarian tumor and hyperthecosis.e. In PCOD, LH level exceeds 10u/l;T>2.5nmol/L and SHBG<30nmol/l.