Testosterone, dihydrotestosterone and estrogens circulate in serum bound to Sex Hormone Binding Globulin (SHBG). SHBG concentrations are increased in pregnancy, hyperthyroidism, cirrhosis, oral estrogen administration and by certain drugs. Concentrations are decreased by testosterone, hypothyroidism, Cushings syndrome, acromegaly and obesity.
No special preparation is needed for SHBG. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing SHBG. Your doctor depending on your condition will give specific instructions.
|MALE||All age groups||10 - 57 nmol/L|
|FEMALE||All age groups||18 - 144 nmol/L|