Test code links throughout this Guide refer to the corresponding test in the User's Guide.
Levels also vary with the phase of the menstrual cycle.
As the follicle matures and ovulation occurs, there is a twofold increase in AD levels that is maintained throughout the luteal phase. AD levels may also be elevated polycystic ovarian disease, congenital adrenal hyperplasia, and tumors of the adrenals or gonads. AD is not helpful in separating adrenal from gonadal causes of excess androgen secretion. Diagnostic significance of steroid hormones in patients with ovarian cancer. Whitley RJ, et al.