What each sample type measures (mechanism & biology) Urine hormone testing typically measures metabolites of sex steroids (for example, estrone-3-glucuronide [E3G] is a urinary estrogen metabolite; pregnanediol glucuronide [PdG] is a progesterone metabolite) or excreted intact peptides (urinary LH or hCG) after renal filtration/conjugation, so results reflect integrated secretion over hours rather than an instantaneous serum concentration. UrinaryContinue reading “Urine vs Blood Tests for Fertility Monitoring | Best Hormone Tests for Menopause Diagnosis”