In excreted urine, a reliable "marker" that a pregnancy has initiated is ________.

Question

Quizplus · Accepted Answer

Human chorionic gonadotropin (hCG) is a reliable marker for pregnancy initiation and is detected in urine as early as 7-10 days after fertilization. Progesterone and estrogen can fluctuate during the menstrual cycle and are not specific to pregnancy, while follicle-stimulating hormone is involved in reproductive function but not a marker for pregnancy initiation.

In Excreted Urine, a Reliable "Marker" That a Pregnancy Has