A home pregnancy test kit detects which hormone to determine pregnancy?

A home pregnancy test kit detects which hormone to determine pregnancy?

• A. Human chorionic gonadotropin (HCG)
• B. Estrogen
• C. Progesterone
• D. FSH

Answer: (A)

Pregnancy tests detect the hormone HCG in urine. After implantation, the placenta begins producing HCG, and its levels rise quickly in early pregnancy, making it a reliable marker for pregnancy. Home tests use antibodies that bind to HCG to give a positive result when it’s present. Estrogen and progesterone do rise during pregnancy, but they’re not specific or reliable signals for a quick home test. FSH is a pituitary hormone involved in the menstrual cycle and isn’t produced in response to pregnancy, so it’s not used to indicate pregnancy.

Pregnancy tests detect the hormone HCG in urine. After implantation, the placenta begins producing HCG, and its levels rise quickly in early pregnancy, making it a reliable marker for pregnancy. Home tests use antibodies that bind to HCG to give a positive result when it’s present.

Estrogen and progesterone do rise during pregnancy, but they’re not specific or reliable signals for a quick home test. FSH is a pituitary hormone involved in the menstrual cycle and isn’t produced in response to pregnancy, so it’s not used to indicate pregnancy.