Question

Presence of which hormone in urine confirms pregnancy?

• A. Oxytocin
• B. Progesterone
• C. HCG
• D. Estrogen

Hint:

All home pregnancy test kits work by detecting hCG hormone in urine.

Answer 1

The Correct Option is C

Step 1: Understanding pregnancy hormones.
After fertilization and implantation, the developing embryo releases specific hormones that help maintain pregnancy. These hormones can be detected in blood or urine.
Step 2: Role of hCG.
Human Chorionic Gonadotropin (hCG) is secreted by the trophoblast cells of the developing embryo soon after implantation. This hormone maintains the corpus luteum and supports progesterone secretion.
Step 3: Diagnostic significance.
Pregnancy test kits are designed to detect hCG in urine, as its presence is a reliable indicator of pregnancy.
Step 4: Analysis of options.
(A) Oxytocin: Involved in childbirth and milk ejection.
(B) Progesterone: Important for pregnancy maintenance but not used for urine confirmation.
(C) HCG: Correct hormone detected in urine during pregnancy.
(D) Estrogen: Present in both pregnant and non-pregnant females.
Step 5: Conclusion.
Presence of hCG in urine confirms pregnancy.