Urine test during pregnancy determines the presence of

Options

A. human chorionic gonadotropin hormone
B. estrogen
C. progesterone inhibits the release of LH from putuitary causing regression of corpus luteum
D. luteinising hormone.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Purpose of the Urine Test:**
- The urine test during pregnancy is primarily used to confirm whether a woman is pregnant or not.

2. **Identifying the Key Hormone:**
- The hormone that is detected in the urine during pregnancy is called Human Chorionic Gonadotropin (hCG). This hormone is produced by the trophoblastic cells of the developing embryo.

3. **Mechanism of hCG:**
- After implantation of the embryo in the uterus, the trophoblastic cells start to secrete hCG. This hormone enters the bloodstream and is eventually excreted in the urine.

4. **Significance of hCG:**
- The presence of hCG in the urine indicates that the woman is pregnant. It is crucial for maintaining the corpus luteum, which in turn secretes progesterone.

5. **Role of Progesterone:**
- Progesterone is essential for maintaining the uterine lining and supporting the pregnancy. It helps to create a suitable environment for the developing fetus.

6. **Conclusion:**
- Therefore, the urine test during pregnancy determines the presence of Human Chorionic Gonadotropin (hCG).

**Final Answer:**
The urine test during pregnancy determines the presence of Human Chorionic Gonadotropin (hCG).

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