In a pregnant woman having prolonged labour pains if child birth has to be hastened i.e. ,to aid parturition ,it is advisable to administer a hormone that can

Options

A. Activate smooth muscles
B. increase merabolic rate
C. release glucose into the blood
D. Stimulate ovary

Answer

To answer the question regarding which hormone should be administered to hasten childbirth in a pregnant woman experiencing prolonged labor pains, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Context**: The question states that a pregnant woman is experiencing prolonged labor pains, and we need to find a hormone that can aid in hastening childbirth (parturition).

2. **Identify the Function of Hormones**: We need to consider the roles of various hormones in the body, particularly those involved in childbirth and labor.

3. **Evaluate the Options**:
- **Option 1: Active Smooth Muscle**: This refers to the stimulation of uterine muscles, which are smooth muscles.
- **Option 2: Increased Metabolic Rate**: This is related to thyroxine, which increases metabolic processes but does not directly influence labor.
- **Option 3: Release Glucose into the Blood**: This refers to glucagon, which regulates blood sugar levels but is not involved in childbirth.
- **Option 4: Stimulate Ovary**: This is related to gonadotropic hormones, which stimulate egg production but are not relevant to labor.

4. **Determine the Correct Hormone**: The hormone that stimulates the uterine muscles (smooth muscles) to contract and facilitate childbirth is **oxytocin**. Oxytocin is known for its role in promoting uterine contractions during labor.

5. **Conclusion**: Therefore, the advisable hormone to administer to hasten childbirth in a pregnant woman with prolonged labor pains is **oxytocin**.

### Final Answer:
It is advisable to administer **oxytocin** to hasten childbirth in a pregnant woman having prolonged labor pains.

---