At 14 th or 15th week of pregnancy the location of foetus and placenta is determined by

Options

A. polygraphy
B. laparoscopy
C. ultrasound sonography
D. CT scan

Answer

To determine the location of the fetus and placenta at the 14th or 15th week of pregnancy, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Trimesters of Pregnancy**:
- Pregnancy is divided into three trimesters. The first trimester lasts from conception to 12 weeks, the second trimester spans from 12 weeks to 24 weeks, and the third trimester lasts from 24 weeks until the 9th month.

2. **Identify the Relevant Time Frame**:
- The 14th and 15th weeks of pregnancy fall within the second trimester (12 to 24 weeks).

3. **Evaluate the Methods for Determining Fetus and Placenta Location**:
- Several methods can be used to determine the location of the fetus and placenta:
- **Polygraphy**: This is a lie detector test and is not relevant to pregnancy.
- **Laparoscopy**: This is a surgical procedure that involves inserting a camera through the abdominal wall, which is not typically used for determining fetal location.
- **Ultrasound Sonography**: This is a non-invasive imaging technique that uses sound waves to create images of the fetus and placenta, making it the most appropriate method for this purpose.
- **CT Scan**: This is a computerized tomography scan that provides x-ray images and is not commonly used for monitoring pregnancy due to radiation exposure.

4. **Select the Correct Option**:
- Based on the evaluation, the correct method to determine the location of the fetus and placenta at 14th or 15th week of pregnancy is **Ultrasound Sonography**.

### Final Answer:
The location of the fetus and placenta at the 14th or 15th week of pregnancy is determined by **Ultrasound Sonography**.

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