Everything You Need to Know Before Your First Ultrasound Appointment
What is an Ultrasound Scan?
An ultrasound scan uses high-frequency sound waves to create real-time images of the inside of your body. Since it uses sound instead of radiation, it is considered one of the safest and most common imaging tests available.
Why is it performed?
Doctors use ultrasound for various reasons, including:
- Investigating unexplained pain, swelling, or lumps.
- Checking internal organs like the liver, thyroid, kidneys, and testicles.
- During Pregnancy: To monitor the baby's growth, development, and position.
- Guiding medical procedures, such as joint injections.
How to Prepare
Preparation depends on the type of scan:
- Bladder or Pelvic Scan: You may be asked to drink several glasses of water and avoid going to the toilet (Full Bladder) to get a clearer picture of the organs.
- Liver or Gallbladder Scan: You might need to fast (avoid eating) for a few hours before the scan to prevent food or gas from blocking the image.
What Happens During the Scan?
- A specialist called a sonographer performs the test.
- A cold, clear gel is applied to your skin to help the probe glide smoothly and transmit sound waves effectively.
- A small device (probe) is moved over the skin, showing live images on a screen.
- The procedure usually takes between 10 and 45 minutes.
Internal Ultrasound Scans
In some cases, to get a clearer view of the womb, ovaries, or prostate, an internal scan is done using a thin probe inserted into the vagina or rectum. While it may feel pressurized or uncomfortable, it is generally not painful.
Safety and Results
- Safety: Ultrasound is extremely safe and involves no radiation, making it safe for both adults and developing babies.
- Results: After the scan, a written report is prepared and sent to the referring doctor to discuss the next steps.
Note: This summary is for educational purposes. Always follow the specific instructions provided by your healthcare provider.
Source: Doctor O'Donovan
