Understanding the right Precautions After Pet Scan is important to ensure your safety and quick recovery. As the scan involves the use of a small dose of radioactive tracer, doctors tend to advise good fluid intake as a means of removing the tracer. Silence is recommended to stay away from children or expectant mothers during the hour or so and any special instructions given by your healthcare provider. These easy measures can help safeguard you and the people around you along with making the results of your PET scan as accurate as possible.