Pediatric Heart Disease

What is the most common cardiac desease in children (10 years)
This syptom a fever and rapid pulse or one!

It's a tricky question, you should not jump to the conclusion of heart disease if they are the only two symptoms. The normal heart rate in a 10 yo is about 95 beats per minute. If the child has a fever that can affect heart rate and accelerate it. You must take the child to the doctor to find out what is causing the first fever. The doctor listens to the heart and will be able to tell if there is something more. If there are more symptoms, so I dig, but the fever and increased human resources do not worry for now.

Fever is most likely an infection (upper respiratory tract infection, ear infection, etc..) Fever causes increased heart rate. Go see a doctor to find out what is causing the fever.