A 7 year old child with a heart rate of 200 has unstable svt (altered loc and delayed cap refill). what is the preferred treatment?

Treatment: Your child should be under the treatment of a pediatric candiologist. Let him determine the medication needed.

Multiple: As the other answer states, you should take your child to a pediatric cardiologist. He/she will determine the best treatment. In general, there are two options... medicines or a procedure called an EP study with a possible ablation. Each cardiologist is different, but either option is acceptable in my opinion for now. Ultimately, I would expect a cardiologist would perform an EP study. Seek help.