<s>[INST] My 17 year old son has been complaining of chest pain. It got so bad he had me up all night one evening. He has been expremely tired and gets dizzy and light headed alot. We went to our doctor, they ran the battery of tests and said he has a bundle blockage in his right artery. He is 6 foot tall and weighs about 115 pounds, always been very healthy. We are seeing a pediatric cartialogist on Monday. I just am so nervous and want to know what to expect. Thank you [/INST] Hello, I would explain that it is important for performing further tests to investigate the possible causes of underlying chest pain: - an exercise cardiac stress test-cardiac enzyme levels-complete blood count, PCR, ESR for inflammation- a cardiac ultrasound in order to examine his heart.  A cardiac MRI may be needed to examine better his cardiac function and structure.  Hope I have answered your query. Let me know if I can assist you further.  </s>