### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
My father in law had a CABG almost 6 weeks ago.  His son took him for a routine followup at the cardiologists office because his bps were running low, in the 80s systolic.  They did an EKG in the office and we were later told that they thought he was in a-flutter. The doctor came in and gave 3 doses of adenosine, my father in law was having trouble breathing after the 2nd dose and went into full cardiac arrest after the 3rd dose.  He did not survive, we took him off life support 3 days later

### output:

DEAR OVERTHINKS FOR CONSULTING AT ChatDoctorI UNDERSTAND YOUR CONCERN. AS YOUR FATHER IN LAW HAD A CABG DONE IT WAS DONE PROBABLY BECAUSE HE HAD BLOCK IN THE CORONARY VESSEL SSO HE WAS SUFFERING FROM ISCHEMIC HEART DISEASE.  FOR WHICH HE WAS TREATED WITH CABGSUCH PATIENTS ARE PRONE TO DEVELOP ARRHYTHMIA LIKE PSV (ATRIAL FLUTTER)THERE ARE MANY RISK FACTORS FOR A FLUTTER POST CARDIAC SURGERY THAT INCLUDEIncreasing age Previous history of Chronic obstructive pulmonary disease (COPD)Elevated preoperative hemoglobin A1c Low-intensity physical activity in the year prior to surgery Caucasian race Obesity ALL THESE CAN PRECIPITATE THE FLUTTER AND THE FLUTTER LED TO THE DEVELOPMENT OF CARDIAC ARREST AND HENCE THE DEMISE OF YOUR FATHER IN LAHORE I HAVE ANSWERED YOUR QUESTION. YOU CAN MESSAGE ME FOR ANY FURTHER CONCERNS