What does it mean when my pa reading is 79.7 and the doctor says the veins should be double the size and the are waiting for 70 stents or bypassing?

Poor Understanding: Pa might refer to pulmonary artery, or a variety of other possibilities. Stents or bypass for coronary veins almost unheard of, though commonly promoted for coronary arteries. 70 for stents is an absurd number, even 7 would be unusually high; poor practice. None of these solve coronary artery disease, only expensive options for symptoms, with risks. You are in way over your head; need better help.