My husband just had a spell of chest pain and shortness of breath.  His blood pressure was markedly down (90 over 64) in the left arm.  The right arm showed 108 over 72 and pulse was 100.  I gave him nitro and aspirin.  Hes better now, but what would cause the blood pressure to go so low?  He is 77 and heart problems have been ruled out.
Hello, welcome to Chat Doctor. Thanks for writing to us. Following may the cause of hypotension in your husbands case:1)postural hypotension2)hypothyroidism3)diabetes4)prior antihypertensive medicines5)severe deny Chat Doctor. Hope I have answered your query. Stay well, Good luck.